)]}' { "log": [ { "commit": "810b38179e9e4d4f57b4b733767bb08f8291a965", "tree": "91692de4fbd46879b29d803839b5bf7e25f30cd8", "parents": [ "ce4796d1e16cf3761dc2a02b8d588667d05b3078" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Feb 29 15:21:01 2008 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 07 16:42:59 2008 +0100" }, "message": "sched: retain vruntime\n\nKei Tokunaga reported an interactivity problem when moving tasks\nbetween control groups.\n\nTasks would retain their old vruntime when moved between groups, this\ncan cause funny lags. Re-set the vruntime on group move to fit within\nthe new tree.\n\nReported-by: Kei Tokunaga \u003ctokunaga.keiich@jp.fujitsu.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "62fb185130e4d420f71a30ff59d8b16b74ef5d2b", "tree": "474c0824a5bf90950b0a430a11a52b358c9e1f31", "parents": [ "976dde010e513a9c7c3117a32b7b015f84b37430" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Feb 25 17:34:02 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Mar 04 17:54:06 2008 +0100" }, "message": "sched: revert load_balance_monitor() changes\n\nThe following commits cause a number of regressions:\n\n commit 58e2d4ca581167c2a079f4ee02be2f0bc52e8729\n Author: Srivatsa Vaddagiri \u003cvatsa@linux.vnet.ibm.com\u003e\n Date: Fri Jan 25 21:08:00 2008 +0100\n sched: group scheduling, change how cpu load is calculated\n\n commit 6b2d7700266b9402e12824e11e0099ae6a4a6a79\n Author: Srivatsa Vaddagiri \u003cvatsa@linux.vnet.ibm.com\u003e\n Date: Fri Jan 25 21:08:00 2008 +0100\n sched: group scheduler, fix fairness of cpu bandwidth allocation for task groups\n\nNamely:\n - very frequent wakeups on SMP, reported by PowerTop users.\n - cacheline trashing on (large) SMP\n - some latencies larger than 500ms\n\nWhile there is a mergeable patch to fix the latter, the former issues\nare not fixable in a manner suitable for .25 (we\u0027re at -rc3 now).\n\nHence we revert them and try again in v2.6.26.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCC: Srivatsa Vaddagiri \u003cvatsa@linux.vnet.ibm.com\u003e\nTested-by: Alexey Zaytsev \u003calexey.zaytsev@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3fca96eed1cc9fb524aec536bba8ae921563f1bb", "tree": "474cdcc572b3433f01f221ea8857414bde53b7a2", "parents": [ "98c1fc934c097d84dc30c639e9bdb0b992ef53e2", "1481197b50114d7212d659d41cb97f31a8934883" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 26 07:49:15 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 26 07:49:15 2008 -0800" }, "message": "Merge branch \u0027v2.6.25-rc3-lockdep\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep\n\n* \u0027v2.6.25-rc3-lockdep\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep:\n Subject: lockdep: include all lock classes in all_lock_classes\n lockdep: increase MAX_LOCK_DEPTH\n" }, { "commit": "bdb9441e9c325d50b5ae17f7d3205d65b8ed2e5f", "tree": "2696d81a8c3f5bf128aab134b1f23c14d539baac", "parents": [ "bfa274e2436fc7ef72ef51c878083647f1cfd429" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Feb 25 23:02:48 2008 +0100" }, "committer": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Feb 25 23:02:48 2008 +0100" }, "message": "lockdep: increase MAX_LOCK_DEPTH\n\nSome code paths exceed the current max lock depth (XFS), so increase\nthis limit a bit. I looked at making this a dynamic allocated array,\nbut we should not advocate insane lock depths, so stay with this as\nlong as it works...\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2d07b255c7b8a9723010e5c74778e058dc05162e", "tree": "3d1e2d56a89c23faede930f77e875a718fb4f0b6", "parents": [ "67ca7bde2e9d3516b5ae0188330ad1059ac03f38" ], "author": { "name": "Harvey Harrison", "email": "harvey.harrison@gmail.com", "time": "Fri Feb 15 09:56:34 2008 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Feb 25 16:34:17 2008 +0100" }, "message": "sched: add declaration of sched_tail to sched.h\n\nAvoids sparse warnings:\nkernel/sched.c:2170:17: warning: symbol \u0027schedule_tail\u0027 was not declared. Should it be static?\n\nAvoids the need for an external declaration in arch/um/process.c\n\nSigned-off-by: Harvey Harrison \u003charvey.harrison@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b3c97528689619fc66569b30bf83d09d9929521a", "tree": "91dc53590deab88c9bf255c2b5cbd74bdbc36de1", "parents": [ "aa02cd2d9bd1e24a230bd66a0a741b984d03915a" ], "author": { "name": "Harvey Harrison", "email": "harvey.harrison@gmail.com", "time": "Wed Feb 13 15:03:15 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Feb 13 16:21:18 2008 -0800" }, "message": "include/linux: Remove all users of FASTCALL() macro\n\nFASTCALL() is always expanded to empty, remove it.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Harvey Harrison \u003charvey.harrison@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "052f1dc7eb02300b05170ae341ccd03b76207778", "tree": "f58630b7876ae9e4308c0577e36aa13318b7bcfc", "parents": [ "9f0c1e560c43327b70998e6c702b2f01321130d9" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Feb 13 15:45:40 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Feb 13 15:45:40 2008 +0100" }, "message": "sched: rt-group: make rt groups scheduling configurable\n\nMake the rt group scheduler compile time configurable.\nKeep it experimental for now.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9f0c1e560c43327b70998e6c702b2f01321130d9", "tree": "b2cc7ef5bb0dc9d7d2912de339bff3e0db3530c9", "parents": [ "23b0fdfc9299b137bd126e9dc22f62a59dae546d" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Feb 13 15:45:39 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Feb 13 15:45:39 2008 +0100" }, "message": "sched: rt-group: interface\n\nChange the rt_ratio interface to rt_runtime_us, to match rt_period_us.\nThis avoids picking a granularity for the ratio.\n\nExtend the /sys/kernel/uids/\u003cuid\u003e/ interface to allow setting\nthe group\u0027s rt_runtime.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "146a505d498c36de98ec161d791dd50beca7f9a3", "tree": "f126c55b34488866ff179717f1b2a0c7cdd5df6b", "parents": [ "d5df763b81946a405837b80874516dfc2a8f7ebf" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Feb 08 04:19:22 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:29 2008 -0800" }, "message": "Get rid of the kill_pgrp_info() function\n\nThere\u0027s only one caller left - the kill_pgrp one - so merge these two\nfunctions and forget the kill_pgrp_info one.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nReviewed-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fea9d175545b38cb3e84569400419eb81bc90fa3", "tree": "0d43fe9ed2ea6104ee8b15a3eb8da081dd08fd35", "parents": [ "46f382d2b69d2221086b823f0dbc8f32c027cac2" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Feb 08 04:19:19 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:29 2008 -0800" }, "message": "ITIMER_REAL: convert to use struct pid\n\nsignal_struct-\u003etsk points to the -\u003egroup_leader and thus we have the nasty\ncode in de_thread() which has to change it and restart -\u003ereal_timer if the\nleader is changed.\n\nUse \"struct pid *leader_pid\" instead. This also allows us to kill now\nunneeded send_group_sig_info().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nAcked-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "44c4e1b2581f7273ab14ef30b6430618801c57b1", "tree": "9881990d56dd58f0c93991217a999bab145946fa", "parents": [ "161550d74c07303ffa6187ba776f62df5a906a21" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Feb 08 04:19:15 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:27 2008 -0800" }, "message": "pid: Extend/Fix pid_vnr\n\npid_vnr returns the user space pid with respect to the pid namespace the\nstruct pid was allocated in. What we want before we return a pid to user\nspace is the user space pid with respect to the pid namespace of current.\n\npid_vnr is a very nice optimization but because it isn\u0027t quite what we want\nit is easy to use pid_vnr at times when we aren\u0027t certain the struct pid\nwas allocated in our pid namespace.\n\nCurrently this describes at least tiocgpgrp and tiocgsid in ttyio.c the\nparent process reported in the core dumps and the parent process in\nget_signal_to_deliver.\n\nSo unless the performance impact is huge having an interface that does what\nwe want instead of always what we want should be much more reliable and\nmuch less error prone.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8520d7c7f8611216e3b270becec95bb35b6899d4", "tree": "77001e6830bb415590067e9d4be24cd8bdd36219", "parents": [ "e4cc0a9c876d4d4eadaef97a2bff4a199946d202" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Feb 08 04:19:09 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:27 2008 -0800" }, "message": "teach set_special_pids() to use struct pid\n\nChange set_special_pids() to work with struct pid, not pid_t from global name\nspace. This again speedups and imho cleanups the code, also a preparation for\nthe next patch.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "78fb74669e80883323391090e4d26d17fe29488f", "tree": "9154b703510415ae87bdae8750c1054e79710c61", "parents": [ "8cdea7c05454260c0d4d83503949c358eb131d17" ], "author": { "name": "Pavel Emelianov", "email": "xemul@openvz.org", "time": "Thu Feb 07 00:13:51 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Feb 07 08:42:18 2008 -0800" }, "message": "Memory controller: accounting setup\n\nBasic setup routines, the mm_struct has a pointer to the cgroup that\nit belongs to and the the page has a page_cgroup associated with it.\n\nSigned-off-by: Pavel Emelianov \u003cxemul@openvz.org\u003e\nSigned-off-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Kirill Korotaev \u003cdev@sw.ru\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1bf47346d75790ebd2563d909d48046961c7ffd5", "tree": "0f478764beb8dc4e0c71c5f3d6a657535579fe3a", "parents": [ "6b2fb3c65844452bb9e8b449d50863d1b36c5dc0" ], "author": { "name": "Eric Dumazet", "email": "dada1@cosmosbay.com", "time": "Wed Feb 06 01:37:56 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Feb 06 10:41:09 2008 -0800" }, "message": "kernel/sys.c: get rid of expensive divides in groups_sort()\n\ngroups_sort() can be quite long if user loads a large gid table.\n\nThis is because GROUP_AT(group_info, some_integer) uses an integer divide.\nSo having to do XXX thousand divides during one syscall can lead to very\nhigh latencies. (NGROUPS_MAX\u003d65536)\n\nIn the past (25 Mar 2006), an analog problem was found in groups_search()\n(commit d74beb9f33a5f16d2965f11b275e401f225c949d ) and at that time I\nchanged some variables to unsigned int.\n\nI believe that a more generic fix is to make sure NGROUPS_PER_BLOCK is\nunsigned.\n\nSigned-off-by: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3b7391de67da515c91f48aa371de77cb6cc5c07e", "tree": "22b9f5d9d1c36b374eb5765219aca3c7e1f23486", "parents": [ "46c383cc4530ccc438cb325e92e11eb21dd3d4fc" ], "author": { "name": "Serge E. Hallyn", "email": "serue@us.ibm.com", "time": "Mon Feb 04 22:29:45 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:20 2008 -0800" }, "message": "capabilities: introduce per-process capability bounding set\n\nThe capability bounding set is a set beyond which capabilities cannot grow.\n Currently cap_bset is per-system. It can be manipulated through sysctl,\nbut only init can add capabilities. Root can remove capabilities. By\ndefault it includes all caps except CAP_SETPCAP.\n\nThis patch makes the bounding set per-process when file capabilities are\nenabled. It is inherited at fork from parent. Noone can add elements,\nCAP_SETPCAP is required to remove them.\n\nOne example use of this is to start a safer container. For instance, until\ndevice namespaces or per-container device whitelists are introduced, it is\nbest to take CAP_MKNOD away from a container.\n\nThe bounding set will not affect pP and pE immediately. It will only\naffect pP\u0027 and pE\u0027 after subsequent exec()s. It also does not affect pI,\nand exec() does not constrain pI\u0027. So to really start a shell with no way\nof regain CAP_MKNOD, you would do\n\n\tprctl(PR_CAPBSET_DROP, CAP_MKNOD);\n\tcap_t cap \u003d cap_get_proc();\n\tcap_value_t caparray[1];\n\tcaparray[0] \u003d CAP_MKNOD;\n\tcap_set_flag(cap, CAP_INHERITABLE, 1, caparray, CAP_DROP);\n\tcap_set_proc(cap);\n\tcap_free(cap);\n\nThe following test program will get and set the bounding\nset (but not pI). For instance\n\n\t./bset get\n\t\t(lists capabilities in bset)\n\t./bset drop cap_net_raw\n\t\t(starts shell with new bset)\n\t\t(use capset, setuid binary, or binary with\n\t\tfile capabilities to try to increase caps)\n\n************************************************************\ncap_bound.c\n************************************************************\n #include \u003csys/prctl.h\u003e\n #include \u003clinux/capability.