)]}' { "log": [ { "commit": "8b604d520799a995946437d041f46bae7d5bcc8c", "tree": "3ebcbafd5f592f417b78a44ee6587e1c1691d6e0", "parents": [ "ce0d1b6f73870878aae622b72e85fe8f7a16b51c" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jun 27 11:52:45 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jun 27 11:52:45 2008 +0200" }, "message": "fix: \"smp_call_function: get rid of the unused nonatomic/retry argument\"\n\ndrivers/char/sysrq.c: In function \u0027sysrq_showregs_othercpus\u0027:\ndrivers/char/sysrq.c:218: error: too many arguments to function \u0027smp_call_function\u0027\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "93dae5b70e7c1c8e927d22e1c20a941ca376906a", "tree": "f255087706b9d176455b17e4384f4632f59f4cde", "parents": [ "88278ca27a43ae503572b52ea2c171fbf45db5a2" ], "author": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Mon May 19 23:46:00 2008 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Tue May 20 00:33:45 2008 -0700" }, "message": "sparc64: Add global register dumping facility.\n\nWhen a cpu really is stuck in the kernel, it can be often\nimpossible to figure out which cpu is stuck where. The\nworst case is when the stuck cpu has interrupts disabled.\n\nTherefore, implement a global cpu state capture that uses\nSMP message interrupts which are not disabled by the\nnormal IRQ enable/disable APIs of the kernel.\n\nAs long as we can get a sysrq \u0027y\u0027 to the kernel, we can\nget a dump. Even if the console interrupt cpu is wedged,\nwe can trigger it from userspace using /proc/sysrq-trigger\n\nThe output is made compact so that this facility is more\nuseful on high cpu count systems, which is where this\nfacility will likely find itself the most useful :)\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "5045bcae0fb466a1dbb6af0036e56901fd7aafb7", "tree": "3ad84c429ff74ec0f541cc7cf05ab3788114022f", "parents": [ "6e574195b75543bc6a6240306313988b1952470c" ], "author": { "name": "Rik van Riel", "email": "riel@redhat.com", "time": "Tue Apr 29 00:59:21 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 29 08:06:03 2008 -0700" }, "message": "sysrq: add show-backtrace-on-all-cpus function\n\nSysRQ-P is not always useful on SMP systems, since it usually ends up showing\nthe backtrace of a CPU that is doing just fine, instead of the backtrace of\nthe CPU that is having problems.\n\nThis patch adds SysRQ show-all-cpus(L), which shows the backtrace of every\nactive CPU in the system. It skips idle CPUs because some SMP systems are\njust too large and we already know what the backtrace of the idle task looks\nlike.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Rik van Riel \u003criel@redhat.com\u003e\nRandy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: \u003clwoodman@redhat.com\u003e\nCc: 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": "0e88460da6ab7bb6a7ef83675412ed5b6315d741", "tree": "1feb4de2362e4998a0deeab66af1efb9c7b8bb34", "parents": [ "dac1d27bc8d5ca636d3014ecfdf94407031d1970" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Mon Apr 28 02:12:14 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Apr 28 08:58:18 2008 -0700" }, "message": "mm: introduce node_zonelist() for accessing the zonelist for a GFP mask\n\nIntroduce a node_zonelist() helper function. It is used to lookup the\nappropriate zonelist given a node and a GFP mask. The patch on its own is a\ncleanup but it helps clarify parts of the two-zonelist-per-node patchset. If\nnecessary, it can be merged with the next patch in this set without problems.\n\nReviewed-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nSigned-off-by: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\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": "2e8ecb9db0bcc19e1cc8bb51e9252fe6a86a9863", "tree": "c3d77e23a5aad820968601516392f8f440691f7a", "parents": [ "430d275a399175c7c0673459738979287ec1fd22" ], "author": { "name": "Bill Nottingham", "email": "notting@redhat.com", "time": "Tue Oct 16 23:29:38 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:56 2007 -0700" }, "message": "add CONFIG_VT_UNICODE\n\nAs of now, the kernel defaults to non-unicode and XLATE for the keyboard.\nWe\u0027ve been changing this in Fedora, but that requires patching the defaults\nin the kernel.\n\nThe attached introduces CONFIG_VT_UNICODE, which sets the console in\nunicode mode by default on boot, including both the virtual terminal and\nthe keyboard driver.\n\nSigned-off-by: Bill Nottingham \u003cnotting@redhat.com\u003e\nCc: Samuel Thibault \u003csamuel.thibault@ens-lyon.org\u003e\nCc: Dmitry Torokhov \u003cdtor@mail.ru\u003e\nCc: Jiri Kosina \u003cjkosina@suse.cz\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5a3135c2e77fe88cdea20b5e3f4761068b799ac2", "tree": "d82b0568722d285673251210716801e6fc4a90ed", "parents": [ "4ba9b9d0ba0a49d91fa6417c7510ee36f48cf957" ], "author": { "name": "David Rientjes", "email": "rientjes@google.com", "time": "Tue Oct 16 23:25:53 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:45 2007 -0700" }, "message": "oom: move prototypes to appropriate header file\n\nMove the OOM killer\u0027s extern function prototypes to include/linux/oom.h and\ninclude it where necessary.\n\n[clg@fr.ibm.com: build fix]\nCc: Andrea Arcangeli \u003candrea@suse.de\u003e\nAcked-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: 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": "e63340ae6b6205fef26b40a75673d1c9c0c8bb90", "tree": "8d3212705515edec73c3936bb9e23c71d34a7b41", "parents": [ "04c9167f91e309c9c4ea982992aa08e83b2eb42e" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Tue May 08 00:28:08 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue May 08 11:15:07 2007 -0700" }, "message": "header cleaning: don\u0027t include smp_lock.h when not used\n\nRemove includes of \u003clinux/smp_lock.h\u003e where it is not used/needed.