)]}' { "log": [ { "commit": "e96dc9674cb597de4fee757ed005c8465072d13f", "tree": "028f96f0cd026ac242d0ae2c5993cc87d83e5447", "parents": [ "79b408210885b9f7f0b067b07a09d68f4da3a700" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Tue Dec 15 15:39:26 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Dec 30 10:27:04 2009 -0500" }, "message": "tracing/syscalls: Fix typo in SYSCALL_DEFINE0\n\nThe struct syscall_metadata variable name in SYSCALL_DEFINE0\nshould be __syscall_meta__##sname instead of __syscall_meta_##sname\nto match the name that is in SYSCALL_DEFINE1/2/3/4/5/6.\n\nThis error causes event_enter_##sname-\u003edata to point to the wrong\nlocation, which causes syscalls which are defined by SYSCALL_DEFINE0()\nnot to be traced.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4B273D2E.1010807@cn.fujitsu.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "cc0104e877fff32865a67b256d3a9ce52ff15790", "tree": "18779442274e81607822ecb0905c55ac4ce6a163", "parents": [ "16620e0f1990fa6d896a639449c4b3d678458464", "f40542532e96dda5506eb76badea322f2ae4731c" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Dec 14 09:16:49 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Dec 14 09:16:49 2009 +0100" }, "message": "Merge branch \u0027linus\u0027 into tracing/urgent\n\nConflicts:\n\tkernel/trace/trace_kprobe.c\n\nMerge reason: resolve the conflict.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e00bf2ec60605eb95687b7a0c3b83c87c48541dc", "tree": "e0b63423355286bc14cee438b39e9ba681f7327a", "parents": [ "8d18eaaff5acaa58369be342c86e607643ce10c7" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Dec 08 11:17:29 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Dec 13 18:37:28 2009 +0100" }, "message": "tracing: Change event-\u003eprofile_count to be int type\n\nLike total_profile_count, struct ftrace_event_call::profile_count\nis protected by event_mutex, so it doesn\u0027t need to be atomic_t.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c4B1DC549.5010705@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "87d9b4e1c52867a45331a9a5495f6448e0c68b23", "tree": "dcac60fbfa60eec687d723fad780165cec5fd9b1", "parents": [ "4819568f23a8bef0ca99b740ca60fe2450ab0aac" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Dec 08 11:14:20 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sun Dec 13 18:34:23 2009 +0100" }, "message": "tracing: Extract duplicate ftrace_raw_init_event_foo()\n\nUse a generic trace_event_raw_init() function for all event\u0027s raw_init\ncallbacks (but kprobes) instead of defining the same version for each\nof these.\nThis shrinks the kernel code:\n\n text data bss dec hex filename\n5355293 1961928 7103260 14420481 dc0a01 vmlinux.o.old\n5346802 1961864 7103260 14411926 dbe896 vmlinux.o\n\nraw_init can\u0027t be removed, because ftrace events and kprobe events\nuse different raw_init callbacks. Though it\u0027s possible to totally\nremove raw_init, I choose to leave it as it is for now.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nLKML-Reference: \u003c4B1DC48C.7080603@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "f8b7256096a20436f6d0926747e3ac3d64c81d24", "tree": "18bcabd1de263bd2d0f8d6b763bde8b037716c5c", "parents": [ "0067bd8a55862ac9dd212bd1c4f6f5bff1ca1301" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Nov 30 17:37:04 2009 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Dec 11 06:44:29 2009 -0500" }, "message": "Unify sys_mmap*\n\nNew helper - sys_mmap_pgoff(); switch syscalls to using it.\n\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "d7fc02c7bae7b1cf69269992cf880a43a350cdaa", "tree": "a43d56fa72913a1cc98a0bbebe054d08581b3a7c", "parents": [ "ee1262dbc65ce0b6234a915d8432171e8d77f518", "28b4d5cc17c20786848cdc07b7ea237a309776bb" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 08 07:55:01 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 08 07:55:01 2009 -0800" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits)\n mac80211: fix reorder buffer release\n iwmc3200wifi: Enable wimax core through module parameter\n iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter\n iwmc3200wifi: Coex table command does not expect a response\n iwmc3200wifi: Update wiwi priority table\n iwlwifi: driver version track kernel version\n iwlwifi: indicate uCode type when fail dump error/event log\n iwl3945: remove duplicated event logging code\n b43: fix two warnings\n ipw2100: fix rebooting hang with driver loaded\n cfg80211: indent regulatory messages with spaces\n iwmc3200wifi: fix NULL pointer dereference in pmkid update\n mac80211: Fix TX status reporting for injected data frames\n ath9k: enable 2GHz band only if the device supports it\n airo: Fix integer overflow warning\n rt2x00: Fix padding bug on L2PAD devices.\n WE: Fix set events not propagated\n b43legacy: avoid PPC fault during resume\n b43: avoid PPC fault during resume\n tcp: fix a timewait refcnt race\n ...\n\nFix up conflicts due to sysctl cleanups (dead sysctl_check code and\nCTL_UNNUMBERED removed) in\n\tkernel/sysctl_check.c\n\tnet/ipv4/sysctl_net_ipv4.c\n\tnet/ipv6/addrconf.c\n\tnet/sctp/sysctl.c\n" }, { "commit": "6b62fe019e39edfd1dbe3f224ecd0a87d9365223", "tree": "024a4935a646688874b579aa01e9b85f18c41c46", "parents": [ "3a9089fd78367e2c6c815129030b790a0f5c2715" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Dec 02 07:23:10 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 02 09:59:02 2009 +0100" }, "message": "tracing/syscalls: Make syscall events print callbacks static\n\nenter_syscall_print_##sname and exit_syscall_print_##sname don\u0027t\nneed to have a global scope. Make them static.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nLKML-Reference: \u003c1259734990-9034-1-git-send-regression-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3bbe84e9d385205d638035ee9dcc4db1b486ea08", "tree": "e7261e9a3ca13f6e2fd34333e4ccab33b265c32e", "parents": [ "a1301da0997bf73c44dbe584e9070a13adc89672" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Tue Dec 01 16:24:01 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Dec 01 17:33:30 2009 +0100" }, "message": "trace_syscalls: Simplify syscall profile\n\nuse only one prof_sysenter_enable() instead of\nprof_sysenter_enable_##sname()\n\nuse only one prof_sysenter_disable() instead of\nprof_sysenter_disable_##sname()\n\nuse only one prof_sysexit_enable() instead of\nprof_sysexit_enable_##sname()\n\nuse only one prof_sysexit_disable() instead of\nprof_sysexit_disable_##sname()\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4B14D2A1.8060304@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a1301da0997bf73c44dbe584e9070a13adc89672", "tree": "64c7e580f553291bcaaf065fc0dbceee8daf9cd6", "parents": [ "c252f65793874b56d50395ab604db465ce688665" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Tue Dec 01 16:23:55 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Dec 01 17:33:30 2009 +0100" }, "message": "trace_syscalls: Remove duplicate init_enter_##sname()\n\nuse only one init_syscall_trace instead of\nmany init_enter_##sname()/init_exit_##sname()\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4B14D29B.6090708@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c252f65793874b56d50395ab604db465ce688665", "tree": "30bc32361d2b368679910270ec4e99e841fa099b", "parents": [ "fcc19438dda38dacc8c144e2db3ebc6b9fd4f8b8" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Tue Dec 01 16:23:47 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Dec 01 17:33:29 2009 +0100" }, "message": "trace_syscalls: Add syscall_nr field to struct syscall_metadata\n\nAdd syscall_nr field to struct syscall_metadata,\nit helps us to get syscall number easier.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4B14D293.6090800@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fcc19438dda38dacc8c144e2db3ebc6b9fd4f8b8", "tree": "0f82cd0ce19bc113e2ba631c14f2e8c04884d608", "parents": [ "31c16b13349970b2684248c7d8608d2a96ae135d" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Tue Dec 01 16:23:36 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Dec 01 17:33:29 2009 +0100" }, "message": "trace_syscalls: Remove enter_id exit_id\n\nuse -\u003eenter_event-\u003eid instead of -\u003eenter_id\nuse -\u003eexit_event-\u003eid instead of -\u003eexit_id\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4B14D288.7030001@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "31c16b13349970b2684248c7d8608d2a96ae135d", "tree": "0f0a2bee35f604090b30d6724e13bb2faec8a6a5", "parents": [ "bf56a4ea9f1683c5b223fd3a5dbea23f1fa91c34" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Tue Dec 01 16:23:30 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Dec 01 17:33:28 2009 +0100" }, "message": "trace_syscalls: Set event_enter_##sname-\u003edata to its metadata\n\nSet event_enter_##sname-\u003edata to its metadata,\nit makes codes simpler.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4B14D282.7050709@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bf56a4ea9f1683c5b223fd3a5dbea23f1fa91c34", "tree": "c6f54058fb427ab9c4f776c9414f85a60b6344b0", "parents": [ "59d069eb5ae9b033ed1c124c92e1532c4a958991" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Tue Dec 01 16:23:20 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Dec 01 17:33:28 2009 +0100" }, "message": "trace_syscalls: Remove unused event_syscall_enter and event_syscall_exit\n\nfix event_enter_##sname-\u003eevent\nfix event_exit_##sname-\u003eevent\n\nremove unused event_syscall_enter and event_syscall_exit\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4B14D278.4090209@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a2e2725541fad72416326798c2d7fa4dafb7d337", "tree": "6174be11da607e83eb8efb3775114ad4d6e0ca3a", "parents": [ "c05e85a06e376f6b6d59e71e5333d707e956d78b" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Mon Oct 12 23:40:10 2009 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Mon Oct 12 23:40:10 2009 -0700" }, "message": "net: Introduce recvmmsg socket syscall\n\nMeaning receive multiple messages, reducing the number of syscalls and\nnet stack entry/exit operations.\n\nNext patches will introduce mechanisms where protocols that want to\noptimize this operation will provide an unlocked_recvmsg operation.\n\nThis takes into account comments made by:\n\n. Paul Moore: sock_recvmsg is called only for the first datagram,\n sock_recvmsg_nosec is used for the rest.\n\n. Caitlin Bestler: recvmmsg now has a struct timespec timeout, that\n works in the same fashion as the ppoll one.\n\n If the underlying protocol returns a datagram with MSG_OOB set, this\n will make recvmmsg return right away with as many datagrams (+ the OOB\n one) it has received so far.\n\n. Rémi Denis-Courmont \u0026 Steven Whitehouse: If we receive N \u003c vlen\n datagrams and then recvmsg returns an error, recvmmsg will return\n the successfully received datagrams, store the error and return it\n in the next call.\n\nThis paves the way for a subsequent optimization, sk_prot-\u003eunlocked_recvmsg,\nwhere we will be able to acquire the lock only at batch start and end, not at\nevery underlying recvmsg call.\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "d7a4b414eed51f1653bb05ebe84122bf9a7ae18b", "tree": "bd6603a0c27de4c138a1767871897e9cd3e1a1d2", "parents": [ "1f0ab40976460bc4673fa204ce917a725185d8f2", "a724eada8c2a7b62463b73ccf73fd0bb6e928aeb" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Sep 23 23:08:43 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Sep 23 23:08:43 2009 +0200" }, "message": "Merge commit \u0027linus/master\u0027 into tracing/kprobes\n\nConflicts:\n\tkernel/trace/Makefile\n\tkernel/trace/trace.h\n\tkernel/trace/trace_event_types.h\n\tkernel/trace/trace_export.c\n\nMerge reason:\n\tSync with latest significant tracing core changes.\n" }, { "commit": "4fd8da8d62416d0dae05603ab5990a498d9aeb12", "tree": "81feb3cc66d49cfd89b0b26f067bbb52e164d0d8", "parents": [ "a6e995ad7409403c5bbd6fe8f666a280e086bb22" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Sep 23 17:49:55 2009 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 09:21:05 2009 -0700" }, "message": "fs: change sys_truncate length parameter type\n\nFor this system call user space passes a signed long length parameter,\nwhile the kernel side takes an unsigned long parameter and converts it\nlater to signed long again.\n\nThis has led to bugs in compat wrappers see e.g. dd90bbd5 \"powerpc: Add\ncompat_sys_truncate\". The s390 compat wrapper for this functions is\nbroken as well since it also performs zero extension instead of sign\nextension for the length parameter.\n\nIn addition if hpa comes up with an automated way of generating\ncompat wrappers it would generate a wrong one here.\n\nSo change the length parameter from unsigned long to long.\n\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "43c1266ce4dc06bfd236cec31e11e9ecd69c0bef", "tree": "40a86739ca4c36200f447f655b01c57cfe646e26", "parents": [ "b8c7f1dc5ca4e0d10709182233cdab932cef593d", "57c0c15b5244320065374ad2c54f4fbec77a6428" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:15:07 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:15:07 2009 -0700" }, "message": "Merge branch \u0027perfcounters-rename-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perfcounters-rename-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf: Tidy up after the big rename\n perf: Do the big rename: Performance Counters -\u003e Performance Events\n perf_counter: Rename \u0027event\u0027 to event_id/hw_event\n perf_counter: Rename list_entry -\u003e group_entry, counter_list -\u003e group_list\n\nManually resolved some fairly trivial conflicts with the tracing tree in\ninclude/trace/ftrace.h and kernel/trace/trace_syscalls.c.\n" }, { "commit": "cdd6c482c9ff9c55475ee7392ec8f672eddb7be6", "tree": "81f98a3ab46c589792057fe2392c1e10f8ad7893", "parents": [ "dfc65094d0313cc48969fa60bcf33d693aeb05a7" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 12:02:48 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 14:28:04 2009 +0200" }, "message": "perf: Do the big rename: Performance Counters -\u003e Performance Events\n\nBye-bye Performance Counters, welcome Performance Events!\n\nIn the past few months the perfcounters subsystem has grown out its\ninitial role of counting hardware events, and has become (and is\nbecoming) a much broader generic event enumeration, reporting, logging,\nmonitoring, analysis facility.\n\nNaming its core object \u0027perf_counter\u0027 and naming the subsystem\n\u0027perfcounters\u0027 has become more and more of a misnomer. With pending\ncode like hw-breakpoints support the \u0027counter\u0027 name is less and\nless appropriate.\n\nAll in one, we\u0027ve decided to rename the subsystem to \u0027performance\nevents\u0027 and to propagate this rename through all fields, variables\nand API names. (in an ABI compatible fashion)\n\nThe word \u0027event\u0027 is also a bit shorter than \u0027counter\u0027 - which makes\nit slightly more convenient to write/handle as well.\n\nThanks goes to Stephane Eranian who first observed this misnomer and\nsuggested a rename.\n\nUser-space tooling and ABI compatibility is not affected - this patch\nshould be function-invariant. (Also, defconfigs were not touched to\nkeep the size down.)\n\nThis patch has been generated via the following script:\n\n FILES\u003d$(find * -type f | grep -vE \u0027oprofile|[^K]config\u0027)\n\n sed -i \\\n -e \u0027s/PERF_EVENT_/PERF_RECORD_/g\u0027 \\\n -e \u0027s/PERF_COUNTER/PERF_EVENT/g\u0027 \\\n -e \u0027s/perf_counter/perf_event/g\u0027 \\\n -e \u0027s/nb_counters/nb_events/g\u0027 \\\n -e \u0027s/swcounter/swevent/g\u0027 \\\n -e \u0027s/tpcounter_event/tp_event/g\u0027 \\\n $FILES\n\n for N in $(find . -name perf_counter.[ch]); do\n M\u003d$(echo $N | sed \u0027s/perf_counter/perf_event/g\u0027)\n mv $N $M\n done\n\n FILES\u003d$(find . -name perf_event.