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003cunistd.h\u003e\n #include \u003cstdio.h\u003e\n #include \u003cstdlib.h\u003e\n #include \u003cstring.h\u003e\n\n #ifndef PR_CAPBSET_READ\n #define PR_CAPBSET_READ 23\n #endif\n\n #ifndef PR_CAPBSET_DROP\n #define PR_CAPBSET_DROP 24\n #endif\n\nint usage(char *me)\n{\n\tprintf(\"Usage: %s get\\n\", me);\n\tprintf(\" %s drop \u003ccapability\u003e\\n\", me);\n\treturn 1;\n}\n\n #define numcaps 32\nchar *captable[numcaps] \u003d {\n\t\"cap_chown\",\n\t\"cap_dac_override\",\n\t\"cap_dac_read_search\",\n\t\"cap_fowner\",\n\t\"cap_fsetid\",\n\t\"cap_kill\",\n\t\"cap_setgid\",\n\t\"cap_setuid\",\n\t\"cap_setpcap\",\n\t\"cap_linux_immutable\",\n\t\"cap_net_bind_service\",\n\t\"cap_net_broadcast\",\n\t\"cap_net_admin\",\n\t\"cap_net_raw\",\n\t\"cap_ipc_lock\",\n\t\"cap_ipc_owner\",\n\t\"cap_sys_module\",\n\t\"cap_sys_rawio\",\n\t\"cap_sys_chroot\",\n\t\"cap_sys_ptrace\",\n\t\"cap_sys_pacct\",\n\t\"cap_sys_admin\",\n\t\"cap_sys_boot\",\n\t\"cap_sys_nice\",\n\t\"cap_sys_resource\",\n\t\"cap_sys_time\",\n\t\"cap_sys_tty_config\",\n\t\"cap_mknod\",\n\t\"cap_lease\",\n\t\"cap_audit_write\",\n\t\"cap_audit_control\",\n\t\"cap_setfcap\"\n};\n\nint getbcap(void)\n{\n\tint comma\u003d0;\n\tunsigned long i;\n\tint ret;\n\n\tprintf(\"i know of %d capabilities\\n\", numcaps);\n\tprintf(\"capability bounding set:\");\n\tfor (i\u003d0; i\u003cnumcaps; i++) {\n\t\tret \u003d prctl(PR_CAPBSET_READ, i);\n\t\tif (ret \u003c 0)\n\t\t\tperror(\"prctl\");\n\t\telse if (ret\u003d\u003d1)\n\t\t\tprintf(\"%s%s\", (comma++) ? \", \" : \" \", captable[i]);\n\t}\n\tprintf(\"\\n\");\n\treturn 0;\n}\n\nint capdrop(char *str)\n{\n\tunsigned long i;\n\n\tint found\u003d0;\n\tfor (i\u003d0; i\u003cnumcaps; i++) {\n\t\tif (strcmp(captable[i], str) \u003d\u003d 0) {\n\t\t\tfound\u003d1;\n\t\t\tbreak;\n\t\t}\n\t}\n\tif (!found)\n\t\treturn 1;\n\tif (prctl(PR_CAPBSET_DROP, i)) {\n\t\tperror(\"prctl\");\n\t\treturn 1;\n\t}\n\treturn 0;\n}\n\nint main(int argc, char *argv[])\n{\n\tif (argc\u003c2)\n\t\treturn usage(argv[0]);\n\tif (strcmp(argv[1], \"get\")\u003d\u003d0)\n\t\treturn getbcap();\n\tif (strcmp(argv[1], \"drop\")!\u003d0 || argc\u003c3)\n\t\treturn usage(argv[0]);\n\tif (capdrop(argv[2])) {\n\t\tprintf(\"unknown capability\\n\");\n\t\treturn 1;\n\t}\n\treturn execl(\"/bin/bash\", \"/bin/bash\", NULL);\n}\n************************************************************\n\n[serue@us.ibm.com: fix typo]\nSigned-off-by: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: Andrew G. Morgan \u003cmorgan@kernel.org\u003e\nCc: Stephen Smalley \u003csds@tycho.nsa.gov\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nCc: Chris Wright \u003cchrisw@sous-sol.org\u003e\nCc: Casey Schaufler \u003ccasey@schaufler-ca.com\u003ea\nSigned-off-by: \"Serge E. Hallyn\" \u003cserue@us.ibm.com\u003e\nTested-by: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "824552574162ac00ae636fa41386b1072379ea4a", "tree": "85c595275c6007115ad002c56dbb7eb51ab67064", "parents": [ "ec4dd3eb35759f9fbeb5c1abb01403b2fde64cc9" ], "author": { "name": "Dave Hansen", "email": "haveblue@us.ibm.com", "time": "Mon Feb 04 22:28:59 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:16 2008 -0800" }, "message": "maps4: rework TASK_SIZE macros\n\nThe following replaces the earlier patches sent. It should address\nDavid Rientjes\u0027s comments, and has been compile tested on all the\narchitectures that it touches, save for parisc.\n\nFor the /proc/\u003cpid\u003e/pagemap code[1], we need to able to query how\nmuch virtual address space a particular task has. The trick is\nthat we do it through /proc and can\u0027t use TASK_SIZE since it\nreferences \"current\" on some arches. The process opening the\n/proc file might be a 32-bit process opening a 64-bit process\u0027s\npagemap file.\n\nx86_64 already has a TASK_SIZE_OF() macro:\n\n#define TASK_SIZE_OF(child) ((test_tsk_thread_flag(child, TIF_IA32)) ? IA32_PAGE_OFFSET : TASK_SIZE64)\n\nI\u0027d like to have that for other architectures. So, add it\nfor all the architectures that actually use \"current\" in\ntheir TASK_SIZE. For the others, just add a quick #define\nin sched.h to use plain old TASK_SIZE.\n\n1. http://www.linuxworld.com/news/2007/042407-kernel.html\n\n- MIPS portion from Ralf Baechle \u003cralf@linux-mips.org\u003e\n\n[akpm@linux-foundation.org: fix mips build]\nSigned-off-by: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\nSigned-off-by: Matt Mackall \u003cmpm@selenic.com\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Dave Hansen \u003chaveblue@us.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": "ed5d2cac114202fe2978a9cbcab8f5032796d538", "tree": "aa9aaea1aa0945bd9159685d1b04897d105a90c9", "parents": [ "f558b7e408026eb3c6afcd0e8fc1f7fe31195a6a" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Mon Feb 04 22:27:24 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:07 2008 -0800" }, "message": "exec: rework the group exit and fix the race with kill\n\nAs Roland pointed out, we have the very old problem with exec. de_thread()\nsets SIGNAL_GROUP_EXIT, kills other threads, changes -\u003egroup_leader and then\nclears signal-\u003eflags. All signals (even fatal ones) sent in this window\n(which is not too small) will be lost.\n\nWith this patch exec doesn\u0027t abuse SIGNAL_GROUP_EXIT. signal_group_exit(),\nthe new helper, should be used to detect exit_group() or exec() in progress.\nIt can have more users, but this patch does only strictly necessary changes.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Robin Holt \u003cholt@sgi.com\u003e\nCc: Roland McGrath \u003croland@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": "59714d65dfbc86d5cb93adc5bac57a921cc2fa84", "tree": "10eda85ccab88fb707d6c6b4f4fb7f2e9bd1f4e1", "parents": [ "0ccf831cbee94df9c5006dd46248c0f07847dd7c" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Mon Feb 04 22:27:21 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:07 2008 -0800" }, "message": "get_task_comm(): return the result\n\nIt was dumb to make get_task_comm() return void. Change it to return a\npointer to the resulting output for caller convenience.\n\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Roland McGrath \u003croland@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": "4746ec5b01ed07205a91e4f7ed9de9d70f371407", "tree": "7a3a836b6178ccab24801e90b69c1159b2c23099", "parents": [ "c2a7780efe37d01bdb3facc85a94663e6d67d4a8" ], "author": { "name": "Eric Paris", "email": "eparis@redhat.com", "time": "Tue Jan 08 10:06:53 2008 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Feb 01 14:06:51 2008 -0500" }, "message": "[AUDIT] add session id to audit messages\n\nIn order to correlate audit records to an individual login add a session\nid. This is incremented every time a user logs in and is included in\nalmost all messages which currently output the auid. The field is\nlabeled ses\u003d or oses\u003d\n\nSigned-off-by: Eric Paris \u003ceparis@redhat.com\u003e\n" }, { "commit": "bfef93a5d1fb5654fe2025276c55e202d10b5255", "tree": "573d8153c5d5216b0c4007b652286eeddd3c0987", "parents": [ "0c11b9428f619ab377c92eff2f160a834a6585dd" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu Jan 10 04:53:18 2008 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Feb 01 14:05:28 2008 -0500" }, "message": "[PATCH] get rid of loginuid races\n\nKeeping loginuid in audit_context is racy and results in messier\ncode. Taken to task_struct, out of the way of -\u003eaudit_context\nchanges.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "75659ca0c10992dcb39258518368a0f6f56e935d", "tree": "5d014ceb2f10158061a23d0d976f9a613d85e659", "parents": [ "fbdde7bd274d74729954190f99afcb1e3d9bbfba", "2dfe485a2c8afa54cb069fcf48476f6c90ea3fdf" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Feb 01 11:45:47 2008 +1100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Feb 01 11:45:47 2008 +1100" }, "message": "Merge branch \u0027task_killable\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc\n\n* \u0027task_killable\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc: (22 commits)\n Remove commented-out code copied from NFS\n NFS: Switch from intr mount option to TASK_KILLABLE\n Add wait_for_completion_killable\n Add wait_event_killable\n Add schedule_timeout_killable\n Use mutex_lock_killable in vfs_readdir\n Add mutex_lock_killable\n Use lock_page_killable\n Add lock_page_killable\n Add fatal_signal_pending\n Add TASK_WAKEKILL\n exit: Use task_is_*\n signal: Use task_is_*\n sched: Use task_contributes_to_load, TASK_ALL and TASK_NORMAL\n ptrace: Use task_is_*\n power: Use task_is_*\n wait: Use TASK_NORMAL\n proc/base.c: Use task_is_*\n proc/array.c: Use TASK_REPORT\n perfmon: Use task_is_*\n ...\n\nFixed up conflicts in NFS/sunrpc manually..\n" }, { "commit": "95c354fe9f7d6decc08a92aa26eb233ecc2155bf", "tree": "ec9267032ea875e84216cfb20acb2cfc7c62149f", "parents": [ "a95d67f87e1a5f1b4429be3ba3bf7b4051657908" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Wed Jan 30 13:31:20 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jan 30 13:31:20 2008 +0100" }, "message": "spinlock: lockbreak cleanup\n\nThe break_lock data structure and code for spinlocks is quite nasty.\nNot only does it double the size of a spinlock but it changes locking to\na potentially less optimal trylock.\n\nPut all of that under CONFIG_GENERIC_LOCKBREAK, and introduce a\n__raw_spin_is_contended that uses the lock data itself to determine whether\nthere are waiters on the lock, to be used if CONFIG_GENERIC_LOCKBREAK is\nnot set.\n\nRename need_lockbreak to spin_needbreak, make it use spin_is_contended to\ndecouple it from the spinlock implementation, and make it typesafe (rwlocks\ndo not have any need_lockbreak sites -- why do they even get bloated up\nwith that break_lock then?).\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "fadad878cc0640cc9cd5569998bf54b693f7b38b", "tree": "9ad8c65d458d45f970f7e78cd1512c0e7da58def", "parents": [ "521f3bbdba6b92582ef8047df01b156668343542" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Jan 24 08:54:47 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Jan 28 10:50:36 2008 +0100" }, "message": "kernel: add CLONE_IO to specifically request sharing of IO contexts\n\nsyslets (or other threads/processes that want io context sharing) can\nset this to enforce sharing of io context.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "fd0928df98b9578be8a786ac0cb78a47a5e17a20", "tree": "70a34cf207bea1bec28e59cf0dba7d20e7f8b0f1", "parents": [ "91525300baf162e83e923b09ca286f9205e21522" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Jan 24 08:52:45 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Jan 28 10:50:29 2008 +0100" }, "message": "ioprio: move io priority from task_struct to io_context\n\nThis is where it belongs and then it doesn\u0027t take up space for a\nprocess that doesn\u0027t do IO.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "6d082592b62689fb91578d0338d04a9f50991990", "tree": "facef621798752724be64c3ded31a3c3fded1643", "parents": [ "286100a6cf1c1f692e5f81d14b364ff12b7662f5" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Fri Jan 25 21:08:35 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:35 2008 +0100" }, "message": "sched: keep total / count stats in addition to the max for\n\nRight now, the linux kernel (with scheduler statistics enabled) keeps track\nof the maximum time a process is waiting to be scheduled. While the maximum\nis a very useful metric, tracking average and total is equally useful\n(at least for latencytop) to figure out the accumulated effect of scheduler\ndelays. The accumulated effect is important to judge the performance impact\nof scheduler tuning/behavior.\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "286100a6cf1c1f692e5f81d14b364ff12b7662f5", "tree": "00a6d3530bddfd522e89154ba7a6a75f7fb83932", "parents": [ "5973e5b954848c63855a357ad4ff39882e3904f7" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Jan 25 21:08:34 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:34 2008 +0100" }, "message": "sched, futex: detach sched.h and futex.h\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "90739081ef8d5495d50abba9c5d333be9acd872a", "tree": "37dc5c626940a4bad6d9ffad81b7be12dc44f054", "parents": [ "9745512ce79de686df354dc70a8d1a74d801892d" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:34 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:34 2008 +0100" }, "message": "softlockup: fix signedness\n\nfix softlockup tunables signedness.\n\nmark tunables read-mostly.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9745512ce79de686df354dc70a8d1a74d801892d", "tree": "9b64e2b2e6d2ae534beef136922082f21701c7b9", "parents": [ "326587b840785c60f5dc18557235a23bafefd620" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Fri Jan 25 21:08:34 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:34 2008 +0100" }, "message": "sched: latencytop support\n\nLatencyTOP kernel infrastructure; it measures latencies in the\nscheduler and tracks it system wide and per process.\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "48d5e258216f1c7713633439beb98a38c7290649", "tree": "6f8c98785015d56337e87ed56b23d39feeeaf846", "parents": [ "614ee1f61f667b02165c1ae0c1357048dc6d94a0" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jan 25 21:08:31 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:31 2008 +0100" }, "message": "sched: rt throttling vs no_hz\n\nWe need to teach no_hz about the rt throttling because its tick driven.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6f505b16425a51270058e4a93441fe64de3dd435", "tree": "be21e711d93bc4d088b97c4a4f585a5044dbaa7d", "parents": [ "fa85ae2418e6843953107cd6a06f645752829bc0" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jan 25 21:08:30 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:30 2008 +0100" }, "message": "sched: rt group scheduling\n\nExtend group scheduling to also cover the realtime classes. It uses the time\nlimiting introduced by the previous patch to allow multiple realtime groups.\n\nThe hard time limit is required to keep behaviour deterministic.\n\nThe algorithms used make the realtime scheduler O(tg), linear scaling wrt the\nnumber of task groups. This is the worst case behaviour I can\u0027t seem to get out\nof, the avg. case of the algorithms can be improved, I focused on correctness\nand worst case.\n\n[ akpm@linux-foundation.org: move side-effects out of BUG_ON(). ]\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fa85ae2418e6843953107cd6a06f645752829bc0", "tree": "004130ac471247a29d3f6adfbfe61c474e725779", "parents": [ "8f4d37ec073c17e2d4aa8851df5837d798606d6f" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jan 25 21:08:29 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:29 2008 +0100" }, "message": "sched: rt time limit\n\nVery simple time limit on the realtime scheduling classes.\nAllow the rq\u0027s realtime class to consume sched_rt_ratio of every\nsched_rt_period slice. If the class exceeds this quota the fair class\nwill preempt the realtime class.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8f4d37ec073c17e2d4aa8851df5837d798606d6f", "tree": "a9ac9063eca53e4d0110e8086f55241ea70ba993", "parents": [ "02b67cc3ba36bdba351d6c3a00593f4ec550d9d3" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jan 25 21:08:29 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:29 2008 +0100" }, "message": "sched: high-res preemption tick\n\nUse HR-timers (when available) to deliver an accurate preemption tick.\n\nThe regular scheduler tick that runs at 1/HZ can be too coarse when nice\nlevel are used. The fairness system will still keep the cpu utilisation \u0027fair\u0027\nby then delaying the task that got an excessive amount of CPU time but try to\nminimize this by delivering preemption points spot-on.\n\nThe average frequency of this extra interrupt is sched_latency / nr_latency.\nWhich need not be higher than 1/HZ, its just that the distribution within the\nsched_latency period is important.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "02b67cc3ba36bdba351d6c3a00593f4ec550d9d3", "tree": "5185ad2d780974dc864f12d81d6c8b9fec73097b", "parents": [ "03319ec8b06849051747a17aa2a0f9aba9277980" ], "author": { "name": "Herbert Xu", "email": "herbert@gondor.apana.org.au", "time": "Fri Jan 25 21:08:28 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:28 2008 +0100" }, "message": "sched: do not do cond_resched() when CONFIG_PREEMPT\n\nWhy do we even have cond_resched when real preemption\nis on? It seems to be a waste of space and time.\n\nremove cond_resched with CONFIG_PREEMPT on.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "78f2c7db6068fd6ef75b8c120f04a388848eacb5", "tree": "994e8082a01c78e691bacb90c0f8368823c87767", "parents": [ "fa717060f1ab7eb6570f2fb49136f838fc9195a9" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jan 25 21:08:27 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:27 2008 +0100" }, "message": "sched: SCHED_FIFO/SCHED_RR watchdog timer\n\nIntroduce a new rlimit that allows the user to set a runtime timeout on\nreal-time tasks their slice. Once this limit is exceeded the task will receive\nSIGXCPU.\n\nSo it measures runtime since the last sleep.\n\nInput and ideas by Thomas Gleixner and Lennart Poettering.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCC: Lennart Poettering \u003cmzxreary@0pointer.de\u003e\nCC: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCC: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fa717060f1ab7eb6570f2fb49136f838fc9195a9", "tree": "0338460dae3116563645e3bfa1ff5100d39826f8", "parents": [ "8eb703e4f33488bf75829564d51d427e17f7cd4c" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jan 25 21:08:27 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:27 2008 +0100" }, "message": "sched: sched_rt_entity\n\nMove the task_struct members specific to rt scheduling together.\nA future optimization could be to put sched_entity and sched_rt_entity\ninto a union.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCC: Srivatsa Vaddagiri \u003cvatsa@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e260be673a15b6125068270e0216a3bfbfc12f87", "tree": "f50760606d395bf6faa9e865f814761a3c88d32c", "parents": [ "e0ecfa7917cafe72f4a75f87e8bb5d8d51dc534f" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Fri Jan 25 21:08:24 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:24 2008 +0100" }, "message": "Preempt-RCU: implementation\n\nThis patch implements a new version of RCU which allows its read-side\ncritical sections to be preempted. It uses a set of counter pairs\nto keep track of the read-side critical sections and flips them\nwhen all tasks exit read-side critical section. The details\nof this implementation can be found in this paper -\n\n\thttp://www.rdrop.com/users/paulmck/RCU/OLSrtRCU.2006.08.11a.pdf\n\nand the article-\n\n\thttp://lwn.net/Articles/253651/\n\nThis patch was developed as a part of the -rt kernel development and\nmeant to provide better latencies when read-side critical sections of\nRCU don\u0027t disable preemption. As a consequence of keeping track of RCU\nreaders, the readers have a slight overhead (optimizations in the paper).\nThis implementation co-exists with the \"classic\" RCU implementations\nand can be switched to at compiler.\n\nAlso includes RCU tracing summarized in debugfs.\n\n[ akpm@linux-foundation.org: build fixes on non-preempt architectures ]\n\nSigned-off-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nSigned-off-by: Dipankar Sarma \u003cdipankar@in.ibm.com\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@us.ibm.com\u003e\nReviewed-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cb46984504048db946cd551c261df4e70d59a8ea", "tree": "e07343cc5967f74370c6b0290b67a225d868a99d", "parents": [ "9a897c5a6701bcb6f099f7ca20194999102729fd" ], "author": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Jan 25 21:08:22 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:22 2008 +0100" }, "message": "sched: RT-balance, add new methods to sched_class\n\nDmitry Adamushko found that the current implementation of the RT\nbalancing code left out changes to the sched_setscheduler and\nrt_mutex_setprio.\n\nThis patch addresses this issue by adding methods to the schedule classes\nto handle being switched out of (switched_from) and being switched into\n(switched_to) a sched_class. Also a method for changing of priorities\nis also added (prio_changed).\n\nThis patch also removes some duplicate logic between rt_mutex_setprio and\nsched_setscheduler.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9a897c5a6701bcb6f099f7ca20194999102729fd", "tree": "9c5415d5e2dd115660200cbd246fe1343cd5cd5c", "parents": [ "4bf0b77158d581c952af237aec79d0604b78fe27" ], "author": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Jan 25 21:08:22 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:22 2008 +0100" }, "message": "sched: RT-balance, replace hooks with pre/post schedule and wakeup methods\n\nTo make the main sched.c code more agnostic to the schedule classes.\nInstead of having specific hooks in the schedule code for the RT class\nbalancing. They are replaced with a pre_schedule, post_schedule\nand task_wake_up methods. These methods may be used by any of the classes\nbut currently, only the sched_rt class implements them.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "57d885fea0da0e9541d7730a9e1dcf734981a173", "tree": "80f08ea6ed506e2aac30c89b8ae1eee7f008a378", "parents": [ "7f51f298204ec0528422cd9b23feac12612c5665" ], "author": { "name": "Gregory Haskins", "email": "ghaskins@novell.com", "time": "Fri Jan 25 21:08:18 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:18 2008 +0100" }, "message": "sched: add sched-domain roots\n\nWe add the notion of a root-domain which will be used later to rescope\nglobal variables to per-domain variables. Each exclusive cpuset\nessentially defines an island domain by fully partitioning the member cpus\nfrom any other cpuset. However, we currently still maintain some\npolicy/state as global variables which transcend all cpusets. Consider,\nfor instance, rt-overload state.\n\nWhenever a new exclusive cpuset is created, we also create a new\nroot-domain object and move each cpu member to the root-domain\u0027s span.\nBy default the system creates a single root-domain with all cpus as\nmembers (mimicking the global state we have today).\n\nWe add some plumbing for storing class specific data in our root-domain.\nWhenever a RQ is switching root-domains (because of repartitioning) we\ngive each sched_class the opportunity to remove any state from its old\ndomain and add state to the new one. This logic doesn\u0027t have any clients\nyet but it will later in the series.\n\nSigned-off-by: Gregory Haskins \u003cghaskins@novell.com\u003e\nCC: Christoph Lameter \u003cclameter@sgi.com\u003e\nCC: Paul Jackson \u003cpj@sgi.com\u003e\nCC: Simon Derr \u003csimon.derr@bull.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e7693a362ec84bb5b6fd441d8a8b4b9d568a7a0c", "tree": "078940540641a59aaf199695bfc6de3f062a987b", "parents": [ "697f0a487f294e634a342764472b79375bb3158a" ], "author": { "name": "Gregory Haskins", "email": "ghaskins@novell.com", "time": "Fri Jan 25 21:08:09 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:09 2008 +0100" }, "message": "sched: de-SCHED_OTHER-ize the RT path\n\nThe current wake-up code path tries to determine if it can optimize the\nwake-up to \"this_cpu\" by computing load calculations. The problem is that\nthese calculations are only relevant to SCHED_OTHER tasks where load is king.\nFor RT tasks, priority is king. So the load calculation is completely wasted\nbandwidth.\n\nTherefore, we create a new sched_class interface to help with\npre-wakeup routing decisions and move the load calculation as a function\nof CFS task\u0027s class.\n\nSigned-off-by: Gregory Haskins \u003cghaskins@novell.com\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "73fe6aae84400e2b475e2a1dc4e8592cd3ed6e69", "tree": "97c7d6a866d75563082c422491fc423b47aca9d7", "parents": [ "c7a1e46aa9782a947cf2ed506245d43396dbf991" ], "author": { "name": "Gregory Haskins", "email": "ghaskins@novell.com", "time": "Fri Jan 25 21:08:07 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:07 2008 +0100" }, "message": "sched: add RT-balance cpu-weight\n\nSome RT tasks (particularly kthreads) are bound to one specific CPU.