*)\n\n sed -i \\\n -e \u0027s/COUNTER_MASK/REG_MASK/g\u0027 \\\n -e \u0027s/COUNTER/EVENT/g\u0027 \\\n -e \u0027s/\\\u003cevent\\\u003e/event_id/g\u0027 \\\n -e \u0027s/counter/event/g\u0027 \\\n -e \u0027s/Counter/Event/g\u0027 \\\n $FILES\n\n... to keep it as correct as possible. This script can also be\nused by anyone who has pending perfcounters patches - it converts\na Linux kernel tree over to the new naming. We tried to time this\nchange to the point in time where the amount of pending patches\nis the smallest: the end of the merge window.\n\nNamespace clashes were fixed up in a preparatory patch - and some\nstylistic fallout will be fixed up in a subsequent patch.\n\n( NOTE: \u0027counters\u0027 are still the proper terminology when we deal\n with hardware registers - and these sed scripts are a bit\n over-eager in renaming them. I\u0027ve undone some of that, but\n in case there\u0027s something left where \u0027counter\u0027 would be\n better than \u0027event\u0027 we can undo that on an individual basis\n instead of touching an otherwise nicely automated patch. )\n\nSuggested-by: Stephane Eranian \u003ceranian@google.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nReviewed-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e5e25cf47b0bdd1f7e9b8bb6368ee48e16de0c87", "tree": "043e6215359853812130324a24e3d03511b41e2b", "parents": [ "0efb4d20723d58edbad29d1ff98a86b631adb5e6" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 18 00:54:43 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 18 06:14:32 2009 +0200" }, "message": "tracing: Factorize the events profile accounting\n\nFactorize the events enabling accounting in a common tracing core\nhelper. This reduces the size of the profile_enable() and\nprofile_disable() callbacks for each trace events.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8f8ffe2485bcaa890800681451d380779cea06af", "tree": "1d2ef3a27f1cab9a2b9014f4b75886a96a1ae8db", "parents": [ "70069577323e6f72b845166724f34b9858134437", "d28daf923ac5e4a0d7cecebae56f3e339189366b" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 11 01:09:23 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 11 01:09:23 2009 +0200" }, "message": "Merge commit \u0027tracing/core\u0027 into tracing/kprobes\n\nConflicts:\n\tkernel/trace/trace_export.c\n\tkernel/trace/trace_kprobe.c\n\nMerge reason: This topic branch lacks an important\nbuild fix in tracing/core:\n\n\t0dd7b74787eaf7858c6c573353a83c3e2766e674:\n\ttracing: Fix double CPP substitution in TRACE_EVENT_FN\n\nthat prevents from multiple tracepoint headers inclusion crashes.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "8e254c1d183f0225ad21f9049641529e56cce4da", "tree": "5b559726a38b60c6bc92b3c8667c676db1038701", "parents": [ "73222acf966792c7fda219724af963339be32e62" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Aug 31 16:49:41 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 31 10:58:08 2009 +0200" }, "message": "tracing/filters: Defer pred allocation\n\ninit_preds() allocates about 5392 bytes of memory (on x86_32) for\na TRACE_EVENT. With my config, at system boot total memory occupied\nis:\n\n\t5392 * (642 + 15) \u003d\u003d 3459KB\n\n642 \u003d\u003d cat available_events | wc -l\n15 \u003d\u003d number of dirs in events/ftrace\n\nThat\u0027s quite a lot, so we\u0027d better defer memory allocation util\nit\u0027s needed, that\u0027s when filter is used.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nLKML-Reference: \u003c4A9B8EA5.6020700@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bd1a5c849bdcc5c89e4a6a18216cd2b9a7a8a78f", "tree": "1a807fef00b8a700d90683d4f1d480d95eec9669", "parents": [ "b1cf540f0e5278ecfe8532557e547d833ed269d7" ], "author": { "name": "Masami Hiramatsu", "email": "mhiramat@redhat.com", "time": "Thu Aug 13 16:34:53 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Aug 27 00:46:40 2009 +0200" }, "message": "tracing: Ftrace dynamic ftrace_event_call support\n\nAdd dynamic ftrace_event_call support to ftrace. Trace engines can add\nnew ftrace_event_call to ftrace on the fly. Each operator function of\nthe call takes an ftrace_event_call data structure as an argument,\nbecause these functions may be shared among several ftrace_event_calls.\n\nChanges from v13:\n - Define remove_subsystem_dir() always (revirt a2ca5e03), because\n trace_remove_event_call() uses it.\n - Modify syscall tracer because of ftrace_event_call change.\n\n[fweisbec@gmail.com: Fixed conflict against latest tracing/core]\n\nSigned-off-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Avi Kivity \u003cavi@redhat.com\u003e\nCc: Andi Kleen \u003cak@linux.intel.com\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\u003e\nCc: Frank Ch. Eigler \u003cfche@redhat.com\u003e\nCc: H. Peter Anvin \u003chpa@zytor.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Jim Keniston \u003cjkenisto@us.ibm.com\u003e\nCc: K.Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Przemysław Pawełczyk \u003cprzemyslaw@pawelczyk.it\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nCc: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Vegard Nossum \u003cvegard.nossum@gmail.com\u003e\nLKML-Reference: \u003c20090813203453.31965.71901.stgit@localhost.localdomain\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "540b7b8d65575c80162f2a0f38e1d313c92a6042", "tree": "664bdd01ce8fce990e634a304f9b3ab51e50970c", "parents": [ "e647d6b314266adb904d4b84973eda0afa856946" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed Aug 19 15:54:51 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 19 15:02:24 2009 +0200" }, "message": "tracing/syscalls: Add filtering support\n\nAdd filtering support for syscall events:\n\n # echo \u0027mode \u003d\u003d 0666\u0027 \u003e events/syscalls/sys_enter_open\n # echo \u0027ret \u003d\u003d 0\u0027 \u003e events/syscalls/sys_exit_open\n # echo 1 \u003e events/syscalls/sys_enter_open\n # echo 1 \u003e events/syscalls/sys_exit_open\n # cat trace\n ...\n modprobe-3084 [001] 117.463140: sys_open(filename: 917d3e8, flags: 0, mode: 1b6)\n modprobe-3084 [001] 117.463176: sys_open -\u003e 0x0\n less-3086 [001] 117.510455: sys_open(filename: 9c6bdb8, flags: 8000, mode: 1b6)\n sendmail-2574 [001] 122.145840: sys_open(filename: b807a365, flags: 0, mode: 1b6)\n ...\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4A8BAFCB.1040006@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "10a5b66f625904ad5a2867cf7a28073e1236ff32", "tree": "165c3d0f480e2862d3d97f3f3ceecad9c1cdc8b8", "parents": [ "e6971969c331caa5c3c88cbd1be4f465b3355452" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed Aug 19 15:53:05 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 19 15:02:23 2009 +0200" }, "message": "tracing/syscalls: Add fields format for exit events\n\nAdd \"format\" file for syscall exit events:\n\n # cat events/syscalls/sys_exit_open/format\n name: sys_exit_open\n ID: 344\n format:\n field:unsigned short common_type; offset:0; size:2;\n field:unsigned char common_flags; offset:2; size:1;\n field:unsigned char common_preempt_count; offset:3; size:1;\n field:int common_pid; offset:4; size:4;\n field:int common_tgid; offset:8; size:4;\n\n field:int nr; offset:12; size:4;\n field:unsigned long ret; offset:16; size:4;\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4A8BAF61.3060307@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "dc4ddb4c0b7348f1c9759ae8a9e7d734dc1cda82", "tree": "00c0df5d9b7809a0c0cf89713c55c7e04ce6c248", "parents": [ "e8f9f4d79a677f55c8ec3acbe87b33a87e2df0de" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 19:03:54 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:30 2009 +0200" }, "message": "tracing: Add fields format definition for syscall events\n\nDefine the format of the syscall trace fields to parse the binary\nvalues from a raw trace using the syscall events \"format\" file.\n\nThis is defined dynamically using the syscalls metadata.\nIt prepares the export of syscall event raw records to perf\ncounters.\n\nExample:\n\n$ cat /debug/tracing/events/syscalls/sys_enter_sched_getparam/format\nname: sys_enter_sched_getparam\nID: 39\nformat:\n\tfield:unsigned short common_type;\toffset:0;\tsize:2;\n\tfield:unsigned char common_flags;\toffset:2;\tsize:1;\n\tfield:unsigned char common_preempt_count;\toffset:3;\tsize:1;\n\tfield:int common_pid;\toffset:4;\tsize:4;\n\tfield:int common_tgid;\toffset:8;\tsize:4;\n\n\tfield:pid_t pid;\toffset:12;\tsize:8;\n\tfield:struct sched_param * param;\toffset:20;\tsize:8;\n\nprint fmt: \"pid: 0x%08lx, param: 0x%08lx\", ((unsigned long)(REC-\u003epid)), ((unsigned long)(REC-\u003eparam))\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\n" }, { "commit": "f4b5ffccc83c82947f5d9f15d6f1b6edb1b71cd7", "tree": "06ec4a005b40ba0b6039e6c3425dd186486b8c6f", "parents": [ "64c12e0444fcc6b75eb49144ba46d43dbdc6bc8f" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:53:02 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:29 2009 +0200" }, "message": "tracing: Add perf counter support for syscalls tracing\n\nThe perf counter support is automated for usual trace events. But we\nhave to define specific callbacks for this to handle syscalls trace\nevents\n\nMake \u0027perf stat -e syscalls:sys_enter_blah\u0027 work with syscall style\ntracepoints.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "64c12e0444fcc6b75eb49144ba46d43dbdc6bc8f", "tree": "8fe7b546fe787061fca8f97ed2051f40f9b16a57", "parents": [ "fb34a08c3469b2be9eae626ccb96476b4687b810" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:52:53 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:28 2009 +0200" }, "message": "tracing: Add individual syscalls tracepoint id support\n\nThe current state of syscalls tracepoints generates only one event id\nfor every syscall events.\n\nThis patch associates an id with each syscall trace event, so that we\ncan identify each syscall trace event using the \u0027perf\u0027 tool.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "fb34a08c3469b2be9eae626ccb96476b4687b810", "tree": "f308cd109de2c967a1f8bd485eb9c398992a9414", "parents": [ "69fd4f0eb2ececbf8ade55e31a933e174965745e" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 10 16:52:47 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Aug 11 20:35:28 2009 +0200" }, "message": "tracing: Add trace events for each syscall entry/exit\n\nLayer Frederic\u0027s syscall tracer on tracepoints. We create trace events\nvia hooking into the SYSCALL_DEFINE macros. This allows us to\nindividually toggle syscall entry and exit points on/off.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "7afdbf23c3acdec3eaf1b94f87132fff3d81ce73", "tree": "d9249575f95beacb1c2698d9e76ffcb1341fa0cf", "parents": [ "c222dce48cb2adf5ed68201fb2a59d00544b9a74" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Tue Jul 07 10:23:43 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Jul 07 10:51:39 2009 +0200" }, "message": "signals: declare sys_rt_tgsigqueueinfo in syscalls.h\n\nsys_rt_tgsigqueueinfo needs to be declared in linux/syscalls.h so that\narchitectures defining the system call table in C can reference it.\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nLKML-Reference: \u003c200907071023.44008.arnd@arndb.de\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n\n" }, { "commit": "cc6f26774136b7f5307abcd3887f08360c9b7554", "tree": "f70e43b1e48abc611b8ef829710821b9577db937", "parents": [ "e4c9dd0fbad60c098a026e9b06d9de1bc98c5e89" ], "author": { "name": "Masatake YAMATO", "email": "yamato@redhat.com", "time": "Tue Jun 16 15:33:49 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 16 19:47:52 2009 -0700" }, "message": "syscalls.h: remove duplicated declarations for sys_pipe2\n\nsys_pipe2 is declared twice in include/linux/syscalls.h.\n\nSigned-off-by: Masatake YAMATO \u003cyamato@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "974802eaa1afdc87e00821df7020a2b3c6fee623", "tree": "b5c38bece7f4948fe9d5cf9be02a0042e0fa39f6", "parents": [ "bbd36e5e6aa6f1757c84cdb406b6eb81686d14af" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jun 12 12:46:55 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jun 12 14:28:52 2009 +0200" }, "message": "perf_counter: Add forward/backward attribute ABI compatibility\n\nProvide for means of extending the perf_counter_attr in a \u0027natural\u0027 way.\n\nWe allow growing the structure by appending fields at the end by specifying\nthe full structure size inside it.\n\nWhen a new kernel sees a smaller (old) structure, it will 0 pad the tail.\nWhen an old kernel sees a larger (new) structure, it will verify the tail\nconsists of 0s, otherwise fail.\n\nIf we fail due to a size-mismatch, we return -E2BIG and write the kernel\u0027s\nnative attribe size back into the provided structure.\n\nFurthermore, add some attribute verification, so that we\u0027ll fail counter\ncreation when unknown bits are present (PERF_SAMPLE, PERF_FORMAT, or in\nthe __reserved fields).\n\n(This ABI detail is introduced while keeping the existing syscall ABI.)\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0d48696f87e3618b0d35bd3e4e9d7c188d51e7de", "tree": "633d37089c368c0cc2c4f8120014d57df215bb53", "parents": [ "08247e31ca79b8f02cce47b7e8120797a8726606" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Jun 02 19:22:16 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jun 02 21:45:33 2009 +0200" }, "message": "perf_counter: Rename perf_counter_hw_event \u003d\u003e perf_counter_attr\n\nThe structure isn\u0027t hw only and when I read event, I think about those\nthings that fall out the other end. Rename the thing.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Marcelo Tosatti \u003cmtosatti@redhat.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: John Kacur \u003cjkacur@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@googlemail.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "dc3f81b129b5439ba7bac265bbc6a51a39275dae", "tree": "216030731d911249496d2e97206cd61431e31c89", "parents": [ "d2517a49d55536b38c7a87e5289550cfedaa4dcc", "1406de8e11eb043681297adf86d6892ff8efc27a" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon May 18 07:37:44 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon May 18 07:37:49 2009 +0200" }, "message": "Merge commit \u0027v2.6.30-rc6\u0027 into perfcounters/core\n\nMerge reason: this branch was on an -rc4 base, merge it up to -rc6\n to get the latest upstream fixes.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ecf4667d30dd63fa130e22f8f2da3e6ce003358b", "tree": "1ad1603bd191bf1c128f650c2e2be6555fa4feac", "parents": [ "7348d82a67b3fe0363e7f0679b50ecbdc65116c7" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Tue May 12 13:19:37 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 12 14:11:35 2009 -0700" }, "message": "syscalls.h add the missing sys_pipe2 declaration\n\nIn order to build the generic syscall table, we need a declaration for\nevery system call. sys_pipe2 was added without a proper declaration, so\nadd this to syscalls.h now.\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e7fd5d4b3d240f42c30a9e3d20a4689c4d3a795a", "tree": "4ba588631dd8189a818a91c9e3976526071178b6", "parents": [ "1130b0296184bc21806225fd06d533515a99d2db", "56a50adda49b2020156616c4eb15353e0f9ad7de" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Apr 29 14:46:59 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Apr 29 14:47:05 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into perfcounters/core\n\nMerge reason: This brach was on -rc1, refresh it to almost-rc4 to pick up\n the latest upstream fixes.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8b9cf76d0fa6cd98fe42dd2f86460d6ede55fed8", "tree": "2c9f926f83bdcbc260304aa243087613a3894871", "parents": [ "8340437210390676f687633a80e3748c40885dc8" ], "author": { "name": "Thomas Bogendoerfer", "email": "tsbogend@alpha.franken.de", "time": "Tue Apr 21 13:44:13 2009 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 21 07:50:58 2009 -0700" }, "message": "Fix SYSCALL_ALIAS for older MIPS assembler\n\nOlder MIPS assembler don\u0027t support .set for defining aliases.\nUsing \u003d works for old and new assembers.