\nIt is fairly common for two or more bound tasks to get queued up at the\nsame time. Consider, for instance, softirq_timer and softirq_sched. A\ntimer goes off in an ISR which schedules softirq_thread to run at RT50.\nThen the timer handler determines that it\u0027s time to smp-rebalance the\nsystem so it schedules softirq_sched to run. So we are in a situation\nwhere we have two RT50 tasks queued, and the system will go into\nrt-overload condition to request other CPUs for help.\n\nThis causes two problems in the current code:\n\n1) If a high-priority bound task and a low-priority unbounded task queue\n up behind the running task, we will fail to ever relocate the unbounded\n task because we terminate the search on the first unmovable task.\n\n2) We spend precious futile cycles in the fast-path trying to pull\n overloaded tasks over. It is therefore optimial to strive to avoid the\n overhead all together if we can cheaply detect the condition before\n overload even occurs.\n\nThis patch tries to achieve this optimization by utilizing the hamming\nweight of the task-\u003ecpus_allowed mask. A weight of 1 indicates that\nthe task cannot be migrated. We will then utilize this information to\nskip non-migratable tasks and to eliminate uncessary rebalance attempts.\n\nWe introduce a per-rq variable to count the number of migratable tasks\nthat are currently running. We only go into overload if we have more\nthan one rt task, AND at least one of them is migratable.\n\nIn addition, we introduce a per-task variable to cache the cpus_allowed\nweight, since the hamming calculation is probably relatively expensive.\nWe only update the cached value when the mask is updated which should be\nrelatively infrequent, especially compared to scheduling frequency\nin the fast path.\n\nSigned-off-by: Gregory Haskins \u003cghaskins@novell.com\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "82a1fcb90287052aabfa235e7ffc693ea003fe69", "tree": "826b464a248bebe259fe787f7b8d17d5626cf2c5", "parents": [ "d0d23b5432fe61229dd3641c5e94d4130bc4e61b" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:02 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:02 2008 +0100" }, "message": "softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks\n\nthis patch extends the soft-lockup detector to automatically\ndetect hung TASK_UNINTERRUPTIBLE tasks. Such hung tasks are\nprinted the following way:\n\n ------------------\u003e\n INFO: task prctl:3042 blocked for more than 120 seconds.\n \"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message\n prctl D fd5e3793 0 3042 2997\n f6050f38 00000046 00000001 fd5e3793 00000009 c06d8264 c06dae80 00000286\n f6050f40 f6050f00 f7d34d90 f7d34fc8 c1e1be80 00000001 f6050000 00000000\n f7e92d00 00000286 f6050f18 c0489d1a f6050f40 00006605 00000000 c0133a5b\n Call Trace:\n [\u003cc04883a5\u003e] schedule_timeout+0x6d/0x8b\n [\u003cc04883d8\u003e] schedule_timeout_uninterruptible+0x15/0x17\n [\u003cc0133a76\u003e] msleep+0x10/0x16\n [\u003cc0138974\u003e] sys_prctl+0x30/0x1e2\n [\u003cc0104c52\u003e] sysenter_past_esp+0x5f/0xa5\n \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n 2 locks held by prctl/3042:\n #0: (\u0026sb-\u003es_type-\u003ei_mutex_key#5){--..}, at: [\u003cc0197d11\u003e] do_fsync+0x38/0x7a\n #1: (jbd_handle){--..}, at: [\u003cc01ca3d2\u003e] journal_start+0xc7/0xe9\n \u003c------------------\n\nthe current default timeout is 120 seconds. Such messages are printed\nup to 10 times per bootup. If the system has crashed already then the\nmessages are not printed.\n\nif lockdep is enabled then all held locks are printed as well.\n\nthis feature is a natural extension to the softlockup-detector (kernel\nlocked up without scheduling) and to the NMI watchdog (kernel locked up\nwith IRQs disabled).\n\n[ Gautham R Shenoy \u003cego@in.ibm.com\u003e: CPU hotplug fixes. ]\n[ Andrew Morton \u003cakpm@linux-foundation.org\u003e: build warning fix. ]\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\n" }, { "commit": "6b2d7700266b9402e12824e11e0099ae6a4a6a79", "tree": "d72c25b03150901ad8643f931186a11eb85635dc", "parents": [ "a183561567b5446d3362b4839bd4f744f4b2af1e" ], "author": { "name": "Srivatsa Vaddagiri", "email": "vatsa@linux.vnet.ibm.com", "time": "Fri Jan 25 21:08:00 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 25 21:08:00 2008 +0100" }, "message": "sched: group scheduler, fix fairness of cpu bandwidth allocation for task groups\n\nThe current load balancing scheme isn\u0027t good enough for precise\ngroup fairness.\n\nFor example: on a 8-cpu system, I created 3 groups as under:\n\n\ta \u003d 8 tasks (cpu.shares \u003d 1024)\n\tb \u003d 4 tasks (cpu.shares \u003d 1024)\n\tc \u003d 3 tasks (cpu.shares \u003d 1024)\n\na, b and c are task groups that have equal weight. We would expect each\nof the groups to receive 33.33% of cpu bandwidth under a fair scheduler.\n\nThis is what I get with the latest scheduler git tree:\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n--------------------------------------------------------------------------------\nCol1 | Col2 | Col3 | Col4\n------|---------|-------|-------------------------------------------------------\na | 277.676 | 57.8% | 54.1% 54.1% 54.1% 54.2% 56.7% 62.2% 62.8% 64.5%\nb | 116.108 | 24.2% | 47.4% 48.1% 48.7% 49.3%\nc | 86.326 | 18.0% | 47.5% 47.9% 48.5%\n--------------------------------------------------------------------------------\n\nExplanation of o/p:\n\nCol1 -\u003e Group name\nCol2 -\u003e Cumulative execution time (in seconds) received by all tasks of that\n\tgroup in a 60sec window across 8 cpus\nCol3 -\u003e CPU bandwidth received by the group in the 60sec window, expressed in\n percentage. Col3 data is derived as:\n\t\tCol3 \u003d 100 * Col2 / (NR_CPUS * 60)\nCol4 -\u003e CPU bandwidth received by each individual task of the group.\n\t\tCol4 \u003d 100 * cpu_time_recd_by_task / 60\n\n[I can share the test case that produces a similar o/p if reqd]\n\nThe deviation from desired group fairness is as below:\n\n\ta \u003d +24.47%\n\tb \u003d -9.13%\n\tc \u003d -15.33%\n\nwhich is quite high.\n\nAfter the patch below is applied, here are the results:\n\n--------------------------------------------------------------------------------\nCol1 | Col2 | Col3 | Col4\n------|---------|-------|-------------------------------------------------------\na | 163.112 | 34.0% | 33.2% 33.4% 33.5% 33.5% 33.7% 34.4% 34.8% 35.3%\nb | 156.220 | 32.5% | 63.3% 64.5% 66.1% 66.5%\nc | 160.653 | 33.5% | 85.8% 90.6% 91.4%\n--------------------------------------------------------------------------------\n\nDeviation from desired group fairness is as below:\n\n\ta \u003d +0.67%\n\tb \u003d -0.83%\n\tc \u003d +0.17%\n\nwhich is far better IMO. Most of other runs have yielded a deviation within\n+-2% at the most, which is good.\n\nWhy do we see bad (group) fairness with current scheuler?\n\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\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nCurrently cpu\u0027s weight is just the summation of individual task weights.\nThis can yield incorrect results. For ex: consider three groups as below\non a 2-cpu system:\n\n\tCPU0\tCPU1\n---------------------------\n\tA (10) B(5)\n\t\tC(5)\n---------------------------\n\nGroup A has 10 tasks, all on CPU0, Group B and C have 5 tasks each all\nof which are on CPU1. Each task has the same weight (NICE_0_LOAD \u003d\n1024).\n\nThe current scheme would yield a cpu weight of 10240 (10*1024) for each cpu and\nthe load balancer will think both CPUs are perfectly balanced and won\u0027t\nmove around any tasks. This, however, would yield this bandwidth:\n\n\tA \u003d 50%\n\tB \u003d 25%\n\tC \u003d 25%\n\nwhich is not the desired result.\n\nWhat\u0027s changing in the patch?\n\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\t- How cpu weights are calculated when CONFIF_FAIR_GROUP_SCHED is\n\t defined (see below)\n\t- API Change\n\t\t- Two tunables introduced in sysfs (under SCHED_DEBUG) to\n\t\t control the frequency at which the load balance monitor\n\t\t thread runs.\n\nThe basic change made in this patch is how cpu weight (rq-\u003eload.weight) is\ncalculated. Its now calculated as the summation of group weights on a cpu,\nrather than summation of task weights. Weight exerted by a group on a\ncpu is dependent on the shares allocated to it and also the number of\ntasks the group has on that cpu compared to the total number of\n(runnable) tasks the group has in the system.\n\nLet,\n\tW(K,i) \u003d Weight of group K on cpu i\n\tT(K,i) \u003d Task load present in group K\u0027s cfs_rq on cpu i\n\tT(K) \u003d Total task load of group K across various cpus\n\tS(K) \t\u003d Shares allocated to group K\n\tNRCPUS\t\u003d Number of online cpus in the scheduler domain to\n\t \t which group K is assigned.\n\nThen,\n\tW(K,i) \u003d S(K) * NRCPUS * T(K,i) / T(K)\n\nA load balance monitor thread is created at bootup, which periodically\nruns and adjusts group\u0027s weight on each cpu. To avoid its overhead, two\nmin/max tunables are introduced (under SCHED_DEBUG) to control the rate\nat which it runs.\n\nFixes from: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\n\n- don\u0027t start the load_balance_monitor when there is only a single cpu.\n- rename the kthread because its currently longer than TASK_COMM_LEN\n\nSigned-off-by: Srivatsa Vaddagiri \u003cvatsa@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "eb41d9465cdafee45e0cb30f3b7338646221908e", "tree": "a2e5d62c8b1bd48d5b20515b541096709fe184e0", "parents": [ "386f275f5d097758f867bc99ddeaeb7a03b6b190" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@vrfy.org", "time": "Fri Nov 02 13:47:53 2007 +0100" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Jan 24 20:40:18 2008 -0800" }, "message": "fix struct user_info export\u0027s sysfs interaction\n\nClean up the use of ksets and kobjects. Kobjects are instances of\nobjects (like struct user_info), ksets are collections of objects of a\nsimilar type (like the uids directory containing the user_info directories).\nSo, use kobjects for the user_info directories, and a kset for the \"uids\"\ndirectory.\n\nOn object cleanup, the final kobject_put() was missing.\n\nCc: Dhaval Giani \u003cdhaval@linux.vnet.ibm.com\u003e\nCc: Srivatsa Vaddagiri \u003cvatsa@linux.vnet.ibm.com\u003e\nSigned-off-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "84427eaef1fb91704c7112bdb598c810003b99f3", "tree": "bf22a7186295fcb6dc6bced34cfa73aa74b27300", "parents": [ "974a9f0b47da74e28f68b9c8645c3786aa5ace1a" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Thu Jan 10 12:52:04 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Jan 13 09:56:43 2008 -0800" }, "message": "remove task_ppid_nr_ns\n\ntask_ppid_nr_ns is called in three places. One of these should never\nhave called it. In the other two, using it broke the existing\nsemantics. This was presumably accidental. If the function had not\nbeen there, it would have been much more obvious to the eye that those\npatches were changing the behavior. We don\u0027t need this function.\n\nIn task_state, the pid of the ptracer is not the ppid of the ptracer.\n\nIn do_task_stat, ppid is the tgid of the real_parent, not its pid.\nI also moved the call outside of lock_task_sighand, since it doesn\u0027t\nneed it.\n\nIn sys_getppid, ppid is the tgid of the real_parent, not its pid.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "294d5cc233d81ec4aec77ebc60dc5752a3d0082a", "tree": "9b75eba307934d5cb156202617bd4bfa7c7f01ee", "parents": [ "da78451190bdaae0e67d6c96b1ec3366abc45474" ], "author": { "name": "Matthew Wilcox", "email": "matthew@wil.cx", "time": "Thu Dec 06 11:59:46 2007 -0500" }, "committer": { "name": "Matthew Wilcox", "email": "willy@linux.intel.com", "time": "Thu Dec 06 17:40:07 2007 -0500" }, "message": "Add schedule_timeout_killable\n\nSigned-off-by: Matthew Wilcox \u003cwilly@linux.intel.com\u003e\n" }, { "commit": "f776d12dd16da1b0cd55a1240002c1b31f315d5d", "tree": "b57a69c2143361edf6b2c2d4fd1b6e8616c8f347", "parents": [ "f021a3c2b14d0dd082c2cee890c204d9e1dee52b" ], "author": { "name": "Matthew Wilcox", "email": "matthew@wil.cx", "time": "Thu Dec 06 11:15:50 2007 -0500" }, "committer": { "name": "Matthew Wilcox", "email": "willy@linux.intel.com", "time": "Thu Dec 06 17:35:35 2007 -0500" }, "message": "Add fatal_signal_pending\n\nLike signal_pending, but it\u0027s only true for signals which are fatal to\nthis process\n\nSigned-off-by: Matthew Wilcox \u003cwilly@linux.intel.com\u003e\n" }, { "commit": "f021a3c2b14d0dd082c2cee890c204d9e1dee52b", "tree": "aa37eb6845605de6c69a70ac8cc3b22e2b0170a6", "parents": [ "338077e54e17e656da470a84724b773816207316" ], "author": { "name": "Matthew Wilcox", "email": "matthew@wil.cx", "time": "Thu Dec 06 11:13:16 2007 -0500" }, "committer": { "name": "Matthew Wilcox", "email": "willy@linux.intel.com", "time": "Thu Dec 06 17:35:28 2007 -0500" }, "message": "Add TASK_WAKEKILL\n\nSet TASK_WAKEKILL for TASK_STOPPED and TASK_TRACED, add TASK_KILLABLE and\nuse TASK_WAKEKILL in signal_wake_up()\n\nSigned-off-by: Matthew Wilcox \u003cwilly@linux.intel.com\u003e\n" }, { "commit": "92a1f4bc7af13949d2185449307088cf98b4755d", "tree": "db5a1a87a0170ae5dcba05228f5e3c1a78612fcf", "parents": [ "4a6e9e2ce822c9f597b3036887f6cf5fa3a79375" ], "author": { "name": "Matthew Wilcox", "email": "matthew@wil.cx", "time": "Thu Dec 06 10:55:25 2007 -0500" }, "committer": { "name": "Matthew Wilcox", "email": "willy@linux.intel.com", "time": "Thu Dec 06 17:07:29 2007 -0500" }, "message": "Add macros to replace direct uses of TASK_ flags\n\nWith the changes to support TASK_KILLABLE, -\u003estate becomes a bitmask, and\nmoving these tests to convenience macros will fix all the users.\n\nSigned-off-by: Matthew Wilcox \u003cwilly@linux.intel.com\u003e\n" }, { "commit": "deaf2227ddf657a260e923db44b6f0974d9bb782", "tree": "2743a42c23a2341476a34522a6fdffa7848553d9", "parents": [ "9a4e715914f07e56cbfa6f2b544a68365d51c3ef" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 28 15:52:56 2007 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 28 15:52:56 2007 +0100" }, "message": "sched: clean up, move __sched_text_start/end to sched.h\n\nmove __sched_text_start/end to sched.h. No code changed:\n\n text data bss dec hex filename\n 26582 2310 28 28920 70f8 sched.o.before\n 26582 2310 28 28920 70f8 sched.o.after\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e6fe6649b4ec11aa3075e394b4d8743eebe1f64c", "tree": "e04e8b2206dfad58e784ea6e4550f98f318aff0b", "parents": [ "b82d9fdd848abfbe7263a4ecd9bbb55e575100a6" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Nov 09 22:39:39 2007 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 09 22:39:39 2007 +0100" }, "message": "sched: proper prototype for kernel/sched.c:migration_init()\n\nThis patch adds a proper prototype for migration_init() in\ninclude/linux/sched.h\n\nSince there\u0027s no point in always returning 0 to a caller that doesn\u0027t check\nthe return value it also changes the function to return void.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b82d9fdd848abfbe7263a4ecd9bbb55e575100a6", "tree": "7d4c525cc4bd633c84abcfd8d934c84e5dc9ce7c", "parents": [ "3c90e6e99b08f01d5684a3a07cceae6a543e4fa8" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Nov 09 22:39:39 2007 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 09 22:39:39 2007 +0100" }, "message": "sched: avoid large irq-latencies in smp-balancing\n\nSMP balancing is done with IRQs disabled and can iterate the full rq.\nWhen rqs are large this can cause large irq-latencies. Limit the nr of\niterations on each run.\n\nThis fixes a scheduling latency regression reported by the -rt folks.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nTested-by: Gregory Haskins \u003cghaskins@novell.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3e3e13f399ac8060a20d14d210a28dc02dda372e", "tree": "b560a614e926f5f90e4096b6d4743b1b5fdfccb2", "parents": [ "52d3da1ad4f442cec877fbeb83902707b56da0cf" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 09 22:39:39 2007 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 09 22:39:39 2007 +0100" }, "message": "sched: remove PREEMPT_RESTRICT\n\nremove PREEMPT_RESTRICT. (this is a separate commit so that any\nregression related to the removal itself is bisectable)\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fa13a5a1f25f671d084d8884be96fc48d9b68275", "tree": "97dae05bb5baef806a6dcbeed8b7eb5bdc61e4ae", "parents": [ "9a41785cc43d88397f787a651ed7286a33f8462f" ], "author": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Fri Nov 09 22:39:38 2007 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 09 22:39:38 2007 +0100" }, "message": "sched: restore deterministic CPU accounting on powerpc\n\nSince powerpc started using CONFIG_GENERIC_CLOCKEVENTS, the\ndeterministic CPU accounting (CONFIG_VIRT_CPU_ACCOUNTING) has been\nbroken on powerpc, because we end up counting user time twice: once in\ntimer_interrupt() and once in update_process_times().\n\nThis fixes the problem by pulling the code in update_process_times\nthat updates utime and stime into a separate function called\naccount_process_tick. If CONFIG_VIRT_CPU_ACCOUNTING is not defined,\nthere is a version of account_process_tick in kernel/timer.c that\nsimply accounts a whole tick to either utime or stime as before. If\nCONFIG_VIRT_CPU_ACCOUNTING is defined, then arch code gets to\nimplement account_process_tick.\n\nThis also lets us simplify the s390 code a bit; it means that the s390\ntimer interrupt can now call update_process_times even when\nCONFIG_VIRT_CPU_ACCOUNTING is turned on, and can just implement a\nsuitable account_process_tick().\n\naccount_process_tick() now takes the task_struct * as an argument.\nTested both with and without CONFIG_VIRT_CPU_ACCOUNTING.\n\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b2be5e96dc0b5a179cf4cb98e65cfb605752ca26", "tree": "cf229cf83afc2c30369d1751338886cf8a067b5c", "parents": [ "2cb8600e6be4281e381d39e44de4359e46333e23" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Nov 09 22:39:37 2007 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 09 22:39:37 2007 +0100" }, "message": "sched: reintroduce the sched_min_granularity tunable\n\nwe lost the sched_min_granularity tunable to a clever optimization\nthat uses the sched_latency/min_granularity ratio - but the ratio\nis quite unintuitive to users and can also crash the kernel if the\nratio is set to 0. So reintroduce the min_granularity tunable,\nwhile keeping the ratio maintained internally.\n\nno functionality changed.\n\n[ mingo@elte.hu: some fixlets. ]\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9301899be75b464ef097f0b5af7af6d9bd8f68a7", "tree": "a7053c5c0babcdbad6d4baff0551d60e5c4308af", "parents": [ "82798a17ad40df827d465329a20ace80497f9b32" ], "author": { "name": "Balbir Singh", "email": "balbir@linux.vnet.ibm.com", "time": "Tue Oct 30 00:26:32 2007 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 30 00:26:32 2007 +0100" }, "message": "sched: fix /proc/\u003cPID\u003e/stat stime/utime monotonicity, part 2\n\nExtend Peter\u0027s patch to fix accounting issues, by keeping stime\nmonotonic too.\n\nSigned-off-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nTested-by: Frans Pop \u003celendil@planet.nl\u003e\n" }, { "commit": "73a2bcb0edb9ffb0b007b3546b430e2c6e415eee", "tree": "dd84f61589c7dd21b7be973c288611ffe547f21b", "parents": [ "f7402e0361d4472535e07cfca648f2fa81d85cd2" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Oct 29 21:18:11 2007 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 29 21:18:11 2007 +0100" }, "message": "sched: keep utime/stime monotonic\n\nkeep utime/stime monotonic.\n\ncpustats use utime/stime as a ratio against sum_exec_runtime, as a\nconsequence it can happen - when the ratio changes faster than time\naccumulates - that either can be appear to go backwards.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e868171a94b637158a3930c9adfb448d0df163cd", "tree": "f6619ae1407802e8e123f28854e310bd90784865", "parents": [ "ade8c56cbd02020fecbe1684f181250a466685eb" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@sw.ru", "time": "Fri Oct 26 12:17:22 2007 +0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 26 08:42:24 2007 -0700" }, "message": "De-constify sched.h\n\n[PATCH] De-constify sched.h\n\nThis reverts commit a8972ccf00b7184a743eb6cd9bc7f3443357910c (\"sched:\nconstify sched.h\")\n\n 1) Patch doesn\u0027t change any code here, so gcc is already smart enough\n to \"feel\" constness in such simple functions.\n 2) There is no such thing as const task_struct. Anyone who think\n otherwise deserves compiler warning.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@sw.ru\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "681f3e68541d6f03e3e05d21fe15093578b8b539", "tree": "82e13a7b15a2bb15233ba964dd1eb352b007cae4", "parents": [ "e1d1484f72127a5580d37c379f6a5b2c2786434c" ], "author": { "name": "Peter Williams", "email": "pwil3058@bigpond.net.au", "time": "Wed Oct 24 18:23:51 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 24 18:23:51 2007 +0200" }, "message": "sched: isolate SMP balancing code a bit more\n\nAt the moment, a lot of load balancing code that is irrelevant to non\nSMP systems gets included during non SMP builds.\n\nThis patch addresses this issue and reduces the binary size on non\nSMP systems:\n\n text data bss dec hex filename\n 10983 28 1192 12203 2fab sched.o.before\n 10739 28 1192 11959 2eb7 sched.o.after\n\nSigned-off-by: Peter Williams \u003cpwil3058@bigpond.net.au\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e1d1484f72127a5580d37c379f6a5b2c2786434c", "tree": "e3e6529c5b9079f35b2c60bbd346a3c51c2b2c13", "parents": [ "a0f846aa76c3e03d54c1700a87cab3a46ccd71e2" ], "author": { "name": "Peter Williams", "email": "pwil3058@bigpond.net.au", "time": "Wed Oct 24 18:23:51 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 24 18:23:51 2007 +0200" }, "message": "sched: reduce balance-tasks overhead\n\nAt the moment, balance_tasks() provides low level functionality for both\n move_tasks() and move_one_task() (indirectly) via the load_balance()\nfunction (in the sched_class interface) which also provides dual\nfunctionality. This dual functionality complicates the interfaces and\ninternal mechanisms and makes the run time overhead of operations that\nare called with two run queue locks held.\n\nThis patch addresses this issue and reduces the overhead of these\noperations.\n\nSigned-off-by: Peter Williams \u003cpwil3058@bigpond.net.au\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a8972ccf00b7184a743eb6cd9bc7f3443357910c", "tree": "a5b6652a138a9f428cdff8f440c7a5bbe52e8b85", "parents": [ "b3da2a73ff5a2953a4ad8ebbf0aa7e6965ff9de2" ], "author": { "name": "Joe Perches", "email": "joe@perches.com", "time": "Wed Oct 24 18:23:50 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 24 18:23:50 2007 +0200" }, "message": "sched: constify sched.h\n\nAdd const to some struct task_struct * uses\n\nSigned-off-by: Joe Perches \u003cjoe@perches.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9a2e70572e94e21e7ec4186702d045415422bda0", "tree": "a6cd54dc559cbf6840dac4077f507a961486e21b", "parents": [ "270f722d4d5f94b02fd48eed47e57917ab00a858" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Thu Oct 18 23:40:39 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:43 2007 -0700" }, "message": "Isolate the explicit usage of signal-\u003epgrp\n\nThe pgrp field is not used widely around the kernel so it is now marked as\ndeprecated with appropriate comment.\n\nThe initialization of INIT_SIGNALS is trimmed because\na) they are set to 0 automatically;\nb) gcc cannot properly initialize two anonymous (the second one\n is the one with the session) unions. In this particular case\n to make it compile we\u0027d have to add some field initialized\n right before the .pgrp.\n\nThis is the same patch as the 1ec320afdc9552c92191d5f89fcd1ebe588334ca one\n(from Cedric), but for the pgrp field.\n\nSome progress report:\n\nWe have to deprecate the pid, tgid, session and pgrp fields on struct\ntask_struct and struct signal_struct. The session and pgrp are already\ndeprecated. The tgid value is close to being such - the worst known usage\nin in fs/locks.c and audit code. The pid field deprecation is mainly\nblocked by numerous printk-s around the kernel that print the tsk-\u003epid to\nlog.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "029190c515f15f512ac85de8fc686d4dbd0ae731", "tree": "a946f9223d17e945141fef81f94a75b38e2cc6ef", "parents": [ "2f2a3a46fcafa7a12d61454f67f932dfe7d84c60" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Thu Oct 18 23:40:20 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:41 2007 -0700" }, "message": "cpuset sched_load_balance flag\n\nAdd a new per-cpuset flag called \u0027sched_load_balance\u0027.