\n\nSigned-off-by: Thomas Bogendoerfer \u003ctsbogend@alpha.franken.de\u003e\nAcked-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "47788c58e66c050982241d9a05eb690daceb05a9", "tree": "96b8658e36bad85d1e77345b7be1edb6fdb9e1d1", "parents": [ "f876d346e3807647b1de411de6a86c44821896ca" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Apr 08 20:40:59 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Apr 09 05:43:32 2009 +0200" }, "message": "tracing/syscalls: use a dedicated file header\n\nImpact: fix build warnings and possibe compat misbehavior on IA64\n\nBuilding a kernel on ia64 might trigger these ugly build warnings:\n\nCC arch/ia64/ia32/sys_ia32.o\nIn file included from arch/ia64/ia32/sys_ia32.c:55:\narch/ia64/ia32/ia32priv.h:290:1: warning: \"elf_check_arch\" redefined\nIn file included from include/linux/elf.h:7,\n from include/linux/module.h:14,\n from include/linux/ftrace.h:8,\n from include/linux/syscalls.h:68,\n from arch/ia64/ia32/sys_ia32.c:18:\narch/ia64/include/asm/elf.h:19:1: warning: this is the location of the previous definition\n[...]\n\nsys_ia32.c includes linux/syscalls.h which in turn includes linux/ftrace.h\nto import the syscalls tracing prototypes.\n\nBut including ftrace.h can pull too much things for a low level file,\nespecially on ia64 where the ia32 private headers conflict with higher\nlevel headers.\n\nNow we isolate the syscall tracing headers in their own lightweight file.\n\nReported-by: Tony Luck \u003ctony.luck@intel.com\u003e\nTested-by: Tony Luck \u003ctony.luck@intel.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Tony Luck \u003ctony.luck@intel.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: \"Frank Ch. Eigler\" \u003cfche@redhat.com\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Michael Rubin \u003cmrubin@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Michael Davidson \u003cmd@google.com\u003e\nLKML-Reference: \u003c20090408184058.GB6017@nowhere\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f541ae326fa120fa5c57433e4d9a133df212ce41", "tree": "bdbd94ec72cfc601118051cb35e8617d55510177", "parents": [ "e255357764f92afcafafbd4879b222b8c752065a", "0221c81b1b8eb0cbb6b30a0ced52ead32d2b4e4c" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:02:57 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:02:57 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into perfcounters/core-v2\n\nMerge reason: we have gathered quite a few conflicts, need to merge upstream\n\nConflicts:\n\tarch/powerpc/kernel/Makefile\n\tarch/x86/ia32/ia32entry.S\n\tarch/x86/include/asm/hardirq.h\n\tarch/x86/include/asm/unistd_32.h\n\tarch/x86/include/asm/unistd_64.h\n\tarch/x86/kernel/cpu/common.c\n\tarch/x86/kernel/irq.c\n\tarch/x86/kernel/syscall_table_32.S\n\tarch/x86/mm/iomap_32.c\n\tinclude/linux/sched.h\n\tkernel/Makefile\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "714f83d5d9f7c785f622259dad1f4fad12d64664", "tree": "20563541ae438e11d686b4d629074eb002a481b7", "parents": [ "8901e7ffc2fa78ede7ce9826dbad68a3a25dc2dc", "645dae969c3b8651c5bc7c54a1835ec03820f85f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 11:04:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 11:04:19 2009 -0700" }, "message": "Merge branch \u0027tracing-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (413 commits)\n tracing, net: fix net tree and tracing tree merge interaction\n tracing, powerpc: fix powerpc tree and tracing tree interaction\n ring-buffer: do not remove reader page from list on ring buffer free\n function-graph: allow unregistering twice\n trace: make argument \u0027mem\u0027 of trace_seq_putmem() const\n tracing: add missing \u0027extern\u0027 keywords to trace_output.h\n tracing: provide trace_seq_reserve()\n blktrace: print out BLK_TN_MESSAGE properly\n blktrace: extract duplidate code\n blktrace: fix memory leak when freeing struct blk_io_trace\n blktrace: fix blk_probes_ref chaos\n blktrace: make classic output more classic\n blktrace: fix off-by-one bug\n blktrace: fix the original blktrace\n blktrace: fix a race when creating blk_tree_root in debugfs\n blktrace: fix timestamp in binary output\n tracing, Text Edit Lock: cleanup\n tracing: filter fix for TRACE_EVENT_FORMAT events\n ftrace: Using FTRACE_WARN_ON() to check \"freed record\" in ftrace_release()\n x86: kretprobe-booster interrupt emulation code fix\n ...\n\nFix up trivial conflicts in\n arch/parisc/include/asm/ftrace.h\n include/linux/memory.h\n kernel/extable.c\n kernel/module.c\n" }, { "commit": "601cc11d054ae4b5e9b5babec3d8e4667a2cb9b5", "tree": "725ec3422b4fe50267915c1d5b80c49712ffff75", "parents": [ "6bb597507f9839b13498781e481f5458aea33620" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 08:03:22 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Apr 04 14:20:34 2009 -0700" }, "message": "Make non-compat preadv/pwritev use native register size\n\nInstead of always splitting the file offset into 32-bit \u0027high\u0027 and \u0027low\u0027\nparts, just split them into the largest natural word-size - which in C\nterms is \u0027unsigned long\u0027.\n\nThis allows 64-bit architectures to avoid the unnecessary 32-bit\nshifting and masking for native format (while the compat interfaces will\nobviously always have to do it).\n\nThis also changes the order of \u0027high\u0027 and \u0027low\u0027 to be \"low first\". Why?\nBecause when we have it like this, the 64-bit system calls now don\u0027t use\nthe \"pos_high\" argument at all, and it makes more sense for the native\nsystem call to simply match the user-mode prototype.\n\nThis results in a much more natural calling convention, and allows the\ncompiler to generate much more straightforward code. On x86-64, we now\ngenerate\n\n testq %rcx, %rcx # pos_l\n js .L122 #,\n movq %rcx, -48(%rbp) # pos_l, pos\n\nfrom the C source\n\n loff_t pos \u003d pos_from_hilo(pos_h, pos_l);\n\t...\n if (pos \u003c 0)\n return -EINVAL;\n\nand the \u0027pos_h\u0027 register isn\u0027t even touched. It used to generate code\nlike\n\n mov %r8d, %r8d # pos_low, pos_low\n salq $32, %rcx #, tmp71\n movq %r8, %rax # pos_low, pos.386\n orq %rcx, %rax # tmp71, pos.386\n js .L122 #,\n movq %rax, -48(%rbp) # pos.386, pos\n\nwhich isn\u0027t _that_ horrible, but it does show how the natural word size\nis just a more sensible interface (same arguments will hold in the user\nlevel glibc wrapper function, of course, so the kernel side is just half\nof the equation!)\n\nNote: in all cases the user code wrapper can again be the same. You can\njust do\n\n\t#define HALF_BITS (sizeof(unsigned long)*4)\n\t__syscall(PWRITEV, fd, iov, count, offset, (offset \u003e\u003e HALF_BITS) \u003e\u003e HALF_BITS);\n\nor something like that. That way the user mode wrapper will also be\nnicely passing in a zero (it won\u0027t actually have to do the shifts, the\ncompiler will understand what is going on) for the last argument.\n\nAnd that is a good idea, even if nobody will necessarily ever care: if\nwe ever do move to a 128-bit lloff_t, this particular system call might\nbe left alone. Of course, that will be the least of our worries if we\nreally ever need to care, so this may not be worth really caring about.\n\n[ Fixed for lost \u0027loff_t\u0027 cast noticed by Andrew Morton ]\n\nAcked-by: Gerd Hoffmann \u003ckraxel@redhat.com\u003e\nCc: H. Peter Anvin \u003chpa@zytor.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: linux-api@vger.kernel.org\nCc: linux-arch@vger.kernel.org\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f3554f4bc69803ac2baaf7cf2aa4339e1f4b693e", "tree": "52505043de254dc3e34dad7110724fcc1f489eb9", "parents": [ "6949a6318e60aeb9c755679ac7f978aefe8c1722" ], "author": { "name": "Gerd Hoffmann", "email": "kraxel@redhat.com", "time": "Thu Apr 02 16:59:23 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:08 2009 -0700" }, "message": "preadv/pwritev: Add preadv and pwritev system calls.\n\nThis patch adds preadv and pwritev system calls. These syscalls are a\npretty straightforward combination of pread and readv (same for write).\nThey are quite useful for doing vectored I/O in threaded applications.\nUsing lseek+readv instead opens race windows you\u0027ll have to plug with\nlocking.\n\nOther systems have such system calls too, for example NetBSD, check\nhere: http://www.daemon-systems.org/man/preadv.2.html\n\nThe application-visible interface provided by glibc should look like\nthis to be compatible to the existing implementations in the *BSD family:\n\n ssize_t preadv(int d, const struct iovec *iov, int iovcnt, off_t offset);\n ssize_t pwritev(int d, const struct iovec *iov, int iovcnt, off_t offset);\n\nThis prototype has one problem though: On 32bit archs is the (64bit)\noffset argument unaligned, which the syscall ABI of several archs doesn\u0027t\nallow to do. At least s390 needs a wrapper in glibc to handle this. As\nwe\u0027ll need a wrappers in glibc anyway I\u0027ve decided to push problem to\nglibc entriely and use a syscall prototype which works without\narch-specific wrappers inside the kernel: The offset argument is\nexplicitly splitted into two 32bit values.\n\nThe patch sports the actual system call implementation and the windup in\nthe x86 system call tables. Other archs follow as separate patches.\n\nSigned-off-by: Gerd Hoffmann \u003ckraxel@redhat.com\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: \u003clinux-api@vger.kernel.org\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bed1ffca022cc876fb83161d26670e9b5d3cf36b", "tree": "a896c79e9ea1af11f992826f1de7e2ece52fbe33", "parents": [ "f58ba100678f421bdcb000a3c71793f432dfab93" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Mar 13 15:42:11 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 13 16:57:42 2009 +0100" }, "message": "tracing/syscalls: core infrastructure for syscalls tracing, enhancements\n\nImpact: new feature\n\nThis adds the generic support for syscalls tracing. This is\ncurrently exploited through a devoted tracer but other tracing\nengines can use it. (They just have to play with\n{start,stop}_ftrace_syscalls() and use the display callbacks\nunless they want to override them.)\n\nThe syscalls prototypes definitions are abused here to steal\nsome metadata informations:\n\n- syscall name, param types, param names, number of params\n\nThe syscall addr is not directly saved during this definition\nbecause we don\u0027t know if its prototype is available in the\nnamespace. But we don\u0027t really need it. The arch has just to\nbuild a function able to resolve the syscall number to its\nmetadata struct.\n\nThe current tracer prints the syscall names, parameters names\nand values (and their types optionally). Currently the value is\na raw hex but higher level values diplaying is on my TODO list.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1236955332-10133-2-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2743a5b0fa6f309da904f2190a9cc25deee34dbd", "tree": "0efad6834902a3e0621bf9a74e5cde8cd49f97e6", "parents": [ "a1ef58f442542d8b3e3b963339fbc522c36e827c" ], "author": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Wed Mar 04 20:36:51 2009 +1100" }, "committer": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Wed Mar 04 20:36:51 2009 +1100" }, "message": "perfcounters: provide expansion room in the ABI\n\nImpact: ABI change\n\nThis expands several fields in the perf_counter_hw_event struct and adds\na \"flags\" argument to the perf_counter_open system call, in order that\nfeatures can be added in future without ABI changes.\n\nIn particular the record_type field is expanded to 64 bits, and the\nspace for flag bits has been expanded from 32 to 64 bits.\n\nThis also adds some new fields:\n\n* read_format (64 bits) is intended to provide a way to specify what\n userspace wants to get back when it does a read() on a simple\n (non-interrupting) counter;\n\n* exclude_idle (1 bit) provides a way for userspace to ask that events\n that occur when the cpu is idle be excluded;\n\n* extra_config_len will provide a way for userspace to supply an\n arbitrary amount of extra machine-specific PMU configuration data\n immediately following the perf_counter_hw_event struct, to allow\n sophisticated users to program things such as instruction matching\n CAMs and address range registers;\n\n* __reserved_3 and __reserved_4 provide space for future expansion.\n\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\n" }, { "commit": "f3dfd2656deb81a0addee4f4ceff66b50a387388", "tree": "2d43269668b2a468a2bd2988b1937f9a71d458b4", "parents": [ "742bd95ba96e19b3f7196c3a0834ebc17c8ba006" ], "author": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Thu Feb 26 22:43:46 2009 +1100" }, "committer": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Thu Feb 26 22:43:46 2009 +1100" }, "message": "perfcounters: fix a few minor cleanliness issues\n\nThis fixes three issues noticed by Arnd Bergmann:\n\n- Add #ifdef __KERNEL__ and move some things around in perf_counter.h\n to make sure only the bits that userspace needs are exported to\n userspace.\n\n- Use __u64, __s64, __u32 types in the structs exported to userspace\n rather than u64, s64, u32.\n\n- Make the sys_perf_counter_open syscall available to the SPUs on\n Cell platforms.\n\nAnd one issue that I noticed in looking at the code again:\n\n- Wrap the perf_counter_open syscall with SYSCALL_DEFINE4 so we get\n the proper handling of int arguments on ppc64 (and some other 64-bit\n architectures).\n\nReported-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\n" }, { "commit": "e9c4ffb11f0b19005b5b9dc8481687a3637e5887", "tree": "7007f2ff846b9b057c5cd7c25e8b82e49f9b4b63", "parents": [ "4bcf349a0f90d1e69eb35c6df0fa285c886c1cd6", "071a0bc2ceace31266836801510879407a3701fa" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Feb 13 09:34:07 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Feb 13 09:34:07 2009 +0100" }, "message": "Merge branch \u0027linus\u0027 into perfcounters/core\n\nConflicts:\n\tarch/x86/kernel/acpi/boot.c\n" }, { "commit": "6c5979631b4b03c9288776562c18036765e398c1", "tree": "00b7546bc54658b3d1d166b75eb1e498b3ee8475", "parents": [ "0e4a9b59282914fe057ab17027f55123964bc2e2" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Feb 11 13:04:38 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Feb 11 14:25:36 2009 -0800" }, "message": "syscall define: fix uml compile bug\n\nWith the new system call defines we get this on uml:\n\narch/um/sys-i386/built-in.o: In function `sys_call_table\u0027:\n(.rodata+0x308): undefined reference to `sys_sigprocmask\u0027\n\nReason for this is that uml passes the preprocessor option\n-Dsigprocmask\u003dkernel_sigprocmask to gcc when compiling the kernel.\nThis causes SYSCALL_DEFINE3(sigprocmask, ...) to be expanded to\nSYSCALL_DEFINEx(3, kernel_sigprocmask, ...) and finally to a system\ncall named sys_kernel_sigprocmask. However sys_sigprocmask is missing\nbecause of this.\n\nTo avoid macro expansion for the system call name just concatenate the\nname at first define instead of carrying it through severel levels.\nThis was pointed out by Al Viro.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nReviewed-by: WANG Cong \u003cwangcong@zeuux.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "95fd4845ed0ffcab305b4f30ce1c12dc34f1b56c", "tree": "aa2aac22a5b329b778a6771a87bbf1945ad49bbd", "parents": [ "d278c48435625cb6b7edcf6a547620768b175709", "8e4921515c1a379539607eb443d51c30f4f7f338" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Feb 11 09:22:04 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Feb 11 09:22:04 2009 +0100" }, "message": "Merge commit \u0027v2.6.29-rc4\u0027 into perfcounters/core\n\nConflicts:\n\tarch/x86/kernel/setup_percpu.c\n\tarch/x86/mm/fault.c\n\tdrivers/acpi/processor_idle.c\n\tkernel/irq/handle.c\n" }, { "commit": "e5d9a90c36e05dd080704ea58328c00f64facdc1", "tree": "e393a9216a5ccab3010e01bc6a3f9cee2cd49164", "parents": [ "299b4eaa302138426d5a9ecd954de1f565d76c94" ], "author": { "name": "Ivan Kokshaysky", "email": "ink@jurassic.park.msu.ru", "time": "Thu Jan 29 14:25:18 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jan 29 18:04:44 2009 -0800" }, "message": "alpha: use syscall wrappers\n\nConvert OSF syscalls and add alpha specific SYSCALL_ALIAS() macro.\n\nSigned-off-by: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "77835492ed489c0b870f82f4c50687bd267acc0a", "tree": "d80903ce1b8dd30aa44ccfc756616ad4d6c74d63", "parents": [ "af37501c792107c2bde1524bdae38d9a247b841a", "1de9e8e70f5acc441550ca75433563d91b269bbe" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jan 21 16:37:27 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jan 21 16:37:27 2009 +0100" }, "message": "Merge commit \u0027v2.6.29-rc2\u0027 into perfcounters/core\n\nConflicts:\n\tinclude/linux/syscalls.h\n" }, { "commit": "2b66421995d2e93c9d1a0111acf2581f8529c6e5", "tree": "6e22e752ab4e24b9b1c6b1ddfd2b30a3c9e58893", "parents": [ "d4e82042c4cfa87a7d51710b71f568fe80132551" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:14:35 2009 +0100" }, "committer": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:15:32 2009 +0100" }, "message": "[CVE-2009-0029] System call wrappers part 33\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\n" }, { "commit": "d4e82042c4cfa87a7d51710b71f568fe80132551", "tree": "202c311b52f4e4db9fbbbd80607744e2aa2e5885", "parents": [ "836f92adf121f806e9beb5b6b88bd5c9c4ea3f24" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:14:34 2009 +0100" }, "committer": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:15:31 2009 +0100" }, "message": "[CVE-2009-0029] System call wrappers part 32\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\n" }, { "commit": "ee6a093222549ac0c72cfd296c69fa5e7d6daa34", "tree": "8f1788edc08009b80ee299b843cdc7bf3ac4bcdc", "parents": [ "1a94bc34768e463a93cb3751819709ab0ea80a01" ], "author": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Wed Jan 14 14:14:00 2009 +0100" }, "committer": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:15:17 2009 +0100" }, "message": "[CVE-2009-0029] powerpc: Enable syscall wrappers for 64-bit\n\nThis enables the use of syscall wrappers to do proper sign extension\nfor 64-bit programs.\n\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\n" }, { "commit": "1a94bc34768e463a93cb3751819709ab0ea80a01", "tree": "a27753a61c2aa02d31b2d1f8efe9f00e68770856", "parents": [ "f627a741d24f12955fa2d9f8831c3b12860635bd" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:13:59 2009 +0100" }, "committer": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:15:16 2009 +0100" }, "message": "[CVE-2009-0029] System call wrapper infrastructure\n\nFrom: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\n\nBy selecting HAVE_SYSCALL_WRAPPERS architectures can activate\nsystem call wrappers in order to sign extend system call arguments.\n\nAll architectures where the ABI defines that the caller of a function\nhas to perform sign extension probably need this.\n\nReported-by: Christian Borntraeger \u003cborntraeger@de.ibm.com\u003e\nAcked-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\n" }, { "commit": "e55380edf68796d75bf41391a781c68ee678587d", "tree": "3f40b4c46c8723bb5bec0e2e009416069a7725fc", "parents": [ "2ed7c03ec17779afb4fcfa3b8c61df61bd4879ba" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:13:55 2009 +0100" }, "committer": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:15:15 2009 +0100" }, "message": "[CVE-2009-0029] Rename old_readdir to sys_old_readdir\n\nThis way it matches the generic system call name convention.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\n" }, { "commit": "2ed7c03ec17779afb4fcfa3b8c61df61bd4879ba", "tree": "4e0fefd574bab5470a02edf439727f472a9663c6", "parents": [ "4c696ba7982501d43dea11dbbaabd2aa8a19cc42" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:13:54 2009 +0100" }, "committer": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:15:14 2009 +0100" }, "message": "[CVE-2009-0029] Convert all system calls to return a long\n\nConvert all system calls to return a long. This should be a NOP since all\nconverted types should have the same size anyway.\nWith the exception of sys_exit_group which returned void. But that doesn\u0027t\nmatter since the system call doesn\u0027t return.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\n" }, { "commit": "4c696ba7982501d43dea11dbbaabd2aa8a19cc42", "tree": "94c58f1c1e9385068b324b10d8d72ae278bc62ad", "parents": [ "a6525042bfdfcab128bd91fad264de10fd24a55e" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:13:53 2009 +0100" }, "committer": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:15:14 2009 +0100" }, "message": "[CVE-2009-0029] Move compat system call declarations to compat header file\n\nMove declarations to correct header file.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\n" }, { "commit": "506c10f26c481b7f8ef27c1c79290f68989b2e9e", "tree": "03de82e812f00957aa6276dac2fe51c3358e88d7", "parents": [ "e1df957670aef74ffd9a4ad93e6d2c90bf6b4845", "c59765042f53a79a7a65585042ff463b69cb248c" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Jan 11 02:42:53 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Jan 11 02:42:53 2009 +0100" }, "message": "Merge commit \u0027v2.6.29-rc1\u0027 into perfcounters/core\n\nConflicts:\n\tinclude/linux/kernel_stat.h\n" }, { "commit": "4ae8978cf92a96257cd8998a49e781be83571d64", "tree": "5c5e2719c17093309b4e22bfbf4deb7bd3e91ac8", "parents": [ "2f1169e2dc0c70e213f79ada88a10912cc2fbe94" ], "author": { "name": "Michael Kerrisk", "email": "mtk.manpages@googlemail.com", "time": "Mon Jan 05 07:19:16 2009 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Jan 05 11:54:29 2009 -0500" }, "message": "inotify: fix type errors in interfaces\n\nThe problems lie in the types used for some inotify interfaces, both at the kernel level and at the glibc level. This mail addresses the kernel problem. I will follow up with some suggestions for glibc changes.\n\nFor the sys_inotify_rm_watch() interface, the type of the \u0027wd\u0027 argument is\ncurrently \u0027u32\u0027, it should be \u0027__s32\u0027 . That is Robert\u0027s suggestion, and\nis consistent with the other declarations of watch descriptors in the\nkernel source, in particular, the inotify_event structure in\ninclude/linux/inotify.h:\n\nstruct inotify_event {\n __s32 wd; /* watch descriptor */\n __u32 mask; /* watch mask */\n __u32 cookie; /* cookie to synchronize two events */\n __u32 len; /* length (including nulls) of name */\n char name[0]; /* stub for possible name */\n};\n\nThe patch makes the changes needed for inotify_rm_watch().\n\nSigned-off-by: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: Robert Love \u003crlove@google.com\u003e\nCc: Vegard Nossum \u003cvegard.nossum@gmail.com\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "9f66a3810fe0d4100972db84290f3ae4a4d77025", "tree": "2101d0d14aecf9d3e406544711e7336e3ea6b3af", "parents": [ "dfa7c899b401d7dc5d85aca416aee64ac82812f2" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 10 12:33:23 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 11 15:45:48 2008 +0100" }, "message": "perf counters: restructure the API\n\nImpact: clean up new API\n\nThorough cleanup of the new perf counters API, we now get clean separation\nof the various concepts:\n\n - introduce perf_counter_hw_event to separate out the event source details\n\n - move special type flags into separate attributes: PERF_COUNT_NMI,\n PERF_COUNT_RAW\n\n - extend the type to u64 and reserve it fully to the architecture in the\n raw type case.\n\nAnd make use of all these changes in the core and x86 perfcounters code.\n\nAlso change the syscall signature to:\n\n asmlinkage int sys_perf_counter_open(\n\n\tstruct perf_counter_hw_event\t*hw_event_uptr\t\t__user,\n\tpid_t\t\t\t\tpid,\n\tint\t\t\t\tcpu,\n\tint\t\t\t\tgroup_fd);\n\n( Note that group_fd is unused for now - it\u0027s reserved for the counter\n groups abstraction. )\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "eab656ae04b9d3b83265e3db01c0d2c46b748ef7", "tree": "a8e12bd5a2da6032234dbb20ad2c75766b96c270", "parents": [ "4ac13294e44664bb7edf4daf52edb71e7c6bbe84" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Dec 08 19:26:59 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 11 15:45:46 2008 +0100" }, "message": "perf counters: clean up \u0027raw\u0027 type API\n\nImpact: cleanup\n\nIntroduce a separate hw_event type.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0793a61d4df8daeac6492dbf8d2f3e5713caae5e", "tree": "cc9603eb8daffeb7ace521c42a6a44db164ac551", "parents": [ "b5aa97e83bcc31a96374d18f5452d53909a16c90" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Dec 04 20:12:29 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Dec 08 15:47:03 2008 +0100" }, "message": "performance counters: core code\n\nImplement the core kernel bits of Performance Counters subsystem.\n\nThe Linux Performance Counter subsystem provides an abstraction of\nperformance counter hardware capabilities. It provides per task and per\nCPU counters, and it provides event capabilities on top of those.\n\nPerformance counters are accessed via special file descriptors.\nThere\u0027s one file descriptor per virtual counter used.\n\nThe special file descriptor is opened via the perf_counter_open()\nsystem call:\n\n int\n perf_counter_open(u32 hw_event_type,\n u32 hw_event_period,\n u32 record_type,\n pid_t pid,\n int cpu);\n\nThe syscall returns the new fd. The fd can be used via the normal\nVFS system calls: read() can be used to read the counter, fcntl()\ncan be used to set the blocking mode, etc.\n\nMultiple counters can be kept open at a time, and the counters\ncan be poll()ed.\n\nSee more details in Documentation/perf-counters.txt.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "de11defebf00007677fb7ee91d9b089b78786fbb", "tree": "8219faf1b7992be77a612e778c2573c55f56cf19", "parents": [ "cf7ee554f3a324e98181b0ea249d9d5be3a0acb8" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Nov 19 15:36:14 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Nov 19 18:49:57 2008 -0800" }, "message": "reintroduce accept4\n\nIntroduce a new accept4() system call. The addition of this system call\nmatches analogous changes in 2.6.27 (dup3(), evenfd2(), signalfd4(),\ninotify_init1(), epoll_create1(), pipe2()) which added new system calls\nthat differed from analogous traditional system calls in adding a flags\nargument that can be used to access additional functionality.\n\nThe accept4() system call is exactly the same as accept(), except that\nit adds a flags bit-mask argument. Two flags are initially implemented.\n(Most of the new system calls in 2.6.27 also had both of these flags.)\n\nSOCK_CLOEXEC causes the close-on-exec (FD_CLOEXEC) flag to be enabled\nfor the new file descriptor returned by accept4(). This is a useful\nsecurity feature to avoid leaking information in a multithreaded\nprogram where one thread is doing an accept() at the same time as\nanother thread is doing a fork() plus exec(). More details here:\nhttp://udrepper.livejournal.com/20407.html \"Secure File Descriptor Handling\",\nUlrich Drepper).\n\nThe other flag is SOCK_NONBLOCK, which causes the O_NONBLOCK flag\nto be enabled on the new open file description created by accept4().\n(This flag is merely a convenience, saving the use of additional calls\nfcntl(F_GETFL) and fcntl (F_SETFL) to achieve the same result.\n\nHere\u0027s a test program. Works on x86-32. Should work on x86-64, but\nI (mtk) don\u0027t have a system to hand to test with.\n\nIt tests accept4() with each of the four possible combinations of\nSOCK_CLOEXEC and SOCK_NONBLOCK set/clear in \u0027flags\u0027, and verifies\nthat the appropriate flags are set on the file descriptor/open file\ndescription returned by accept4().\n\nI tested Ulrich\u0027s patch in this thread by applying against 2.6.28-rc2,\nand it passes according to my test program.\n\n/* test_accept4.c\n\n Copyright (C) 2008, Linux Foundation, written by Michael Kerrisk\n \u003cmtk.manpages@gmail.com\u003e\n\n Licensed under the GNU GPLv2 or later.\n*/\n#define _GNU_SOURCE\n#include \u003cunistd.h\u003e\n#include \u003csys/syscall.h\u003e\n#include \u003csys/socket.h\u003e\n#include \u003cnetinet/in.h\u003e\n#include \u003cstdlib.h\u003e\n#include \u003cfcntl.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cstring.h\u003e\n\n#define PORT_NUM 33333\n\n#define die(msg) do { perror(msg); exit(EXIT_FAILURE); } while (0)\n\n/**********************************************************************/\n\n/* The following is what we need until glibc gets a wrapper for\n accept4() */\n\n/* Flags for socket(), socketpair(), accept4() */\n#ifndef SOCK_CLOEXEC\n#define SOCK_CLOEXEC O_CLOEXEC\n#endif\n#ifndef SOCK_NONBLOCK\n#define SOCK_NONBLOCK O_NONBLOCK\n#endif\n\n#ifdef __x86_64__\n#define SYS_accept4 288\n#elif __i386__\n#define USE_SOCKETCALL 1\n#define SYS_ACCEPT4 18\n#else\n#error \"Sorry -- don\u0027t know the syscall # on this architecture\"\n#endif\n\nstatic int\naccept4(int fd, struct sockaddr *sockaddr, socklen_t *addrlen, int flags)\n{\n printf(\"Calling accept4(): flags \u003d %x\", flags);\n if (flags !\u003d 0) {\n printf(\" (\");\n if (flags \u0026 SOCK_CLOEXEC)\n printf(\"SOCK_CLOEXEC\");\n if ((flags \u0026 SOCK_CLOEXEC) \u0026\u0026 (flags \u0026 SOCK_NONBLOCK))\n printf(\" \");\n if (flags \u0026 SOCK_NONBLOCK)\n printf(\"SOCK_NONBLOCK\");\n printf(\")\");\n }\n printf(\"\\n\");\n\n#if USE_SOCKETCALL\n long args[6];\n\n args[0] \u003d fd;\n args[1] \u003d (long) sockaddr;\n args[2] \u003d (long) addrlen;\n args[3] \u003d flags;\n\n return syscall(SYS_socketcall, SYS_ACCEPT4, args);\n#else\n return syscall(SYS_accept4, fd, sockaddr, addrlen, flags);\n#endif\n}\n\n/**********************************************************************/\n\nstatic int\ndo_test(int lfd, struct sockaddr_in *conn_addr,\n int closeonexec_flag, int nonblock_flag)\n{\n int connfd, acceptfd;\n int fdf, flf, fdf_pass, flf_pass;\n struct sockaddr_in claddr;\n socklen_t addrlen;\n\n printf(\"\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\\n\");\n\n connfd \u003d socket(AF_INET, SOCK_STREAM, 0);\n if (connfd \u003d\u003d -1)\n die(\"socket\");\n if (connect(connfd, (struct sockaddr *) conn_addr,\n sizeof(struct sockaddr_in)) \u003d\u003d -1)\n die(\"connect\");\n\n addrlen \u003d sizeof(struct sockaddr_in);\n acceptfd \u003d accept4(lfd, (struct sockaddr *) \u0026claddr, \u0026addrlen,\n closeonexec_flag | nonblock_flag);\n if (acceptfd \u003d\u003d -1) {\n perror(\"accept4()\");\n close(connfd);\n return 0;\n }\n\n fdf \u003d fcntl(acceptfd, F_GETFD);\n if (fdf \u003d\u003d -1)\n die(\"fcntl:F_GETFD\");\n fdf_pass \u003d ((fdf \u0026 FD_CLOEXEC) !\u003d 0) \u003d\u003d\n ((closeonexec_flag \u0026 SOCK_CLOEXEC) !\u003d 0);\n printf(\"Close-on-exec flag is %sset (%s); \",\n (fdf \u0026 FD_CLOEXEC) ? \"\" : \"not \",\n fdf_pass ? \"OK\" : \"failed\");\n\n flf \u003d fcntl(acceptfd, F_GETFL);\n if (flf \u003d\u003d -1)\n die(\"fcntl:F_GETFD\");\n flf_pass \u003d ((flf \u0026 O_NONBLOCK) !\u003d 0) \u003d\u003d\n ((nonblock_flag \u0026 SOCK_NONBLOCK) !