\n\nWhen enabled in a cpuset (the default value) it tells the kernel scheduler\nthat the scheduler should provide the normal load balancing on the CPUs in\nthat cpuset, sometimes moving tasks from one CPU to a second CPU if the\nsecond CPU is less loaded and if that task is allowed to run there.\n\nWhen disabled (write \"0\" to the file) then it tells the kernel scheduler\nthat load balancing is not required for the CPUs in that cpuset.\n\nNow even if this flag is disabled for some cpuset, the kernel may still\nhave to load balance some or all the CPUs in that cpuset, if some\noverlapping cpuset has its sched_load_balance flag enabled.\n\nIf there are some CPUs that are not in any cpuset whose sched_load_balance\nflag is enabled, the kernel scheduler will not load balance tasks to those\nCPUs.\n\nMoreover the kernel will partition the \u0027sched domains\u0027 (non-overlapping\nsets of CPUs over which load balancing is attempted) into the finest\ngranularity partition that it can find, while still keeping any two CPUs\nthat are in the same shed_load_balance enabled cpuset in the same element\nof the partition.\n\nThis serves two purposes:\n 1) It provides a mechanism for real time isolation of some CPUs, and\n 2) it can be used to improve performance on systems with many CPUs\n by supporting configurations in which load balancing is not done\n across all CPUs at once, but rather only done in several smaller\n disjoint sets of CPUs.\n\nThis mechanism replaces the earlier overloading of the per-cpuset\nflag \u0027cpu_exclusive\u0027, which overloading was removed in an earlier\npatch: cpuset-remove-sched-domain-hooks-from-cpusets\n\nSee further the Documentation and comments in the code itself.\n\n[akpm@linux-foundation.org: don\u0027t be weird]\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2f2a3a46fcafa7a12d61454f67f932dfe7d84c60", "tree": "cd4fe3aed382a0557cdfb9fa0b7a3b950a01a767", "parents": [ "8990571eb573032c1192440febb17132074c5575" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Thu Oct 18 23:40:19 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:41 2007 -0700" }, "message": "Uninline the task_xid_nr_ns() calls\n\nSince these are expanded into call to pid_nr_ns() anyway, it\u0027s OK to move\nthe whole routine out-of-line. This is a cheap way to save ~100 bytes from\nvmlinux. Together with the previous two patches, it saves half-a-kilo from\nthe vmlinux.\n\nUn-inline other (currently inlined) functions must be done with additional\nperformance testing.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bac0abd6174e427404dd197cdbefece31e97329b", "tree": "68ed6bd8619552c921c9fb99e83cb04fcb235a39", "parents": [ "19b9b9b54e5f115907efd56be2c3799775a46561" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Thu Oct 18 23:40:18 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:40 2007 -0700" }, "message": "Isolate some explicit usage of task-\u003etgid\n\nWith pid namespaces this field is now dangerous to use explicitly, so hide\nit behind the helpers.\n\nAlso the pid and pgrp fields o task_struct and signal_struct are to be\ndeprecated. Unfortunately this patch cannot be sent right now as this\nleads to tons of warnings, so start isolating them, and deprecate later.\n\nActually the p-\u003etgid \u003d\u003d pid has to be changed to has_group_leader_pid(),\nbut Oleg pointed out that in case of posix cpu timers this is the same, and\nthread_group_leader() is more preferable.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nAcked-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "228ebcbe634a30aec35132ea4375721bcc41bec0", "tree": "a875976fd5bde6e2f931aa235c34c88a2738493f", "parents": [ "b488893a390edfe027bae7a46e9af8083e740668" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Thu Oct 18 23:40:16 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:40 2007 -0700" }, "message": "Uninline find_task_by_xxx set of functions\n\nThe find_task_by_something is a set of macros are used to find task by pid\ndepending on what kind of pid is proposed - global or virtual one. All of\nthem are wrappers above the most generic one - find_task_by_pid_type_ns() -\nand just substitute some args for it.\n\nIt turned out, that dereferencing the current-\u003ensproxy-\u003epid_ns construction\nand pushing one more argument on the stack inline cause kernel text size to\ngrow.\n\nThis patch moves all this stuff out-of-line into kernel/pid.c. Together\nwith the next patch it saves a bit less than 400 bytes from the .text\nsection.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "30e49c263e36341b60b735cbef5ca37912549264", "tree": "103e74c41db97476ae38cdd4ffc18e4da03f28e8", "parents": [ "b461cc03828c743aed6b3855b9ab0d39a9d54ec5" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Thu Oct 18 23:40:10 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:39 2007 -0700" }, "message": "pid namespaces: allow cloning of new namespace\n\nWhen clone() is invoked with CLONE_NEWPID, create a new pid namespace and then\ncreate a new struct pid for the new process. Allocate pid_t\u0027s for the new\nprocess in the new pid namespace and all ancestor pid namespaces. Make the\nnewly cloned process the session and process group leader.\n\nSince the active pid namespace is special and expected to be the first entry\nin pid-\u003eupid_list, preserve the order of pid namespaces.\n\nThe size of \u0027struct pid\u0027 is dependent on the the number of pid namespaces the\nprocess exists in, so we use multiple pid-caches\u0027. Only one pid cache is\ncreated during system startup and this used by processes that exist only in\ninit_pid_ns.\n\nWhen a process clones its pid namespace, we create additional pid caches as\nnecessary and use the pid cache to allocate \u0027struct pids\u0027 for that depth.\n\nNote, that with this patch the newly created namespace won\u0027t work, since the\nrest of the kernel still uses global pids, but this is to be fixed soon. Init\npid namespace still works.\n\n[oleg@tv-sign.ru: merge fix]\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b461cc03828c743aed6b3855b9ab0d39a9d54ec5", "tree": "b39ff42df1564adf800d9c4a01ba78ed14f8f9a2", "parents": [ "07543f5c75cee744b791cf7716c69571486fe753" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Thu Oct 18 23:40:09 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:39 2007 -0700" }, "message": "pid namespaces: miscellaneous preparations for pid namespaces\n\n* remove pid.h from pid_namespaces.h;\n* rework is_(cgroup|global)_init;\n* optimize (get|put)_pid_ns for init_pid_ns;\n* declare task_child_reaper to return actual reaper.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "198fe21b0a17fe9c68cb519ecc566534b04f122b", "tree": "690825669858d0f458fc137e42adf77cdf370ea4", "parents": [ "7af5729474b5b8ad385adadab78d6e723e7655a3" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Thu Oct 18 23:40:06 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:39 2007 -0700" }, "message": "pid namespaces: helpers to find the task by its numerical ids\n\nWhen searching the task by numerical id on may need to find it using global\npid (as it is done now in kernel) or by its virtual id, e.g. when sending a\nsignal to a task from one namespace the sender will specify the task\u0027s virtual\nid and we should find the task by this value.\n\n[akpm@linux-foundation.org: fix gfs2 linkage]\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7af5729474b5b8ad385adadab78d6e723e7655a3", "tree": "197f8da3e7afd65554f0c0a070eb93036b720fa8", "parents": [ "8ef047aaaeb811247a5639c92e2f2ae1221a28dd" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Thu Oct 18 23:40:06 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:39 2007 -0700" }, "message": "pid namespaces: helpers to obtain pid numbers\n\nWhen showing pid to user or getting the pid numerical id for in-kernel use the\nvalue of this id may differ depending on the namespace.\n\nThis set of helpers is used to get the global pid nr, the virtual (i.e. seen\nby task in its namespace) nr and the nr as it is seen from the specified\nnamespace.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b460cbc581a53cc088ceba80608021dd49c63c43", "tree": "83c28d0adbc15f4157c77b40fa60c40a71cb8673", "parents": [ "3743ca05ff464b8a9e345c08a6c9ce30485f9805" ], "author": { "name": "Serge E. Hallyn", "email": "serue@us.ibm.com", "time": "Thu Oct 18 23:39:52 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:37 2007 -0700" }, "message": "pid namespaces: define is_global_init() and is_container_init()\n\nis_init() is an ambiguous name for the pid\u003d\u003d1 check. Split it into\nis_global_init() and is_container_init().\n\nA cgroup init has it\u0027s tsk-\u003epid \u003d\u003d 1.\n\nA global init also has it\u0027s tsk-\u003epid \u003d\u003d 1 and it\u0027s active pid namespace\nis the init_pid_ns. But rather than check the active pid namespace,\ncompare the task structure with \u0027init_pid_ns.child_reaper\u0027, which is\ninitialized during boot to the /sbin/init process and never changes.\n\nChangelog:\n\n\t2.6.22-rc4-mm2-pidns1:\n\t- Use \u0027init_pid_ns.child_reaper\u0027 to determine if a given task is the\n\t global init (/sbin/init) process. This would improve performance\n\t and remove dependence on the task_pid().\n\n\t2.6.21-mm2-pidns2:\n\n\t- [Sukadev Bhattiprolu] Changed is_container_init() calls in {powerpc,\n\t ppc,avr32}/traps.c for the _exception() call to is_global_init().\n\t This way, we kill only the cgroup if the cgroup\u0027s init has a\n\t bug rather than force a kernel panic.\n\n[akpm@linux-foundation.org: fix comment]\n[sukadev@us.ibm.com: Use is_global_init() in arch/m32r/mm/fault.c]\n[bunk@stusta.de: kernel/pid.c: remove unused exports]\n[sukadev@us.ibm.com: Fix capability.c to work with threaded init]\nSigned-off-by: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nAcked-by: Pavel Emelianov \u003cxemul@openvz.org\u003e\nCc: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Herbert Poetzel \u003cherbert@13thfloor.at\u003e\nCc: Kirill Korotaev \u003cdev@sw.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a47afb0f9d794d525a372c8d69902147cc88222a", "tree": "7bd67280e2edc1c3b1803d4a93bee794088e9342", "parents": [ "858d72ead4864da0fb0b89b919524125ce998e27" ], "author": { "name": "Pavel Emelianov", "email": "xemul@openvz.org", "time": "Thu Oct 18 23:39:46 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:37 2007 -0700" }, "message": "pid namespaces: round up the API\n\nThe set of functions process_session, task_session, process_group and\ntask_pgrp is confusing, as the names can be mixed with each other when looking\nat the code for a long time.\n\nThe proposals are to\n* equip the functions that return the integer with _nr suffix to\n represent that fact,\n* and to make all functions work with task (not process) by making\n the common prefix of the same name.\n\nFor monotony the routines signal_session() and set_signal_session() are\nreplaced with task_session_nr() and set_task_session(), especially since they\nare only used with the explicit task-\u003esignal dereference.\n\nSigned-off-by: Pavel Emelianov \u003cxemul@openvz.org\u003e\nAcked-by: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.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": "8793d854edbc2774943a4b0de3304dc73991159a", "tree": "380b3403a0fedfcce61d9af5af1ffbcc71017abf", "parents": [ "81a6a5cdd2c5cd70874b88afe524ab09e9e869af" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Thu Oct 18 23:39:39 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:36 2007 -0700" }, "message": "Task Control Groups: make cpusets a client of cgroups\n\nRemove the filesystem support logic from the cpusets system and makes cpusets\na cgroup subsystem\n\nThe \"cpuset\" filesystem becomes a dummy filesystem; attempts to mount it get\npassed through to the cgroup filesystem with the appropriate options to\nemulate the old cpuset filesystem behaviour.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Srivatsa Vaddagiri \u003cvatsa@in.ibm.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.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": "817929ec274bcfe771586d338bb31d1659615686", "tree": "5a96ed1afd308016e8720437a00bf2f114e907cb", "parents": [ "a424316ca154317367c7ddf89997d1c80e4a8051" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Thu Oct 18 23:39:36 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:36 2007 -0700" }, "message": "Task Control Groups: shared cgroup subsystem group arrays\n\nReplace the struct css_set embedded in task_struct with a pointer; all tasks\nthat have the same set of memberships across all hierarchies will share a\ncss_set object, and will be linked via their css_sets field to the \"tasks\"\nlist_head in the css_set.