\u003d0);\n printf(\"nonblock flag is %sset (%s)\\n\",\n (flf \u0026 O_NONBLOCK) ? \"\" : \"not \",\n flf_pass ? \"OK\" : \"failed\");\n\n close(acceptfd);\n close(connfd);\n\n printf(\"Test result: %s\\n\", (fdf_pass \u0026\u0026 flf_pass) ? \"PASS\" : \"FAIL\");\n return fdf_pass \u0026\u0026 flf_pass;\n}\n\nstatic int\ncreate_listening_socket(int port_num)\n{\n struct sockaddr_in svaddr;\n int lfd;\n int optval;\n\n memset(\u0026svaddr, 0, sizeof(struct sockaddr_in));\n svaddr.sin_family \u003d AF_INET;\n svaddr.sin_addr.s_addr \u003d htonl(INADDR_ANY);\n svaddr.sin_port \u003d htons(port_num);\n\n lfd \u003d socket(AF_INET, SOCK_STREAM, 0);\n if (lfd \u003d\u003d -1)\n die(\"socket\");\n\n optval \u003d 1;\n if (setsockopt(lfd, SOL_SOCKET, SO_REUSEADDR, \u0026optval,\n sizeof(optval)) \u003d\u003d -1)\n die(\"setsockopt\");\n\n if (bind(lfd, (struct sockaddr *) \u0026svaddr,\n sizeof(struct sockaddr_in)) \u003d\u003d -1)\n die(\"bind\");\n\n if (listen(lfd, 5) \u003d\u003d -1)\n die(\"listen\");\n\n return lfd;\n}\n\nint\nmain(int argc, char *argv[])\n{\n struct sockaddr_in conn_addr;\n int lfd;\n int port_num;\n int passed;\n\n passed \u003d 1;\n\n port_num \u003d (argc \u003e 1) ? atoi(argv[1]) : PORT_NUM;\n\n memset(\u0026conn_addr, 0, sizeof(struct sockaddr_in));\n conn_addr.sin_family \u003d AF_INET;\n conn_addr.sin_addr.s_addr \u003d htonl(INADDR_LOOPBACK);\n conn_addr.sin_port \u003d htons(port_num);\n\n lfd \u003d create_listening_socket(port_num);\n\n if (!do_test(lfd, \u0026conn_addr, 0, 0))\n passed \u003d 0;\n if (!do_test(lfd, \u0026conn_addr, SOCK_CLOEXEC, 0))\n passed \u003d 0;\n if (!do_test(lfd, \u0026conn_addr, 0, SOCK_NONBLOCK))\n passed \u003d 0;\n if (!do_test(lfd, \u0026conn_addr, SOCK_CLOEXEC, SOCK_NONBLOCK))\n passed \u003d 0;\n\n close(lfd);\n\n exit(passed ? EXIT_SUCCESS : EXIT_FAILURE);\n}\n\n[mtk.manpages@gmail.com: rewrote changelog, updated test program]\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nTested-by: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nAcked-by: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nCc: \u003clinux-api@vger.kernel.org\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b4615e69b6c6353878b734a8202b65efbc554df4", "tree": "b1ea3503d4dd3c979f10af7e74bd7bde27764ce8", "parents": [ "ff5d48a6d18d09bb750d1f89f6464f5fdb6fc85b" ], "author": { "name": "Harvey Harrison", "email": "harvey.harrison@gmail.com", "time": "Fri Jul 25 13:19:22 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 17:28:49 2008 -0700" }, "message": "sys_paccept definition missing __user annotation\n\nIntroduced by commit aaca0bdca573f3f51ea03139f9c7289541e7bca3 (\"flag\nparameters: paccept\"):\n\n net/socket.c:1515:17: error: symbol \u0027sys_paccept\u0027 redeclared with different type (originally declared at include/linux/syscalls.h:413) - incompatible argument 4 (different address spaces)\n\nSigned-off-by: Harvey Harrison \u003charvey.harrison@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9fe5ad9c8cef9ad5873d8ee55d1cf00d9b607df0", "tree": "49fb04cf552192e566d2aa6e18f40585230cba5a", "parents": [ "e38b36f325153eaadd1c2a7abc5762079233e540" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:43 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:29 2008 -0700" }, "message": "flag parameters add-on: remove epoll_create size param\n\nRemove the size parameter from the new epoll_create syscall and renames the\nsyscall itself. The updated test program follows.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cfcntl.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003ctime.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_epoll_create2\n# ifdef __x86_64__\n# define __NR_epoll_create2 291\n# elif defined __i386__\n# define __NR_epoll_create2 329\n# else\n# error \"need __NR_epoll_create2\"\n# endif\n#endif\n\n#define EPOLL_CLOEXEC O_CLOEXEC\n\nint\nmain (void)\n{\n int fd \u003d syscall (__NR_epoll_create2, 0);\n if (fd \u003d\u003d -1)\n {\n puts (\"epoll_create2(0) failed\");\n return 1;\n }\n int coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if (coe \u0026 FD_CLOEXEC)\n {\n puts (\"epoll_create2(0) set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n fd \u003d syscall (__NR_epoll_create2, EPOLL_CLOEXEC);\n if (fd \u003d\u003d -1)\n {\n puts (\"epoll_create2(EPOLL_CLOEXEC) failed\");\n return 1;\n }\n coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if ((coe \u0026 FD_CLOEXEC) \u003d\u003d 0)\n {\n puts (\"epoll_create2(EPOLL_CLOEXEC) set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4006553b06306b34054529477b06b68a1c66249b", "tree": "d4ebbe4a5294b0cec69fe4908b7b7c569f4ece03", "parents": [ "ed8cae8ba01348bfd83333f4648dd807b04d7f08" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:32 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:28 2008 -0700" }, "message": "flag parameters: inotify_init\n\nThis patch introduces the new syscall inotify_init1 (note: the 1 stands for\nthe one parameter the syscall takes, as opposed to no parameter before). The\nvalues accepted for this parameter are function-specific and defined in the\ninotify.h header. Here the values must match the O_* flags, though. In this\npatch CLOEXEC support is introduced.\n\nThe following test must be adjusted for architectures other than x86 and\nx86-64 and in case the syscall numbers changed.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cfcntl.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_inotify_init1\n# ifdef __x86_64__\n# define __NR_inotify_init1 294\n# elif defined __i386__\n# define __NR_inotify_init1 332\n# else\n# error \"need __NR_inotify_init1\"\n# endif\n#endif\n\n#define IN_CLOEXEC O_CLOEXEC\n\nint\nmain (void)\n{\n int fd;\n fd \u003d syscall (__NR_inotify_init1, 0);\n if (fd \u003d\u003d -1)\n {\n puts (\"inotify_init1(0) failed\");\n return 1;\n }\n int coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if (coe \u0026 FD_CLOEXEC)\n {\n puts (\"inotify_init1(0) set close-on-exit\");\n return 1;\n }\n close (fd);\n\n fd \u003d syscall (__NR_inotify_init1, IN_CLOEXEC);\n if (fd \u003d\u003d -1)\n {\n puts (\"inotify_init1(IN_CLOEXEC) failed\");\n return 1;\n }\n coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if ((coe \u0026 FD_CLOEXEC) \u003d\u003d 0)\n {\n puts (\"inotify_init1(O_CLOEXEC) does not set close-on-exit\");\n return 1;\n }\n close (fd);\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n[akpm@linux-foundation.org: add sys_ni stub]\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "336dd1f70ff62d7dd8655228caed4c5bfc818c56", "tree": "1441b76ea5f08f44167f41867f3555ac53712ebb", "parents": [ "a0998b50c3f0b8fdd265c63e0032f86ebe377dbf" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:28 2008 -0700" }, "message": "flag parameters: dup2\n\nThis patch adds the new dup3 syscall. It extends the old dup2 syscall by one\nparameter which is meant to hold a flag value. Support for the O_CLOEXEC flag\nis added in this patch.\n\nThe following test must be adjusted for architectures other than x86 and\nx86-64 and in case the syscall numbers changed.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cfcntl.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003ctime.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_dup3\n# ifdef __x86_64__\n# define __NR_dup3 292\n# elif defined __i386__\n# define __NR_dup3 330\n# else\n# error \"need __NR_dup3\"\n# endif\n#endif\n\nint\nmain (void)\n{\n int fd \u003d syscall (__NR_dup3, 1, 4, 0);\n if (fd \u003d\u003d -1)\n {\n puts (\"dup3(0) failed\");\n return 1;\n }\n int coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if (coe \u0026 FD_CLOEXEC)\n {\n puts (\"dup3(0) set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n fd \u003d syscall (__NR_dup3, 1, 4, O_CLOEXEC);\n if (fd \u003d\u003d -1)\n {\n puts (\"dup3(O_CLOEXEC) failed\");\n return 1;\n }\n coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if ((coe \u0026 FD_CLOEXEC) \u003d\u003d 0)\n {\n puts (\"dup3(O_CLOEXEC) set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a0998b50c3f0b8fdd265c63e0032f86ebe377dbf", "tree": "9132ecb7ef925374edabcaeea44e0287eb5043f4", "parents": [ "11fcb6c14676023d0bd437841f5dcd670e7990a0" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:27 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:28 2008 -0700" }, "message": "flag parameters: epoll_create\n\nThis patch adds the new epoll_create2 syscall. It extends the old epoll_create\nsyscall by one parameter which is meant to hold a flag value. In this\npatch the only flag support is EPOLL_CLOEXEC which causes the close-on-exec\nflag for the returned file descriptor to be set.\n\nA new name EPOLL_CLOEXEC is introduced which in this implementation must\nhave the same value as O_CLOEXEC.\n\nThe following test must be adjusted for architectures other than x86 and\nx86-64 and in case the syscall numbers changed.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cfcntl.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003ctime.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_epoll_create2\n# ifdef __x86_64__\n# define __NR_epoll_create2 291\n# elif defined __i386__\n# define __NR_epoll_create2 329\n# else\n# error \"need __NR_epoll_create2\"\n# endif\n#endif\n\n#define EPOLL_CLOEXEC O_CLOEXEC\n\nint\nmain (void)\n{\n int fd \u003d syscall (__NR_epoll_create2, 1, 0);\n if (fd \u003d\u003d -1)\n {\n puts (\"epoll_create2(0) failed\");\n return 1;\n }\n int coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if (coe \u0026 FD_CLOEXEC)\n {\n puts (\"epoll_create2(0) set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n fd \u003d syscall (__NR_epoll_create2, 1, EPOLL_CLOEXEC);\n if (fd \u003d\u003d -1)\n {\n puts (\"epoll_create2(EPOLL_CLOEXEC) failed\");\n return 1;\n }\n coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if ((coe \u0026 FD_CLOEXEC) \u003d\u003d 0)\n {\n puts (\"epoll_create2(EPOLL_CLOEXEC) set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b087498eb5605673b0f260a7620d91818cd72304", "tree": "977d9dbcd326a9582dfc5ad000995d26886c872e", "parents": [ "9deb27baedb79759c3ab9435a7d8b841842d56e9" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:25 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:27 2008 -0700" }, "message": "flag parameters: eventfd\n\nThis patch adds the new eventfd2 syscall. It extends the old eventfd\nsyscall by one parameter which is meant to hold a flag value. In this\npatch the only flag support is EFD_CLOEXEC which causes the close-on-exec\nflag for the returned file descriptor to be set.\n\nA new name EFD_CLOEXEC is introduced which in this implementation must\nhave the same value as O_CLOEXEC.\n\nThe following test must be adjusted for architectures other than x86 and\nx86-64 and in case the syscall numbers changed.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cfcntl.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_eventfd2\n# ifdef __x86_64__\n# define __NR_eventfd2 290\n# elif defined __i386__\n# define __NR_eventfd2 328\n# else\n# error \"need __NR_eventfd2\"\n# endif\n#endif\n\n#define EFD_CLOEXEC O_CLOEXEC\n\nint\nmain (void)\n{\n int fd \u003d syscall (__NR_eventfd2, 1, 0);\n if (fd \u003d\u003d -1)\n {\n puts (\"eventfd2(0) failed\");\n return 1;\n }\n int coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if (coe \u0026 FD_CLOEXEC)\n {\n puts (\"eventfd2(0) sets close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n fd \u003d syscall (__NR_eventfd2, 1, EFD_CLOEXEC);\n if (fd \u003d\u003d -1)\n {\n puts (\"eventfd2(EFD_CLOEXEC) failed\");\n return 1;\n }\n coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if ((coe \u0026 FD_CLOEXEC) \u003d\u003d 0)\n {\n puts (\"eventfd2(EFD_CLOEXEC) does not set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n[akpm@linux-foundation.org: add sys_ni stub]\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9deb27baedb79759c3ab9435a7d8b841842d56e9", "tree": "1c88393ba30db851ca0bb93c4e656d4e5dbb22b9", "parents": [ "7d9dbca34240ebb6ff88d8a29c6c7bffd098f0c1" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:24 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:27 2008 -0700" }, "message": "flag parameters: signalfd\n\nThis patch adds the new signalfd4 syscall. It extends the old signalfd\nsyscall by one parameter which is meant to hold a flag value. In this\npatch the only flag support is SFD_CLOEXEC which causes the close-on-exec\nflag for the returned file descriptor to be set.\n\nA new name SFD_CLOEXEC is introduced which in this implementation must\nhave the same value as O_CLOEXEC.\n\nThe following test must be adjusted for architectures other than x86 and\nx86-64 and in case the syscall numbers changed.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cfcntl.h\u003e\n#include \u003csignal.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_signalfd4\n# ifdef __x86_64__\n# define __NR_signalfd4 289\n# elif defined __i386__\n# define __NR_signalfd4 327\n# else\n# error \"need __NR_signalfd4\"\n# endif\n#endif\n\n#define SFD_CLOEXEC O_CLOEXEC\n\nint\nmain (void)\n{\n sigset_t ss;\n sigemptyset (\u0026ss);\n sigaddset (\u0026ss, SIGUSR1);\n int fd \u003d syscall (__NR_signalfd4, -1, \u0026ss, 8, 0);\n if (fd \u003d\u003d -1)\n {\n puts (\"signalfd4(0) failed\");\n return 1;\n }\n int coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if (coe \u0026 FD_CLOEXEC)\n {\n puts (\"signalfd4(0) set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n fd \u003d syscall (__NR_signalfd4, -1, \u0026ss, 8, SFD_CLOEXEC);\n if (fd \u003d\u003d -1)\n {\n puts (\"signalfd4(SFD_CLOEXEC) failed\");\n return 1;\n }\n coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if ((coe \u0026 FD_CLOEXEC) \u003d\u003d 0)\n {\n puts (\"signalfd4(SFD_CLOEXEC) does not set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n[akpm@linux-foundation.org: add sys_ni stub]\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "aaca0bdca573f3f51ea03139f9c7289541e7bca3", "tree": "d25b0baa73b5301d91a5c848a896bad0fb719acc", "parents": [ "a677a039be7243357d93502bff2b40850c942e2d" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:20 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:27 2008 -0700" }, "message": "flag parameters: paccept\n\nThis patch is by far the most complex in the series. It adds a new syscall\npaccept. This syscall differs from accept in that it adds (at the userlevel)\ntwo additional parameters:\n\n- a signal mask\n- a flags value\n\nThe flags parameter can be used to set flag like SOCK_CLOEXEC. This is\nimlpemented here as well. Some people argued that this is a property which\nshould be inherited from the file desriptor for the server but this is against\nPOSIX. Additionally, we really want the signal mask parameter as well\n(similar to pselect, ppoll, etc). So an interface change in inevitable.\n\nThe flag value is the same as for socket and socketpair. I think diverging\nhere will only create confusion. Similar to the filesystem interfaces where\nthe use of the O_* constants differs, it is acceptable here.\n\nThe signal mask is handled as for pselect etc. The mask is temporarily\ninstalled for the thread and removed before the call returns. I modeled the\ncode after pselect. If there is a problem it\u0027s likely also in pselect.\n\nFor architectures which use socketcall I maintained this interface instead of\nadding a system call. The symmetry shouldn\u0027t be broken.\n\nThe following test must be adjusted for architectures other than x86 and\nx86-64 and in case the syscall numbers changed.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cerrno.h\u003e\n#include \u003cfcntl.h\u003e\n#include \u003cpthread.h\u003e\n#include \u003csignal.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003cnetinet/in.h\u003e\n#include \u003csys/socket.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_paccept\n# ifdef __x86_64__\n# define __NR_paccept 288\n# elif defined __i386__\n# define SYS_PACCEPT 18\n# define USE_SOCKETCALL 1\n# else\n# error \"need __NR_paccept\"\n# endif\n#endif\n\n#ifdef USE_SOCKETCALL\n# define paccept(fd, addr, addrlen, mask, flags) \\\n ({ long args[6] \u003d { \\\n (long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \\\n syscall (__NR_socketcall, SYS_PACCEPT, args); })\n#else\n# define paccept(fd, addr, addrlen, mask, flags) \\\n syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)\n#endif\n\n#define PORT 57392\n\n#define SOCK_CLOEXEC O_CLOEXEC\n\nstatic pthread_barrier_t b;\n\nstatic void *\ntf (void *arg)\n{\n pthread_barrier_wait (\u0026b);\n int s \u003d socket (AF_INET, SOCK_STREAM, 0);\n struct sockaddr_in sin;\n sin.sin_family \u003d AF_INET;\n sin.sin_addr.s_addr \u003d htonl (INADDR_LOOPBACK);\n sin.sin_port \u003d htons (PORT);\n connect (s, (const struct sockaddr *) \u0026sin, sizeof (sin));\n close (s);\n\n pthread_barrier_wait (\u0026b);\n s \u003d socket (AF_INET, SOCK_STREAM, 0);\n sin.sin_port \u003d htons (PORT);\n connect (s, (const struct sockaddr *) \u0026sin, sizeof (sin));\n close (s);\n pthread_barrier_wait (\u0026b);\n\n pthread_barrier_wait (\u0026b);\n sleep (2);\n pthread_kill ((pthread_t) arg, SIGUSR1);\n\n return NULL;\n}\n\nstatic void\nhandler (int s)\n{\n}\n\nint\nmain (void)\n{\n pthread_barrier_init (\u0026b, NULL, 2);\n\n struct sockaddr_in sin;\n pthread_t th;\n if (pthread_create (\u0026th, NULL, tf, (void *) pthread_self ()) !