\n\nAssuming that many tasks share the same cgroup assignments, this reduces\noverall space usage and keeps the size of the task_struct down (three pointers\nadded to task_struct compared to a non-cgroups kernel, no matter how many\nsubsystems are registered).\n\n[akpm@linux-foundation.org: fix a printk]\n[akpm@linux-foundation.org: build fix]\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Srivatsa Vaddagiri \u003cvatsa@in.ibm.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Srivatsa Vaddagiri \u003cvatsa@in.ibm.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ddbcc7e8e50aefe467c01cac3dec71f118cd8ac2", "tree": "0881a031e669582f819d572339e955b04abfc3d2", "parents": [ "55a230aae650157720becc09cadb7d10efbf5013" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Thu Oct 18 23:39:30 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Oct 19 11:53:36 2007 -0700" }, "message": "Task Control Groups: basic task cgroup framework\n\nGeneric Process Control Groups\n--------------------------\n\nThere have recently been various proposals floating around for\nresource management/accounting and other task grouping subsystems in\nthe kernel, including ResGroups, User BeanCounters, NSProxy\ncgroups, and others. These all need the basic abstraction of being\nable to group together multiple processes in an aggregate, in order to\ntrack/limit the resources permitted to those processes, or control\nother behaviour of the processes, and all implement this grouping in\ndifferent ways.\n\nThis patchset provides a framework for tracking and grouping processes\ninto arbitrary \"cgroups\" and assigning arbitrary state to those\ngroupings, in order to control the behaviour of the cgroup as an\naggregate.\n\nThe intention is that the various resource management and\nvirtualization/cgroup efforts can also become task cgroup\nclients, with the result that:\n\n- the userspace APIs are (somewhat) normalised\n\n- it\u0027s easier to test e.g. the ResGroups CPU controller in\n conjunction with the BeanCounters memory controller, or use either of\nthem as the resource-control portion of a virtual server system.\n\n- the additional kernel footprint of any of the competing resource\n management systems is substantially reduced, since it doesn\u0027t need\n to provide process grouping/containment, hence improving their\n chances of getting into the kernel\n\nThis patch:\n\nAdd the main task cgroups framework - the cgroup filesystem, and the\nbasic structures for tracking membership and associating subsystem state\nobjects to tasks.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Srivatsa Vaddagiri \u003cvatsa@in.ibm.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.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": "54e840dd5021ae03c5d2b4158b191bb67f584b75", "tree": "f5df7580707828ebdcafbbc6cb719ddaec5a5fdd", "parents": [ "32c15bb978c0e6ff65b3012a6af5a14c899005ce", "480b9434c542ddf2833aaed3dabba71bc0b787b5" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:54:03 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:54:03 2007 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:\n sched: reduce schedstat variable overhead a bit\n sched: add KERN_CONT annotation\n sched: cleanup, make struct rq comments more consistent\n sched: cleanup, fix spacing\n sched: fix return value of wait_for_completion_interruptible()\n" }, { "commit": "c66f08be7e3ad0a28bcd9a0aef766fdf08ea0ec6", "tree": "d147c0a43a66973014d924a6020388a249c509a7", "parents": [ "898eb71cb17644964c5895fb190e79e3d0c49679" ], "author": { "name": "Michael Neuling", "email": "mikey@neuling.org", "time": "Thu Oct 18 03:06:34 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:28 2007 -0700" }, "message": "Add scaled time to taskstats based process accounting\n\nThis adds items to the taststats struct to account for user and system\ntime based on scaling the CPU frequency and instruction issue rates.\n\nAdds account_(user|system)_time_scaled callbacks which architectures\ncan use to account for time using this mechanism.\n\nSigned-off-by: Michael Neuling \u003cmikey@neuling.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Jay Lan \u003cjlan@engr.sgi.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6212e3a388fdda3f19fa660ef5a30edf54d1dcfd", "tree": "7218bbf29af36ff0c36aa2af8323a5206ea44b1c", "parents": [ "9cd9a0058dd35268b24fa16795a92c800f4086d4" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Thu Oct 18 03:04:56 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:20 2007 -0700" }, "message": "Remove struct task_struct::io_wait\n\nHell knows what happened in commit 63b05203af57e7de4f3bb63b8b81d43bc196d32b\nduring 2.6.9 development. Commit introduced io_wait field which remained\nwrite-only than and still remains write-only.\n\nAlso garbage collect macros which \"use\" io_wait.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "480b9434c542ddf2833aaed3dabba71bc0b787b5", "tree": "78c2638ac583cc57165ee1393ebbbbbe367f46fb", "parents": [ "cc4ea79588e688ea9b1161650979a194dd709169" ], "author": { "name": "Ken Chen", "email": "kenchen@google.com", "time": "Thu Oct 18 21:32:56 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Oct 18 21:32:56 2007 +0200" }, "message": "sched: reduce schedstat variable overhead a bit\n\nschedstat is useful in investigating CPU scheduler behavior. Ideally,\nI think it is beneficial to have it on all the time. However, the\ncost of turning it on in production system is quite high, largely due\nto number of events it collects and also due to its large memory\nfootprint.\n\nMost of the fields probably don\u0027t need to be full 64-bit on 64-bit\narch. Rolling over 4 billion events will most like take a long time\nand user space tool can be made to accommodate that. I\u0027m proposing\nkernel to cut back most of variable width on 64-bit system. (note,\nthe following patch doesn\u0027t affect 32-bit system).\n\nSigned-off-by: Ken Chen \u003ckenchen@google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e6d5a11dad44b8ae18ca8fc4ecb72ccccfa0a2d2", "tree": "7e3837c8f28e2e969a7b7d040b00676c90bf72c7", "parents": [ "b6257a9036f06878a0f02354d5a07f155e1cfee0", "b9dca1e0fcb696716840a3bc8f20a6941b484dbf" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 09:11:18 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 09:11:18 2007 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:\n sched: fix new task startup crash\n sched: fix !SYSFS build breakage\n sched: fix improper load balance across sched domain\n sched: more robust sd-sysctl entry freeing\n" }, { "commit": "57c521ce6125e15e99e56c902cb8da96bee7b36d", "tree": "d6337e711db2d3baf6dcff89cf2d2bc1dd12a62f", "parents": [ "20510f2f4e2dabb0ff6c13901807627ec9452f98" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Oct 16 23:31:35 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:43:07 2007 -0700" }, "message": "ifdef struct task_struct::security\n\nFor those who don\u0027t care about CONFIG_SECURITY.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: \"Serge E. Hallyn\" \u003cserge@hallyn.com\u003e\nCc: Casey Schaufler \u003ccasey@schaufler-ca.com\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nCc: Stephen Smalley \u003csds@tycho.nsa.gov\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "18796aa00243a594a2bd6733f1360aa38c3cd8f4", "tree": "2a7ae5f90d87e4bd98f5de11bfe0ec4caed16e31", "parents": [ "f7a75f0a40073601a0fb509290019d5f3f32b94b" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@sw.ru", "time": "Tue Oct 16 23:30:26 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:43:01 2007 -0700" }, "message": "task_struct: move -\u003efpu_counter and -\u003eoomkilladj\n\nThere is nice 2 byte hole after struct task_struct::ioprio field\ninto which we can put two 1-byte fields: -\u003efpu_counter and -\u003eoomkilladj.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@sw.ru\u003e\nAcked-by: Arjan van de Ven \u003carjan@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "970a8645ca051225a32401e4c80b50fc0a49c081", "tree": "25600770b729500354d025f078d0ce9f655bdea4", "parents": [ "40aeb400f68090f92010920ddf284b672a1461b8" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@sw.ru", "time": "Tue Oct 16 23:30:09 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:59 2007 -0700" }, "message": "user.c: #ifdef -\u003emq_bytes\n\nFor those who deselect POSIX message queues.\n\nReduces SLAB size of user_struct from 64 to 32 bytes here, SLUB size -- from\n40 bytes to 32 bytes.\n\n[akpm@linux-foundation.org: fix build]\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@sw.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "42b2dd0a02c512cf59c96f5c227bf54bfe5bbf08", "tree": "f9e4a572804897772d97e2db1ab0d2adcd28840c", "parents": [ "bcbba6c10ef6b14b0542d7ed7380e95168175818" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@sw.ru", "time": "Tue Oct 16 23:27:30 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:55 2007 -0700" }, "message": "Shrink task_struct if CONFIG_FUTEX\u003dn\n\nrobust_list, compat_robust_list, pi_state_list, pi_state_cache are\nreally used if futexes are on.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@sw.ru\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3befe7ceb8d39a56a9ea55dd2da8b4bd9ddcdd36", "tree": "f22b82dec859f5a6faeaf6508b9595c4753f955b", "parents": [ "68a9bd0cd5824073e3232b102011ec568a517646" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Oct 16 23:27:14 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:53 2007 -0700" }, "message": "Shrink struct task_struct::oomkilladj\n\noomkilladj is int, but values which can be assigned to it are -17, [-16,\n15], thus fitting into s8.\n\nWhile patch itself doesn\u0027t help in making task_struct smaller, because of\nnatural alignment of -\u003elink_count, it will make picture clearer wrt futher\ntask_struct reduction patches. My plan is to move -\u003efpu_counter and\n-\u003eoomkilladj after -\u003eioprio filling hole on i386 and x86_64. But that\u0027s\nfor later, because bloated distro configs need looking at as well.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "82df39738ba9e02c057fa99b7461a56117d36119", "tree": "ef4d37689eb31c59e03cc066cb1210a9ddb9f744", "parents": [ "e629a7ddc0188e1bb9e956e698a9bd00c19c9854" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Tue Oct 16 23:27:02 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:52 2007 -0700" }, "message": "Add MMF_DUMP_ELF_HEADERS\n\nThis adds the MMF_DUMP_ELF_HEADERS option to /proc/pid/coredump_filter.\nThis dumps the first page (only) of a private file mapping if it appears to\nbe a mapping of an ELF file. Including these pages in the core dump may\ngive sufficient identifying information to associate the original DSO and\nexecutable file images and their debugging information with a core file in\na generic way just from its contents (e.g. when those binaries were built\nwith ld --build-id). I expect this to become the default behavior\neventually. Existing versions of gdb can be confused by the core dumps it\ncreates, so it won\u0027t enabled by default for some time to come. Soon many\npeople will have systems with a gdb that handle these dumps, so they can\narrange to set the bit at boot and have it inherited system-wide.\n\nThis also cleans up the checking of the MMF_DUMP_* flag bits, which did not\nneed to be using atomic macros.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Hidehiro Kawai \u003chidehiro.kawai.ez@hitachi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c4f3b63fe15b4629aa1ec163c95ab30423d0f76a", "tree": "432723f1c7ac2fcff0aa57377c31187140d69145", "parents": [ "a5f2ce3c6024a5bb895647b6bd88ecae5001020a" ], "author": { "name": "Ravikiran G Thirumalai", "email": "kiran@scalex86.org", "time": "Tue Oct 16 23:26:09 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:47 2007 -0700" }, "message": "softlockup: add a /proc tuning parameter\n\nControl the trigger limit for softlockup warnings. This is useful for\ndebugging softlockups, by lowering the softlockup_thresh to identify\npossible softlockups earlier.\n\nThis patch:\n1. Adds a sysctl softlockup_thresh with valid values of 1-60s\n (Higher value to disable false positives)\n2. Changes the softlockup printk to print the cpu softlockup time\n\n[akpm@linux-foundation.org: Fix various warnings and add definition of \"two\"]\nSigned-off-by: Ravikiran Thirumalai \u003ckiran@scalex86.org\u003e\nSigned-off-by: Shai Fultheim \u003cshai@scalex86.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3e26c149c358529b1605f8959341d34bc4b880a3", "tree": "9d173b1753b86bcf03a8591e2509e3162234447c", "parents": [ "04fbfdc14e5f48463820d6b9807daa5e9c92c51f" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 16 23:25:50 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:45 2007 -0700" }, "message": "mm: dirty balancing for tasks\n\nBased on ideas of Andrew:\n http://marc.info/?l\u003dlinux-kernel\u0026m\u003d102912915020543\u0026w\u003d2\n\nScale the bdi dirty limit inversly with the tasks dirty rate.\nThis makes heavy writers have a lower dirty limit than the occasional writer.\n\nAndrea proposed something similar:\n http://lwn.net/Articles/152277/\n\nThe main disadvantage to his patch is that he uses an unrelated quantity to\nmeasure time, which leaves him with a workload dependant tunable. Other than\nthat the two approaches appear quite similar.\n\n[akpm@linux-foundation.org: fix warning]\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b1a8c172c318534b96d0f0f1aecdad3898118b98", "tree": "f42b724f02be6f4959e2edcb29687fd5bc54ca69", "parents": [ "908a7c1b9b80d06708177432020c80d147754691" ], "author": { "name": "Dhaval Giani", "email": "dhaval@linux.vnet.ibm.com", "time": "Wed Oct 17 16:55:11 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 17 16:55:11 2007 +0200" }, "message": "sched: fix !SYSFS build breakage\n\nWhen CONFIG_SYSFS is not set, CONFIG_FAIR_USER_SCHED fails to build\nwith\n\nkernel/built-in.o: In function `uids_kobject_init\u0027:\n(.init.text+0x1488): undefined reference to `kernel_subsys\u0027\nkernel/built-in.o: In function `uids_kobject_init\u0027:\n(.init.text+0x1490): undefined reference to `kernel_subsys\u0027\nkernel/built-in.o: In function `uids_kobject_init\u0027:\n(.init.text+0x1480): undefined reference to `kernel_subsys\u0027\nkernel/built-in.o: In function `uids_kobject_init\u0027:\n(.init.text+0x1494): undefined reference to `kernel_subsys\u0027\n\nThis patch fixes this build error.\n\nSigned-off-by: Srivatsa Vaddagiri \u003cvatsa@linux.vnet.ibm.com\u003e\nSigned-off-by: Dhaval Giani \u003cdhaval@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "607717a65d92858fd925bec05baae4d142719f27", "tree": "b7faea733fe3426881e63bc7549db9c97c8bdf59", "parents": [ "2ed6dc34f9ed39bb8e4c81ea1056f0ba56315841" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Tue Oct 16 01:27:43 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:43:09 2007 -0700" }, "message": "cpuset: remove sched domain hooks from cpusets\n\nRemove the cpuset hooks that defined sched domains depending on the setting\nof the \u0027cpu_exclusive\u0027 flag.\n\nThe cpu_exclusive flag can only be set on a child if it is set on the\nparent.\n\nThis made that flag painfully unsuitable for use as a flag defining a\npartitioning of a system.\n\nIt was entirely unobvious to a cpuset user what partitioning of sched\ndomains they would be causing when they set that one cpu_exclusive bit on\none cpuset, because it depended on what CPUs were in the remainder of that\ncpusets siblings and child cpusets, after subtracting out other\ncpu_exclusive cpusets.\n\nFurthermore, there was no way on production systems to query the\nresult.\n\nUsing the cpu_exclusive flag for this was simply wrong from the get go.\n\nFortunately, it was sufficiently borked that so far as I know, almost no\nsuccessful use has been made of this. One real time group did use it to\naffectively isolate CPUs from any load balancing efforts. They are willing\nto adapt to alternative mechanisms for this, such as someway to manipulate\nthe list of isolated CPUs on a running system. They can do without this\npresent cpu_exclusive based mechanism while we develop an alternative.\n\nThere is a real risk, to the best of my understanding, of users\naccidentally setting up a partitioned scheduler domains, inhibiting desired\nload balancing across all their CPUs, due to the nonobvious (from the\ncpuset perspective) side affects of the cpu_exclusive flag.\n\nFurthermore, since there was no way on a running system to see what one was\ndoing with sched domains, this change will be invisible to any using code.\nUnless they have real insight to the scheduler load balancing choices, they\nwill be unable to detect that this change has been made in the kernel\u0027s\nbehaviour.\n\nInitial discussion on lkml of this patch has generated much comment. My\n(probably controversial) take on that discussion is that it has reached a\nrough concensus that the current cpuset cpu_exclusive mechanism for\ndefining sched domains is borked. There is no concensus on the\nreplacement. But since we can remove this mechanism, and since its\ncontinued presence risks causing unwanted partitioning of the schedulers\nload balancing, we should remove it while we can, as we proceed to work the\nreplacement scheduler domain mechanisms.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Christoph Lameter \u003cclameter@engr.sgi.com\u003e\nCc: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c92ff1bde06f69d59b40f3194016aee51cc5da55", "tree": "d365a7723a05a073ed715c6f4e99363e27516d04", "parents": [ "c0bc9875b701c588e448302d41181995c21e8040" ], "author": { "name": "Martin Schwidefsky", "email": "schwidefsky@de.ibm.com", "time": "Tue Oct 16 01:24:43 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:42:53 2007 -0700" }, "message": "move mm_struct and vm_area_struct\n\nMove the definitions of struct mm_struct and struct vma_area_struct to\ninclude/mm_types.h. This allows to define more function in asm/pgtable.h\nand friends with inline assemblies instead of macros. Compile tested on\ni386, powerpc, powerpc64, s390-32, s390-64 and x86_64.\n\n[aurelien@aurel32.net: build fix]\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nSigned-off-by: Aurelien Jarno \u003caurelien@aurel32.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "94886b84b1bcdc95f34f70e7fce407efefe472e1", "tree": "fe612688c702061cf04441350f9200a08f1dc28d", "parents": [ "9ac52315d4cf5f561f36dabaf0720c00d3553162" ], "author": { "name": "Laurent Vivier", "email": "Laurent.Vivier@bull.net", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "message": "sched: guest CPU accounting: maintain stats in account_system_time()\n\nmodify account_system_time() to add cputime to cpustat-\u003eguest if we are\nrunning a VCPU. We add this cputime to cpustat-\u003euser instead of\ncpustat-\u003esystem because this part of KVM code is in fact user code\nalthough it is executed in the kernel. We duplicate VCPU time between\nguest and user to allow an unmodified \"top(1)\" to display correct value.\nA modified \"top(1)\" is able to display good cpu user time and cpu guest\ntime by subtracting cpu guest time from cpu user time. Update \"gtime\" in\ntask_struct accordingly.\n\nSigned-off-by: Laurent Vivier \u003cLaurent.Vivier@bull.net\u003e\nAcked-by: Avi Kivity \u003cavi@qumranet.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9ac52315d4cf5f561f36dabaf0720c00d3553162", "tree": "afe7284f34a65d2540fcb2a9b764834f9d790fa7", "parents": [ "5e84cfde51cf303d368fcb48f22059f37b3872de" ], "author": { "name": "Laurent Vivier", "email": "Laurent.Vivier@bull.net", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "message": "sched: guest CPU accounting: add guest-CPU /proc/\u003cpid\u003e/stat fields\n\nlike for cpustat, introduce the \"gtime\" (guest time of the task) and\n\"cgtime\" (guest time of the task children) fields for the\ntasks. Modify signal_struct and task_struct.\n\nModify /proc/\u003cpid\u003e/stat to display these new fields.\n\nSigned-off-by: Laurent Vivier \u003cLaurent.Vivier@bull.net\u003e\nAcked-by: Avi Kivity \u003cavi@qumranet.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cc367732ff0b1c63d0d7bdd11e6d1661794ef6a3", "tree": "27c65e05bf19644224937624ca356c876e6d1318", "parents": [ "2d92f22784b7b8879ebe3254e44c92cb8792b0dd" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "message": "sched: debug, improve migration statistics\n\nadd new migration statistics when SCHED_DEBUG and SCHEDSTATS\nis enabled. Available in /proc/\u003cPID\u003e/sched.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "da84d96176729fb48a8458561e5d8647103168b8", "tree": "24c952d956178faa9ac8b5c505513c93a87f4f6b", "parents": [ "e5f32a3856caabe745381279f7f32e3b581b59dc" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "message": "sched: reintroduce cache-hot affinity\n\nreintroduce a simplified version of cache-hot/cold scheduling\naffinity. This improves performance with certain SMP workloads,\nsuch as sysbench.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "95938a35c5562afa7af7252821e44132391a3db8", "tree": "548cda134d007105f3a819a438ab384ab9f04e27", "parents": [ "ce6c131131df442f0d49d064129ecc52d9fe8ca9" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Mon Oct 15 17:00:14 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:14 2007 +0200" }, "message": "sched: prevent wakeup over-scheduling\n\nPrevent wakeup over-scheduling. Once a task has been preempted by a\ntask of the same or lower priority, it becomes ineligible for repeated\npreemption by same until it has been ticked, or slept. Instead, the\ntask is marked for preemption at the next tick. Tasks of higher\npriority still preempt immediately.\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5cb350baf580017da38199625b7365b1763d7180", "tree": "3830339798b1c6f19f1580700ea6ba240fb56ef2", "parents": [ "8ca0e14ffb12c257de591571a9e96102acdb1c64" ], "author": { "name": "Dhaval Giani", "email": "dhaval@linux.vnet.ibm.com", "time": "Mon Oct 15 17:00:14 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:14 2007 +0200" }, "message": "sched: group scheduling, sysfs tunables\n\nAdd tunables in sysfs to modify a user\u0027s cpu share.\n\nA directory is created in sysfs for each new user in the system.\n\n\t/sys/kernel/uids/\u003cuid\u003e/cpu_share\n\nReading this file returns the cpu shares granted for the user.\nWriting into this file modifies the cpu share for the user. Only an\nadministrator is allowed to modify a user\u0027s cpu share.\n\nEx:\n\t# cd /sys/kernel/uids/\n\t# cat 512/cpu_share\n\t1024\n\t# echo 2048 \u003e 512/cpu_share\n\t# cat 512/cpu_share\n\t2048\n\t#\n\nSigned-off-by: Srivatsa Vaddagiri \u003cvatsa@linux.vnet.ibm.com\u003e\nSigned-off-by: Dhaval Giani \u003cdhaval@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4cf86d77f5942336e7cd9de874b38b3c83b54d5e", "tree": "a62b0a1b5a71f715257b82c0f65f894153757c84", "parents": [ "06877c33fe9261ccdf143492c28de93c56493079" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:14 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:14 2007 +0200" }, "message": "sched: cleanup: rename task_grp to task_group\n\ncleanup: rename task_grp to task_group. No need to save two characters\nand \u0027grp\u0027 is annoying to read.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "af92723262f3e0c431083f668b605a1dcdbe8f3d", "tree": "872eb5c473fabdbe0b67b309805e3f705c759d93", "parents": [ "a2a2d680735ad7c3b5250704b3863abf54ff4020" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Mon Oct 15 17:00:13 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:13 2007 +0200" }, "message": "sched: cleanup, remove the TASK_NONINTERACTIVE flag\n\nHere\u0027s another piece of low hanging obsolete fruit.\n\nRemove obsolete TASK_NONINTERACTIVE.\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5522d5d5f70005faeffff3ffc0cfa8eec0155de4", "tree": "d05fc41d19b8a70102a0ad3ad7ed8f6fd2d1cf7d", "parents": [ "b9fa3df33f9166daf81bfa8253d339f5a7726122" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:12 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:12 2007 +0200" }, "message": "sched: mark scheduling classes as const\n\nmark scheduling classes as const. The speeds up the code\na bit and shrinks it:\n\n text data bss dec hex filename\n 40027 4018 292 44337 ad31 sched.o.before\n 40190 3842 292 44324 ad24 sched.o.after\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nReviewed-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" } ], "next": "5f6d858ecca78f71755859a346d845e302973cd1" }