\u003d 0)\n {\n puts (\"pthread_create failed\");\n return 1;\n }\n\n int s \u003d socket (AF_INET, SOCK_STREAM, 0);\n int reuse \u003d 1;\n setsockopt (s, SOL_SOCKET, SO_REUSEADDR, \u0026reuse, sizeof (reuse));\n sin.sin_family \u003d AF_INET;\n sin.sin_addr.s_addr \u003d htonl (INADDR_LOOPBACK);\n sin.sin_port \u003d htons (PORT);\n bind (s, (struct sockaddr *) \u0026sin, sizeof (sin));\n listen (s, SOMAXCONN);\n\n pthread_barrier_wait (\u0026b);\n\n int s2 \u003d paccept (s, NULL, 0, NULL, 0);\n if (s2 \u003c 0)\n {\n puts (\"paccept(0) failed\");\n return 1;\n }\n\n int coe \u003d fcntl (s2, F_GETFD);\n if (coe \u0026 FD_CLOEXEC)\n {\n puts (\"paccept(0) set close-on-exec-flag\");\n return 1;\n }\n close (s2);\n\n pthread_barrier_wait (\u0026b);\n\n s2 \u003d paccept (s, NULL, 0, NULL, SOCK_CLOEXEC);\n if (s2 \u003c 0)\n {\n puts (\"paccept(SOCK_CLOEXEC) failed\");\n return 1;\n }\n\n coe \u003d fcntl (s2, F_GETFD);\n if ((coe \u0026 FD_CLOEXEC) \u003d\u003d 0)\n {\n puts (\"paccept(SOCK_CLOEXEC) does not set close-on-exec flag\");\n return 1;\n }\n close (s2);\n\n pthread_barrier_wait (\u0026b);\n\n struct sigaction sa;\n sa.sa_handler \u003d handler;\n sa.sa_flags \u003d 0;\n sigemptyset (\u0026sa.sa_mask);\n sigaction (SIGUSR1, \u0026sa, NULL);\n\n sigset_t ss;\n pthread_sigmask (SIG_SETMASK, NULL, \u0026ss);\n sigaddset (\u0026ss, SIGUSR1);\n pthread_sigmask (SIG_SETMASK, \u0026ss, NULL);\n\n sigdelset (\u0026ss, SIGUSR1);\n alarm (4);\n pthread_barrier_wait (\u0026b);\n\n errno \u003d 0 ;\n s2 \u003d paccept (s, NULL, 0, \u0026ss, 0);\n if (s2 !\u003d -1 || errno !\u003d EINTR)\n {\n puts (\"paccept did not fail with EINTR\");\n return 1;\n }\n\n close (s);\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n[akpm@linux-foundation.org: make it compile]\n[akpm@linux-foundation.org: add sys_ni stub]\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f606ddf42fd4edc558eeb48bfee66d2c591571d2", "tree": "193f00db121201255b2629fce43b99a53c4ec735", "parents": [ "99764fa4ceeecba8b9e0a8a5565b418a2e94f83b" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Wed Jul 23 21:28:50 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:24 2008 -0700" }, "message": "remove the v850 port\n\nTrying to compile the v850 port brings many compile errors, one of them exists\nsince at least kernel 2.6.19.\n\nThere also seems to be noone willing to bring this port back into a usable\nstate.\n\nThis patch therefore removes the v850 port.\n\nIf anyone ever decides to revive the v850 port the code will still be\navailable from older kernels, and it wouldn\u0027t be impossible for the port to\nreenter the kernel if it would become actively maintained again.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nAcked-by: Greg Ungerer \u003cgerg@uclinux.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8f0cfa52a1d4ffacd8e7de906d19662f5da58d58", "tree": "2aa82e3682e75330d9b5d601855e3af3c57c03d8", "parents": [ "7ec02ef1596bb3c829a7e8b65ebf13b87faf1819" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Tue Apr 29 00:59:41 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 29 08:06:06 2008 -0700" }, "message": "xattr: add missing consts to function arguments\n\nAdd missing consts to xattr function arguments.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Andreas Gruenbacher \u003cagruen@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5a6483feb0c5193519625d0ea8c4254364d423cc", "tree": "2235220e522882ac5872937fa43d3d1b188c1f4e", "parents": [ "cb688371e27880d86c42323826846d1cd7caad8f" ], "author": { "name": "Matthew Wilcox", "email": "matthew@wil.cx", "time": "Tue Feb 26 10:00:17 2008 -0500" }, "committer": { "name": "Matthew Wilcox", "email": "willy@linux.intel.com", "time": "Fri Apr 18 22:16:54 2008 -0400" }, "message": "include: Remove unnecessary inclusions of asm/semaphore.h\n\nNone of these files use any of the functionality promised by\nasm/semaphore.h. It\u0027s possible that they (or some user of them) rely\non it dragging in some unrelated header file, but I can\u0027t build all\nthese files, so we\u0027ll have to fix any build failures as they come up.\n\nSigned-off-by: Matthew Wilcox \u003cwilly@linux.intel.com\u003e\n" }, { "commit": "4d672e7ac79b5ec5cdc90e450823441e20464691", "tree": "66da3aa0bf7f7ac80376a93f17edbb2246b2df06", "parents": [ "5e05ad7d4e3b11f935998882b5d9c3b257137f1b" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Mon Feb 04 22:27:26 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:07 2008 -0800" }, "message": "timerfd: new timerfd API\n\nThis is the new timerfd API as it is implemented by the following patch:\n\nint timerfd_create(int clockid, int flags);\nint timerfd_settime(int ufd, int flags,\n\t\t const struct itimerspec *utmr,\n\t\t struct itimerspec *otmr);\nint timerfd_gettime(int ufd, struct itimerspec *otmr);\n\nThe timerfd_create() API creates an un-programmed timerfd fd. The \"clockid\"\nparameter can be either CLOCK_MONOTONIC or CLOCK_REALTIME.\n\nThe timerfd_settime() API give new settings by the timerfd fd, by optionally\nretrieving the previous expiration time (in case the \"otmr\" parameter is not\nNULL).\n\nThe time value specified in \"utmr\" is absolute, if the TFD_TIMER_ABSTIME bit\nis set in the \"flags\" parameter. Otherwise it\u0027s a relative time.\n\nThe timerfd_gettime() API returns the next expiration time of the timer, or\n{0, 0} if the timerfd has not been set yet.\n\nLike the previous timerfd API implementation, read(2) and poll(2) are\nsupported (with the same interface). Here\u0027s a simple test program I used to\nexercise the new timerfd APIs:\n\nhttp://www.xmailserver.org/timerfd-test2.c\n\n[akpm@linux-foundation.org: coding-style cleanups]\n[akpm@linux-foundation.org: fix ia64 build]\n[akpm@linux-foundation.org: fix m68k build]\n[akpm@linux-foundation.org: fix mips build]\n[akpm@linux-foundation.org: fix alpha, arm, blackfin, cris, m68k, s390, sparc and sparc64 builds]\n[heiko.carstens@de.ibm.com: fix s390]\n[akpm@linux-foundation.org: fix powerpc build]\n[akpm@linux-foundation.org: fix sparc64 more]\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nCc: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8e68e2f248332a9c3fd4f08258f488c209bd3e0c", "tree": "3001a5a8ce652ffdea97b2f89569447830b9059a", "parents": [ "3ad216cae837d90415c605e1149e6fd88f51c973" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Fri Jul 20 21:39:47 2007 +0200" }, "committer": { "name": "Arnd Bergmann", "email": "arnd@klappe.arndb.de", "time": "Fri Jul 20 21:42:15 2007 +0200" }, "message": "[CELL] spufs: extension of spu_create to support affinity definition\n\nThis patch adds support for additional flags at spu_create, which relate\nto the establishment of affinity between contexts and contexts to memory.\nA fourth, optional, parameter is supported. This parameter represent\na affinity neighbor of the context being created, and is used when defining\nSPU-SPU affinity.\nAffinity is represented as a doubly linked list of spu_contexts.\n\nSigned-off-by: Andre Detsch \u003cadetsch@br.ibm.com\u003e\nSigned-off-by: Arnd Bergmann \u003carnd.bergmann@de.ibm.com\u003e\n" }, { "commit": "97ac73506c0ba93f30239bb57b4cfc5d73e68a62", "tree": "4d02848d6c792a70b413deadcaffd7bf8c8d61de", "parents": [ "cb32da0416b823b7f4b65e7e85d6cba16ca4d1e1" ], "author": { "name": "Amit Arora", "email": "aarora@in.ibm.com", "time": "Tue Jul 17 21:42:44 2007 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Tue Jul 17 21:42:44 2007 -0400" }, "message": "sys_fallocate() implementation on i386, x86_64 and powerpc\n\nfallocate() is a new system call being proposed here which will allow\napplications to preallocate space to any file(s) in a file system.\nEach file system implementation that wants to use this feature will need\nto support an inode operation called -\u003efallocate().\nApplications can use this feature to avoid fragmentation to certain\nlevel and thus get faster access speed. With preallocation, applications\nalso get a guarantee of space for particular file(s) - even if later the\nthe system becomes full.\n\nCurrently, glibc provides an interface called posix_fallocate() which\ncan be used for similar cause. Though this has the advantage of working\non all file systems, but it is quite slow (since it writes zeroes to\neach block that has to be preallocated). Without a doubt, file systems\ncan do this more efficiently within the kernel, by implementing\nthe proposed fallocate() system call. It is expected that\nposix_fallocate() will be modified to call this new system call first\nand incase the kernel/filesystem does not implement it, it should fall\nback to the current implementation of writing zeroes to the new blocks.\nToDos:\n1. Implementation on other architectures (other than i386, x86_64,\n and ppc). Patches for s390(x) and ia64 are already available from\n previous posts, but it was decided that they should be added later\n once fallocate is in the mainline. Hence not including those patches\n in this take.\n2. Changes to glibc,\n a) to support fallocate() system call\n b) to make posix_fallocate() and posix_fallocate64() call fallocate()\n\nSigned-off-by: Amit Arora \u003caarora@in.ibm.com\u003e\n" }, { "commit": "edd5cd4a9424f22b0fa08bef5e299d41befd5622", "tree": "dba461b19b066c862a2c4e443b2deb9443bc78c5", "parents": [ "2f4d4da8f82c2598b8713f4a01f360f3751d90be" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Wed Jun 27 14:10:09 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Jun 28 11:38:30 2007 -0700" }, "message": "Introduce fixed sys_sync_file_range2() syscall, implement on PowerPC and ARM\n\nNot all the world is an i386. Many architectures need 64-bit arguments to be\naligned in suitable pairs of registers, and the original\nsys_sync_file_range(int, loff_t, loff_t, int) was therefore wasting an\nargument register for padding after the first integer. Since we don\u0027t\nnormally have more than 6 arguments for system calls, that left no room for\nthe final argument on some architectures.\n\nFix this by introducing sys_sync_file_range2(int, int, loff_t, loff_t) which\nall fits nicely. In fact, ARM already had that, but called it\nsys_arm_sync_file_range. Move it to fs/sync.c and rename it, then implement\nthe needed compatibility routine. And stop the missing syscall check from\nbitching about the absence of sys_sync_file_range() if we\u0027ve implemented\nsys_sync_file_range2() instead.\n\nTested on PPC32 and with 32-bit and 64-bit userspace on PPC64.\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\nAcked-by: Russell King \u003crmk+kernel@arm.linux.org.uk\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e1ad7468c77ddb94b0615d5f50fa255525fde0f0", "tree": "856be1a028fece7e1fa10b7b585096839913fe2e", "parents": [ "83f5d1266926c75890f1bc4678e49d79483cb573" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Thu May 10 22:23:19 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri May 11 08:29:36 2007 -0700" }, "message": "signal/timer/event: eventfd core\n\nThis is a very simple and light file descriptor, that can be used as event\nwait/dispatch by userspace (both wait and dispatch) and by the kernel\n(dispatch only). It can be used instead of pipe(2) in all cases where those\nwould simply be used to signal events. Their kernel overhead is much lower\nthan pipes, and they do not consume two fds. When used in the kernel, it can\noffer an fd-bridge to enable, for example, functionalities like KAIO or\nsyslets/threadlets to signal to an fd the completion of certain operations.\nBut more in general, an eventfd can be used by the kernel to signal readiness,\nin a POSIX poll/select way, of interfaces that would otherwise be incompatible\nwith it. The API is:\n\nint eventfd(unsigned int count);\n\nThe eventfd API accepts an initial \"count\" parameter, and returns an eventfd\nfd. It supports poll(2) (POLLIN, POLLOUT, POLLERR), read(2) and write(2).\n\nThe POLLIN flag is raised when the internal counter is greater than zero.\n\nThe POLLOUT flag is raised when at least a value of \"1\" can be written to the\ninternal counter.\n\nThe POLLERR flag is raised when an overflow in the counter value is detected.\n\nThe write(2) operation can never overflow the counter, since it blocks (unless\nO_NONBLOCK is set, in which case -EAGAIN is returned).\n\nBut the eventfd_signal() function can do it, since it\u0027s supposed to not sleep\nduring its operation.\n\nThe read(2) function reads the __u64 counter value, and reset the internal\nvalue to zero. If the value read is equal to (__u64) -1, an overflow happened\non the internal counter (due to 2^64 eventfd_signal() posts that has never\nbeen retired - unlickely, but possible).\n\nThe write(2) call writes an __u64 count value, and adds it to the current\ncounter. The eventfd fd supports O_NONBLOCK also.\n\nOn the kernel side, we have:\n\nstruct file *eventfd_fget(int fd);\nint eventfd_signal(struct file *file, unsigned int n);\n\nThe eventfd_fget() should be called to get a struct file* from an eventfd fd\n(this is an fget() + check of f_op being an eventfd fops pointer).\n\nThe kernel can then call eventfd_signal() every time it wants to post an event\nto userspace. The eventfd_signal() function can be called from any context.\nAn eventfd() simple test and bench is available here:\n\nhttp://www.xmailserver.org/eventfd-bench.c\n\nThis is the eventfd-based version of pipetest-4 (pipe(2) based):\n\nhttp://www.xmailserver.org/pipetest-4.c\n\nNot that performance matters much in the eventfd case, but eventfd-bench\nshows almost as double as performance than pipetest-4.\n\n[akpm@linux-foundation.org: fix i386 build]\n[akpm@linux-foundation.org: add sys_eventfd to sys_ni.c]\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b215e283992899650c4271e7385c79e26fb9a88e", "tree": "3f950814510422606821f1b0b373d65e4d9ed303", "parents": [ "6d18c9220965b437287c3a7e803725c24992ceac" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Thu May 10 22:23:16 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri May 11 08:29:36 2007 -0700" }, "message": "signal/timer/event: timerfd core\n\nThis patch introduces a new system call for timers events delivered though\nfile descriptors. This allows timer event to be used with standard POSIX\npoll(2), select(2) and read(2). As a consequence of supporting the Linux\nf_op-\u003epoll subsystem, they can be used with epoll(2) too.\n\nThe system call is defined as:\n\nint timerfd(int ufd, int clockid, int flags, const struct itimerspec *utmr);\n\nThe \"ufd\" parameter allows for re-use (re-programming) of an existing timerfd\nw/out going through the close/open cycle (same as signalfd). If \"ufd\" is -1,\ns new file descriptor will be created, otherwise the existing \"ufd\" will be\nre-programmed.\n\nThe \"clockid\" parameter is either CLOCK_MONOTONIC or CLOCK_REALTIME. The time\nspecified in the \"utmr-\u003eit_value\" parameter is the expiry time for the timer.\n\nIf the TFD_TIMER_ABSTIME flag is set in \"flags\", this is an absolute time,\notherwise it\u0027s a relative time.\n\nIf the time specified in the \"utmr-\u003eit_interval\" is not zero (.tv_sec \u003d\u003d 0,\ntv_nsec \u003d\u003d 0), this is the period at which the following ticks should be\ngenerated.\n\nThe \"utmr-\u003eit_interval\" should be set to zero if only one tick is requested.\nSetting the \"utmr-\u003eit_value\" to zero will disable the timer, or will create a\ntimerfd without the timer enabled.\n\nThe function returns the new (or same, in case \"ufd\" is a valid timerfd\ndescriptor) file, or -1 in case of error.\n\nAs stated before, the timerfd file descriptor supports poll(2), select(2) and\nepoll(2). When a timer event happened on the timerfd, a POLLIN mask will be\nreturned.\n\nThe read(2) call can be used, and it will return a u32 variable holding the\nnumber of \"ticks\" that happened on the interface since the last call to\nread(2). The read(2) call supportes the O_NONBLOCK flag too, and EAGAIN will\nbe returned if no ticks happened.\n\nA quick test program, shows timerfd working correctly on my amd64 box:\n\nhttp://www.xmailserver.org/timerfd-test.c\n\n[akpm@linux-foundation.org: add sys_timerfd to sys_ni.c]\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fba2afaaec790dc5ab4ae8827972f342211bbb86", "tree": "2694d4cd8c6b7d69a5569b92151d61a3d4af39b7", "parents": [ "5dc8bf8132d59c03fe2562bce165c2f03f021687" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Thu May 10 22:23:13 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri May 11 08:29:36 2007 -0700" }, "message": "signal/timer/event: signalfd core\n\nThis patch series implements the new signalfd() system call.\n\nI took part of the original Linus code (and you know how badly it can be\nbroken :), and I added even more breakage ;) Signals are fetched from the same\nsignal queue used by the process, so signalfd will compete with standard\nkernel delivery in dequeue_signal(). If you want to reliably fetch signals on\nthe signalfd file, you need to block them with sigprocmask(SIG_BLOCK). This\nseems to be working fine on my Dual Opteron machine. I made a quick test\nprogram for it:\n\nhttp://www.xmailserver.org/signafd-test.c\n\nThe signalfd() system call implements signal delivery into a file descriptor\nreceiver. The signalfd file descriptor if created with the following API:\n\nint signalfd(int ufd, const sigset_t *mask, size_t masksize);\n\nThe \"ufd\" parameter allows to change an existing signalfd sigmask, w/out going\nto close/create cycle (Linus idea). Use \"ufd\" \u003d\u003d -1 if you want a brand new\nsignalfd file.\n\nThe \"mask\" allows to specify the signal mask of signals that we are interested\nin. The \"masksize\" parameter is the size of \"mask\".\n\nThe signalfd fd supports the poll(2) and read(2) system calls. The poll(2)\nwill return POLLIN when signals are available to be dequeued. As a direct\nconsequence of supporting the Linux poll subsystem, the signalfd fd can use\nused together with epoll(2) too.\n\nThe read(2) system call will return a \"struct signalfd_siginfo\" structure in\nthe userspace supplied buffer. The return value is the number of bytes copied\nin the supplied buffer, or -1 in case of error. The read(2) call can also\nreturn 0, in case the sighand structure to which the signalfd was attached,\nhas been orphaned. The O_NONBLOCK flag is also supported, and read(2) will\nreturn -EAGAIN in case no signal is available.\n\nIf the size of the buffer passed to read(2) is lower than sizeof(struct\nsignalfd_siginfo), -EINVAL is returned. A read from the signalfd can also\nreturn -ERESTARTSYS in case a signal hits the process. The format of the\nstruct signalfd_siginfo is, and the valid fields depends of the (-\u003ecode \u0026\n__SI_MASK) value, in the same way a struct siginfo would:\n\nstruct signalfd_siginfo {\n\t__u32 signo;\t/* si_signo */\n\t__s32 err;\t/* si_errno */\n\t__s32 code;\t/* si_code */\n\t__u32 pid;\t/* si_pid */\n\t__u32 uid;\t/* si_uid */\n\t__s32 fd;\t/* si_fd */\n\t__u32 tid;\t/* si_fd */\n\t__u32 band;\t/* si_band */\n\t__u32 overrun;\t/* si_overrun */\n\t__u32 trapno;\t/* si_trapno */\n\t__s32 status;\t/* si_status */\n\t__s32 svint;\t/* si_int */\n\t__u64 svptr;\t/* si_ptr */\n\t__u64 utime;\t/* si_utime */\n\t__u64 stime;\t/* si_stime */\n\t__u64 addr;\t/* si_addr */\n};\n\n[akpm@linux-foundation.org: fix signalfd_copyinfo() on i386]\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "97416ce82e20a9511ec369822098a8d20998398a", "tree": "a8ecca47df90e5844853b3578aac6e72ba2694f8", "parents": [ "01f41ec7b36e14da18a4e162ef697ae358f36e37" ], "author": { "name": "Stephen Rothwell", "email": "sfr@canb.auug.org.au", "time": "Wed May 09 02:32:35 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 09 12:30:44 2007 -0700" }, "message": "Declare {compat_}sys_utimensat\n\nThis is needed before Powerpc can wire up the syscall.\n\nSigned-off-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b611967de4dc5c52049676c4369dcac622a7cdfe", "tree": "8c19038c8bbaa4851dcb99bed33707deaf5170d1", "parents": [ "0f836e5fecf59d0d0353e9af11fd14a32a3001ae" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Wed Oct 11 01:21:44 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Oct 11 11:14:21 2006 -0700" }, "message": "[PATCH] epoll_pwait()\n\nImplement the epoll_pwait system call, that extend the event wait mechanism\nwith the same logic ppoll and pselect do. The definition of epoll_pwait\nis:\n\nint epoll_pwait(int epfd, struct epoll_event *events, int maxevents,\n int timeout, const sigset_t *sigmask, size_t sigsetsize);\n\nThe difference between the vanilla epoll_wait and epoll_pwait is that the\nlatter allows the caller to specify a signal mask to be set while waiting\nfor events. Hence epoll_pwait will wait until either one monitored event,\nor an unmasked signal happen. If sigmask is NULL, the epoll_pwait system\ncall will act exactly like epoll_wait. For the POSIX definition of\npselect, information is available here:\n\nhttp://www.opengroup.org/onlinepubs/009695399/functions/select.html\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: David Woodhouse \u003cdwmw2@infradead.org\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ba46df984b8e8114c3cf19c51670fab084bd4196", "tree": "ed41e3a2278dfc22bd7fda59e99d8c74af8f429d", "parents": [ "28c4dadd3a7221f5b9cd5c7d03c499788b193353" ], "author": { "name": "Al Viro", "email": "viro@ftp.linux.org.uk", "time": "Tue Oct 10 22:46:07 2006 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Oct 10 15:37:22 2006 -0700" }, "message": "[PATCH] __user annotations: futex\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3db03b4afb3ecd66a0399b8ba57742ca953b0ecd", "tree": "fe0bd5c3663c58583f0181e2673d569c2df664e7", "parents": [ "6760856791c6e527da678021ee6a67896549d4da" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Mon Oct 02 02:18:31 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 02 07:57:23 2006 -0700" }, "message": "[PATCH] rename the provided execve functions to kernel_execve\n\nSome architectures provide an execve function that does not set errno, but\ninstead returns the result code directly. Rename these to kernel_execve to\nget the right semantics there. Moreover, there is no reasone for any of these\narchitectures to still provide __KERNEL_SYSCALLS__ or _syscallN macros, so\nremove these right away.\n\n[akpm@osdl.org: build fix]\n[bunk@stusta.de: build fix]\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nCc: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Ian Molton \u003cspyro@f2s.com\u003e\nCc: Mikael Starvik \u003cstarvik@axis.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Yoshinori Sato \u003cysato@users.sourceforge.jp\u003e\nCc: Hirokazu Takata \u003ctakata.hirokazu@renesas.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Kazumoto Kojima \u003ckkojima@rr.iij4u.or.jp\u003e\nCc: Richard Curnow \u003crc@rc0.org.uk\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Jeff Dike \u003cjdike@addtoit.com\u003e\nCc: Paolo \u0027Blaisorblade\u0027 Giarrusso \u003cblaisorblade@yahoo.it\u003e\nCc: Miles Bader \u003cuclinux-v850@lsi.nec.co.jp\u003e\nCc: Chris Zankel \u003cchris@zankel.net\u003e\nCc: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nCc: Roman Zippel \u003czippel@linux-m68k.org\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e04da1dfd9041e306cb33d1b40b6005c23c5b325", "tree": "2e9c1a183d9cde4e9a3dfae5591f203fedb7b32b", "parents": [ "0891a8d706d6e6838a926b6dec42f95581747d0e" ], "author": { "name": "Al Viro", "email": "viro@ftp.linux.org.uk", "time": "Fri Sep 29 01:58:35 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 29 09:18:03 2006 -0700" }, "message": "[PATCH] sys_getcpu() prototype annotated\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3cfc348bf90ffaa777c188652aa297f04eb94de8", "tree": "8908d6a5a61e54ab422ec7f4800d6ac591695423", "parents": [ "c08c820508233b424deab3302bc404bbecc6493a" ], "author": { "name": "Andi Kleen", "email": "ak@suse.de", "time": "Tue Sep 26 10:52:28 2006 +0200" }, "committer": { "name": "Andi Kleen", "email": "andi@basil.nowhere.org", "time": "Tue Sep 26 10:52:28 2006 +0200" }, "message": "[PATCH] x86: Add portable getcpu call\n\nFor NUMA optimization and some other algorithms it is useful to have a fast\nto get the current CPU and node numbers in user space.\n\nx86-64 added a fast way to do this in a vsyscall. This adds a generic\nsyscall for other architectures to make it a generic portable facility.\n\nI expect some of them will also implement it as a faster vsyscall.\n\nThe cache is an optimization for the x86-64 vsyscall optimization. Since\nwhat the syscall returns is an approximation anyways and user space\noften wants very fast results it can be cached for some time. The norma\nmethods to get this information in user space are relatively slow\n\nThe vsyscall is in a better position to manage the cache because it has direct\naccess to a fast time stamp (jiffies). For the generic syscall optimization\nit doesn\u0027t help much, but enforce a valid argument to keep programs\nportable\n\nI only added an i386 syscall entry for now. Other architectures can follow\nas needed.\n\nAK: Also added some cleanups from Andrew Morton\n\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\n" }, { "commit": "e2970f2fb6950183a34e8545faa093eb49d186e1", "tree": "a4035274368d846488a3b0152925502c06b064b0", "parents": [ "66e5393a78b3fcca63e7748e38221dcca61c4aab" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jun 27 02:54:47 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jun 27 17:32:46 2006 -0700" }, "message": "[PATCH] pi-futex: futex code cleanups\n\nWe are pleased to announce \"lightweight userspace priority inheritance\" (PI)\nsupport for futexes. The following patchset and glibc patch implements it,\nontop of the robust-futexes patchset which is included in 2.6.16-mm1.\n\nWe are calling it lightweight for 3 reasons:\n\n - in the user-space fastpath a PI-enabled futex involves no kernel work\n (or any other PI complexity) at all. No registration, no extra kernel\n calls - just pure fast atomic ops in userspace.\n\n - in the slowpath (in the lock-contention case), the system call and\n scheduling pattern is in fact better than that of normal futexes, due to\n the \u0027integrated\u0027 nature of FUTEX_LOCK_PI. [more about that further down]\n\n - the in-kernel PI implementation is streamlined around the mutex\n abstraction, with strict rules that keep the implementation relatively\n simple: only a single owner may own a lock (i.e. no read-write lock\n support), only the owner may unlock a lock, no recursive locking, etc.\n\n Priority Inheritance - why, oh why???\n -------------------------------------\n\nMany of you heard the horror stories about the evil PI code circling Linux for\nyears, which makes no real sense at all and is only used by buggy applications\nand which has horrible overhead. Some of you have dreaded this very moment,\nwhen someone actually submits working PI code ;-)\n\nSo why would we like to see PI support for futexes?\n\nWe\u0027d like to see it done purely for technological reasons. We dont think it\u0027s\na buggy concept, we think it\u0027s useful functionality to offer to applications,\nwhich functionality cannot be achieved in other ways. We also think it\u0027s the\nright thing to do, and we think we\u0027ve got the right arguments and the right\nnumbers to prove that. We also believe that we can address all the\ncounter-arguments as well. For these reasons (and the reasons outlined below)\nwe are submitting this patch-set for upstream kernel inclusion.\n\nWhat are the benefits of PI?\n\n The short reply:\n ----------------\n\nUser-space PI helps achieving/improving determinism for user-space\napplications. In the best-case, it can help achieve determinism and\nwell-bound latencies. Even in the worst-case, PI will improve the statistical\ndistribution of locking related application delays.\n\n The longer reply:\n -----------------\n\nFirstly, sharing locks between multiple tasks is a common programming\ntechnique that often cannot be replaced with lockless algorithms. As we can\nsee it in the kernel [which is a quite complex program in itself], lockless\nstructures are rather the exception than the norm - the current ratio of\nlockless vs. locky code for shared data structures is somewhere between 1:10\nand 1:100. Lockless is hard, and the complexity of lockless algorithms often\nendangers to ability to do robust reviews of said code. I.e. critical RT\napps often choose lock structures to protect critical data structures, instead\nof lockless algorithms. Furthermore, there are cases (like shared hardware,\nor other resource limits) where lockless access is mathematically impossible.\n\nMedia players (such as Jack) are an example of reasonable application design\nwith multiple tasks (with multiple priority levels) sharing short-held locks:\nfor example, a highprio audio playback thread is combined with medium-prio\nconstruct-audio-data threads and low-prio display-colory-stuff threads. Add\nvideo and decoding to the mix and we\u0027ve got even more priority levels.\n\nSo once we accept that synchronization objects (locks) are an unavoidable fact\nof life, and once we accept that multi-task userspace apps have a very fair\nexpectation of being able to use locks, we\u0027ve got to think about how to offer\nthe option of a deterministic locking implementation to user-space.\n\nMost of the technical counter-arguments against doing priority inheritance\nonly apply to kernel-space locks. But user-space locks are different, there\nwe cannot disable interrupts or make the task non-preemptible in a critical\nsection, so the \u0027use spinlocks\u0027 argument does not apply (user-space spinlocks\nhave the same priority inversion problems as other user-space locking\nconstructs). Fact is, pretty much the only technique that currently enables\ngood determinism for userspace locks (such as futex-based pthread mutexes) is\npriority inheritance:\n\nCurrently (without PI), if a high-prio and a low-prio task shares a lock [this\nis a quite common scenario for most non-trivial RT applications], even if all\ncritical sections are coded carefully to be deterministic (i.e. all critical\nsections are short in duration and only execute a limited number of\ninstructions), the kernel cannot guarantee any deterministic execution of the\nhigh-prio task: any medium-priority task could preempt the low-prio task while\nit holds the shared lock and executes the critical section, and could delay it\nindefinitely.\n\n Implementation:\n ---------------\n\nAs mentioned before, the userspace fastpath of PI-enabled pthread mutexes\ninvolves no kernel work at all - they behave quite similarly to normal\nfutex-based locks: a 0 value means unlocked, and a value\u003d\u003dTID means locked.\n(This is the same method as used by list-based robust futexes.) Userspace uses\natomic ops to lock/unlock these mutexes without entering the kernel.\n\nTo handle the slowpath, we have added two new futex ops:\n\n FUTEX_LOCK_PI\n FUTEX_UNLOCK_PI\n\nIf the lock-acquire fastpath fails, [i.e. an atomic transition from 0 to TID\nfails], then FUTEX_LOCK_PI is called. The kernel does all the remaining work:\nif there is no futex-queue attached to the futex address yet then the code\nlooks up the task that owns the futex [it has put its own TID into the futex\nvalue], and attaches a \u0027PI state\u0027 structure to the futex-queue. The pi_state\nincludes an rt-mutex, which is a PI-aware, kernel-based synchronization\nobject. The \u0027other\u0027 task is made the owner of the rt-mutex, and the\nFUTEX_WAITERS bit is atomically set in the futex value. Then this task tries\nto lock the rt-mutex, on which it blocks. Once it returns, it has the mutex\nacquired, and it sets the futex value to its own TID and returns. Userspace\nhas no other work to perform - it now owns the lock, and futex value contains\nFUTEX_WAITERS|TID.\n\nIf the unlock side fastpath succeeds, [i.e. userspace manages to do a TID -\u003e\n0 atomic transition of the futex value], then no kernel work is triggered.\n\nIf the unlock fastpath fails (because the FUTEX_WAITERS bit is set), then\nFUTEX_UNLOCK_PI is called, and the kernel unlocks the futex on the behalf of\nuserspace - and it also unlocks the attached pi_state-\u003ert_mutex and thus wakes\nup any potential waiters.\n\nNote that under this approach, contrary to other PI-futex approaches, there is\nno prior \u0027registration\u0027 of a PI-futex. [which is not quite possible anyway,\ndue to existing ABI properties of pthread mutexes.]\n\nAlso, under this scheme, \u0027robustness\u0027 and \u0027PI\u0027 are two orthogonal properties\nof futexes, and all four combinations are possible: futex, robust-futex,\nPI-futex, robust+PI-futex.\n\n glibc support:\n --------------\n\nUlrich Drepper and Jakub Jelinek have written glibc support for PI-futexes\n(and robust futexes), enabling robust and PI (PTHREAD_PRIO_INHERIT) POSIX\nmutexes. (PTHREAD_PRIO_PROTECT support will be added later on too, no\nadditional kernel changes are needed for that). [NOTE: The glibc patch is\nobviously inofficial and unsupported without matching upstream kernel\nfunctionality.]\n\nthe patch-queue and the glibc patch can also be downloaded from:\n\n http://redhat.com/~mingo/PI-futex-patches/\n\nMany thanks go to the people who helped us create this kernel feature: Steven\nRostedt, Esben Nielsen, Benedikt Spranger, Daniel Walker, John Cooper, Arjan\nvan de Ven, Oleg Nesterov and others. Credits for related prior projects goes\nto Dirk Grambow, Inaky Perez-Gonzalez, Bill Huey and many others.\n\nClean up the futex code, before adding more features to it:\n\n - use u32 as the futex field type - that\u0027s the ABI\n - use __user and pointers to u32 instead of unsigned long\n - code style / comment style cleanups\n - rename hash-bucket name from \u0027bh\u0027 to \u0027hb\u0027.\n\nI checked the pre and post futex.o object files to make sure this\npatch has no code effects.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nCc: Jakub Jelinek \u003cjakub@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9216dfad4fc97ab639ef0885efc713f3d7a20d5b", "tree": "546e301f3181f56133509327f9c5ed035dd4b50d", "parents": [ "1b2db9fb7adc4d67d9ce7d16ce79c41ee84730fe" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Fri Jun 23 02:03:57 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 23 07:42:53 2006 -0700" }, "message": "[PATCH] move_pages: fix 32 -\u003e 64 bit compat function\n\nThe definition of the third parameter is a pointer to an array of virtual\naddresses which give us some trouble. The existing code calculated the\nwrong address in the array since I used void to avoid having to specify a\ntype.\n\nI now use the correct type \"compat_uptr_t __user *\" in the definition of\nthe function in kernel/compat.c.\n\nHowever, I used __u32 in syscalls.h. Would have to include compat.h there\nin order to provide the same definition which would generate an ugly\ninclude situation.\n\nOn both ia64 and x86_64 compat_uptr_t is u32. So this works although\nparameter declarations differ.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1b2db9fb7adc4d67d9ce7d16ce79c41ee84730fe", "tree": "d3fc0962ada099d741717d36a3f658c15b20c65a", "parents": [ "b63d64a324056cf3c2f7a1a1fe8134100edbb058" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Fri Jun 23 02:03:56 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 23 07:42:53 2006 -0700" }, "message": "[PATCH] sys_move_pages: 32bit support (i386, x86_64)\n\nsys_move_pages() support for 32bit (i386 plus x86_64 compat layer)\n\nAdd support for move_pages() on i386 and also add the compat functions\nnecessary to run 32 bit binaries on x86_64.\n\nAdd compat_sys_move_pages to the x86_64 32bit binary layer. Note that it is\nnot up to date so I added the missing pieces. Not sure if this is done the\nright way.\n\n[akpm@osdl.org: compile fix]\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "742755a1d8ce2b548428f7aacf1758b4bba50080", "tree": "53426657e14dc19a694d418274c9a6f4dcb8a997", "parents": [ "95a402c3847cc16f4ba03013cd01404fa0f14c2e" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Fri Jun 23 02:03:55 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 23 07:42:53 2006 -0700" }, "message": "[PATCH] page migration: sys_move_pages(): support moving of individual pages\n\nmove_pages() is used to move individual pages of a process. The function can\nbe used to determine the location of pages and to move them onto the desired\nnode. move_pages() returns status information for each page.\n\nlong move_pages(pid, number_of_pages_to_move,\n\t\taddresses_of_pages[],\n\t\tnodes[] or NULL,\n\t\tstatus[],\n\t\tflags);\n\nThe addresses of pages is an array of void * pointing to the\npages to be moved.\n\nThe nodes array contains the node numbers that the pages should be moved\nto. If a NULL is passed instead of an array then no pages are moved but\nthe status array is updated. The status request may be used to determine\nthe page state before issuing another move_pages() to move pages.\n\nThe status array will contain the state of all individual page migration\nattempts when the function terminates. The status array is only valid if\nmove_pages() completed successfullly.\n\nPossible page states in status[]:\n\n0..MAX_NUMNODES\tThe page is now on the indicated node.\n\n-ENOENT\t\tPage is not present\n\n-EACCES\t\tPage is mapped by multiple processes and can only\n\t\tbe moved if MPOL_MF_MOVE_ALL is specified.\n\n-EPERM\t\tThe page has been mlocked by a process/driver and\n\t\tcannot be moved.\n\n-EBUSY\t\tPage is busy and cannot be moved. Try again later.\n\n-EFAULT\t\tInvalid address (no VMA or zero page).\n\n-ENOMEM\t\tUnable to allocate memory on target node.\n\n-EIO\t\tUnable to write back page. The page must be written\n\t\tback in order to move it since the page is dirty and the\n\t\tfilesystem does not provide a migration function that\n\t\twould allow the moving of dirty pages.\n\n-EINVAL\t\tA dirty page cannot be moved. The filesystem does not provide\n\t\ta migration function and has no ability to write back pages.\n\nThe flags parameter indicates what types of pages to move:\n\nMPOL_MF_MOVE\tMove pages that are only mapped by the process.\n\nMPOL_MF_MOVE_ALL Also move pages that are mapped by multiple processes.\n\t\tRequires sufficient capabilities.\n\nPossible return codes from move_pages()\n\n-ENOENT\t\tNo pages found that would require moving. All pages\n\t\tare either already on the target node, not present, had an\n\t\tinvalid address or could not be moved because they were\n\t\tmapped by multiple processes.\n\n-EINVAL\t\tFlags other than MPOL_MF_MOVE(_ALL) specified or an attempt\n\t\tto migrate pages in a kernel thread.\n\n-EPERM\t\tMPOL_MF_MOVE_ALL specified without sufficient priviledges.\n\t\tor an attempt to move a process belonging to another user.\n\n-EACCES\t\tOne of the target nodes is not allowed by the current cpuset.\n\n-ENODEV\t\tOne of the target nodes is not online.\n\n-ESRCH\t\tProcess does not exist.\n\n-E2BIG\t\tToo many pages to move.\n\n-ENOMEM\t\tNot enough memory to allocate control array.\n\n-EFAULT\t\tParameters could not be accessed.\n\nA test program for move_pages() may be found with the patches\non ftp.kernel.org:/pub/linux/kernel/people/christoph/pmig/patches-2.6.17-rc4-mm3\n\nFrom: Christoph Lameter \u003cclameter@sgi.com\u003e\n\n Detailed results for sys_move_pages()\n\n Pass a pointer to an integer to get_new_page() that may be used to\n indicate where the completion status of a migration operation should be\n placed. This allows sys_move_pags() to report back exactly what happened to\n each page.\n\n Wish there would be a better way to do this. Looks a bit hacky.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Jes Sorensen \u003cjes@trained-monkey.org\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "66643de455c27973ac31ad6de9f859d399916842", "tree": "7ebed7f051879007d4b11d6aaa9e65a1bcb0b08f", "parents": [ "2c23d62abb820e19c54012520f08a198c2233a85", "387e2b0439026aa738a9edca15a57e5c0bcb4dfc" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Wed May 24 09:22:21 2006 +0100" }, "committer": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Wed May 24 09:22:21 2006 +0100" }, "message": "Merge branch \u0027master\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6\n\nConflicts:\n\n\tinclude/asm-powerpc/unistd.h\n\tinclude/asm-sparc/unistd.h\n\tinclude/asm-sparc64/unistd.h\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\n" }, { "commit": "0f0410823792ae0ecb45f2578598b115835ffdbb", "tree": "b20f362f34757b8d612d8f1c2740fca5f329d93e", "parents": [ "b471f55427ee94d6de2b33b88a7409f8cbc6b5dc" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Tue May 23 07:46:40 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue May 23 10:35:32 2006 -0700" }, "message": "[PATCH] powerpc: wire up sys_[gs]et_robust_list\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d6754b401a15eaa16492ea5dbaa4826361d3f411", "tree": "032f067d3af458527d903a7653885404ed82431e", "parents": [ "acc429a517bd11fdcac9bea97d082d26231beb92", "693f7d362055261882659475d2ef022e32edbff1" ], "author": { "name": "David Woodhouse", "email": "dwmw2@shinybook.infradead.org", "time": "Sat Apr 29 01:42:26 2006 +0100" }, "committer": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Sat Apr 29 01:42:26 2006 +0100" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6\n" }, { "commit": "62c4f0a2d5a188f73a94f2cb8ea0dba3e7cf0a7f", "tree": "e85ca2d0dd43f90dccf758338764c3caa55f333f", "parents": [ "089f26d5e31b7bf42a9a8fefec08b30cd27f4b0e" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Wed Apr 26 12:56:16 2006 +0100" }, "committer": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Wed Apr 26 12:56:16 2006 +0100" }, "message": "Don\u0027t include linux/config.h from anywhere else in include/\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\n" }, { "commit": "912d35f86781e64d73be1ef358f703c08905ac37", "tree": "5863ad70f5cdccba0c1cd28f83d173deaf71fb83", "parents": [ "016b661e2f717168e600f3c85f29e1a49f88e004" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Wed Apr 26 10:59:21 2006 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Wed Apr 26 10:59:21 2006 +0200" }, "message": "[PATCH] Add support for the sys_vmsplice syscall\n\nsys_splice() moves data to/from pipes with a file input/output. sys_vmsplice()\nmoves data to a pipe, with the input being a user address range instead.\n\nThis uses an approach suggested by Linus, where we can hold partial ranges\ninside the pages[] map. Hopefully this will be useful for network\nreceive support as well.\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "70524490ee2ea1bbf6cee6c106597b3ac25a3fc2", "tree": "c61dd500035bc3e0dea364777de1b7a58b41a75c", "parents": [ "cbb7e577e732f576b9f399bc2600bdc0626c68dc" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Tue Apr 11 15:51:17 2006 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Tue Apr 11 15:51:17 2006 +0200" }, "message": "[PATCH] splice: add support for sys_tee()\n\nBasically an in-kernel implementation of tee, which uses splice and the\npipe buffers as an intelligent way to pass data around by reference.\n\nWhere the user space tee consumes the input and produces a stdout and\nfile output, this syscall merely duplicates the data inside a pipe to\nanother pipe. No data is copied, the output just grabs a reference to the\ninput pipe data.\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "88dd9c16cecbd105bbe7711b6120333f6f7b5474", "tree": "9632e5988abeaa7e4d20350305edc4e4652b56d1", "parents": [ "6dde432553551ae036aae12c2b940677d36c9a5b", "d1195c516a9acd767cb541f914be2c6ddcafcfc1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Apr 11 06:34:02 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Apr 11 06:34:02 2006 -0700" }, "message": "Merge branch \u0027splice\u0027 of git://brick.kernel.dk/data/git/linux-2.6-block\n\n* \u0027splice\u0027 of git://brick.kernel.dk/data/git/linux-2.6-block:\n [PATCH] vfs: add splice_write and splice_read to documentation\n [PATCH] Remove sys_ prefix of new syscalls from __NR_sys_*\n [PATCH] splice: warning fix\n [PATCH] another round of fs/pipe.c cleanups\n [PATCH] splice: comment styles\n [PATCH] splice: add Ingo as addition copyright holder\n [PATCH] splice: unlikely() optimizations\n [PATCH] splice: speedups and optimizations\n [PATCH] pipe.c/fifo.c code cleanups\n [PATCH] get rid of the PIPE_*() macros\n [PATCH] splice: speedup __generic_file_splice_read\n [PATCH] splice: add direct fd \u003c-\u003e fd splicing support\n [PATCH] splice: add optional input and output offsets\n [PATCH] introduce a \"kernel-internal pipe object\" abstraction\n [PATCH] splice: be smarter about calling do_page_cache_readahead()\n [PATCH] splice: optimize the splice buffer mapping\n [PATCH] splice: cleanup __generic_file_splice_read()\n [PATCH] splice: only call wake_up_interruptible() when we really have to\n [PATCH] splice: potential !page dereference\n [PATCH] splice: mark the io page as accessed\n" }, { "commit": "5246d0503130fa58904c8beb987fcf93b96d8ab6", "tree": "c807f1bba6a1d5abf0b3a9f221bc3e49ca5810c8", "parents": [ "8833d328caf009f8da58337e17a2cf5d52993a7c" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Mon Apr 10 22:53:57 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Apr 11 06:18:40 2006 -0700" }, "message": "[PATCH] sync_file_range(): use unsigned for flags\n\nUlrich suggested that the `flags\u0027 arg to sync_file_range() become unsigned.\n\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "529565dcb1581c9a1e3f6df1c1763ca3e0f0d512", "tree": "e8069cc17f887ad86f8dee0d96640a2f19bf4112", "parents": [ "3a326a2ce88e71d00ac0d133e314a3342a7709f8" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 10 15:18:58 2006 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Mon Apr 10 15:18:58 2006 +0200" }, "message": "[PATCH] splice: add optional input and output offsets\n\nadd optional input and output offsets to sys_splice(), for seekable file\ndescriptors:\n\n asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,\n int fd_out, loff_t __user *off_out,\n size_t len, unsigned int flags);\n\nsemantics are straightforward: f_pos will be updated with the offset\nprovided by user-space, before the splice transfer is about to begin.\nProviding a NULL offset pointer means the existing f_pos will be used\n(and updated in situ). Providing an offset for a pipe results in\n-ESPIPE. Providing an invalid offset pointer results in -EFAULT.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "f79e2abb9bd452d97295f34376dedbec9686b986", "tree": "56b9998caa11983556e842fb9a8143d86d765fa3", "parents": [ "d6dfd1310d3562698fd7c3c086f6c239f96394ac" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Fri Mar 31 02:30:42 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 31 12:18:54 2006 -0800" }, "message": "[PATCH] sys_sync_file_range()\n\nRemove the recently-added LINUX_FADV_ASYNC_WRITE and LINUX_FADV_WRITE_WAIT\nfadvise() additions, do it in a new sys_sync_file_range() syscall instead.\nReasons:\n\n- It\u0027s more flexible. Things which would require two or three syscalls with\n fadvise() can be done in a single syscall.\n\n- Using fadvise() in this manner is something not covered by POSIX.\n\nThe patch wires up the syscall for x86.\n\nThe sycall is implemented in the new fs/sync.c. The intention is that we can\nmove sys_fsync(), sys_fdatasync() and perhaps sys_sync() into there later.\n\nDocumentation for the syscall is in fs/sync.c.\n\nA test app (sync_file_range.c) is in\nhttp://www.zip.com.au/~akpm/linux/patches/stuff/ext3-tools.tar.gz.\n\nThe available-to-GPL-modules do_sync_file_range() is for knfsd: \"A COMMIT can\nsay NFS_DATA_SYNC or NFS_FILE_SYNC. I can skip the -\u003efsync call for\nNFS_DATA_SYNC which is hopefully the more common.\"\n\nNote: the `async\u0027 writeout mode SYNC_FILE_RANGE_WRITE will turn synchronous if\nthe queue is congested. This is trivial to fix: add a new flag bit, set\nwbc-\u003enonblocking. But I\u0027m not sure that we want to expose implementation\ndetails down to that level.\n\nNote: it\u0027s notable that we can sync an fd which wasn\u0027t opened for writing.\nSame with fsync() and fdatasync()).\n\nNote: the code takes some care to handle attempts to sync file contents\noutside the 16TB offset on 32-bit machines. It makes such attempts appear to\nsucceed, for best 32-bit/64-bit compatibility. Perhaps it should make such\nrequests fail...\n\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nCc: Neil Brown \u003cneilb@cse.unsw.edu.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" } ], "next": "5274f052e7b3dbd81935772eb551dfd0325dfa9d" }