\nSuggested by Al Viro.\n\nBuilds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,\nsparc64, and arm (all 59 defconfigs).\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "88ad0bf6890505cbd9ca1dbb79944a27b5c8697d", "tree": "e78711c47de9da92c8e4db8029f43542cecdf268", "parents": [ "289f480af87e45f7a6de6ba9b4c061c2e259fe98" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Feb 16 01:28:16 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 16 08:13:59 2007 -0800" }, "message": "[PATCH] Add SysRq-Q to print timer_list debug info\n\nAdd SysRq-Q to print pending timers and other timer info.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nCc: Roman Zippel \u003czippel@linux-m68k.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7f1f86a0d04e79f8165e6f50d329a520b8cd11e5", "tree": "b65a460c04a2086baf5c7970c4c4808a93f0c3bf", "parents": [ "552ce544edfbe9bce79952a8c0f8d65b7f2d16bb" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Feb 13 14:38:58 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 13 16:07:36 2007 -0800" }, "message": "[PATCH] Fix SAK_work workqueue initialization.\n\nSomewhere in the rewrite of the work queues my cleanup of SAK handling\ngot broken. Maybe I didn\u0027t retest it properly or possibly the API\nwas changing so fast I missed something. Regardless currently\ntriggering a SAK now generates an ugly BUG_ON and kills the kernel.\n\nThanks to Alexey Dobriyan \u003cadobriyan@openvz.org\u003e for spotting this.\n\nThis modifies the use of SAK_work to initialize it when the data\nstructure it resides in is initialized, and to simply call\nschedule_work when we need to generate a SAK. I update both\ndata structures that have a SAK_work member for consistency.\n\nAll of the old PREPARE_WORK calls that are now gone.\n\nIf we call schedule_work again before it has processed it\nhas generated the first SAK it will simply ignore the duplicate\nschedule_work request.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8b6312f4dcc1efe7975731b6c47dd134282bd9ac", "tree": "71c94b01bda940c5610d448d0f4a2aa3c7665b4c", "parents": [ "0a7b35cb18c52d651f6ed9cd59edc979200ab880" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Sat Feb 10 01:44:34 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Feb 11 10:51:24 2007 -0800" }, "message": "[PATCH] vt: refactor console SAK processing\n\nThis does several things.\n- It moves looking up of the current foreground console into process\n context where we can safely take the semaphore that protects this\n operation.\n- It uses the new flavor of work queue processing.\n- This generates a factor of do_SAK, __do_SAK that runs immediately.\n- This calls __do_SAK with the console semaphore held ensuring nothing\n else happens to the console while we process the SAK operation.\n- With the console SAK processing moved into process context this\n patch removes the xchg operations that I used to attempt to attomically\n update struct pid, because of the strange locking used in the SAK processing.\n With SAK using the normal console semaphore nothing special is needed.\n\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: 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": "d346cce308f7fc99c7ffdb62060ed404fa340a1c", "tree": "e6d4f82ad87c3ee34ed91f79acb5f9c24a3f1e4b", "parents": [ "7d8952440f4090522b740257f1c6b2cf96413969" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Wed Jan 31 23:48:17 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Feb 01 16:22:42 2007 -0800" }, "message": "[PATCH] sysrq: showBlockedTasks is sysrq-W\n\nChange SysRq showBlockedTasks from sysrq-X to sysrq-W and show that in the\nHelp message.\n\nIt was previously done via X, but X is already used for Xmon on ppc \u0026 powerpc\nplatforms and this collision needs to be avoided.\n\nAll callers of register_sysrq_key() are now marked in the sysrq op/key table.\nI didn\u0027t mark \u0027h\u0027 as Help because Help is just printed for any unknown key,\nsuch as \u0027?\u0027.\n\nAdded some omitted sysrq key entries in the sysrq.txt file.\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5d6f647fc6bb57377c9f417c4752e43189f56bb1", "tree": "ab30c24c021adc549aab6bf042108d920975d9a9", "parents": [ "e61c90188b9956edae1105eef361d8981a352fcd" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 13 00:34:36 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Wed Dec 13 09:05:50 2006 -0800" }, "message": "[PATCH] debug: add sysrq_always_enabled boot option\n\nMost distributions enable sysrq support but set it to 0 by default. Add a\nsysrq_always_enabled boot option to always-enable sysrq keys. Useful for\ndebugging - without having to modify the disribution\u0027s config files (which\nmight not be possible if the kernel is on a live CD, etc.).\n\nAlso, while at it, clean up the sysrq interfaces.\n\n[bunk@stusta.de: make sysrq_always_enabled_setup() static]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e59e2ae2c29700117a54e85c106017c24837119f", "tree": "d746e90d2d79fa8458d021d3572bc55ebdc3aca3", "parents": [ "875d95ec9eb69ffb334116fb44d04d9a64dcbfbb" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 06 20:35:59 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:32 2006 -0800" }, "message": "[PATCH] SysRq-X: show blocked tasks\n\nAdd SysRq-X support: show blocked (TASK_UNINTERRUPTIBLE) tasks only.\n\nUseful for debugging IO stalls.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "65f27f38446e1976cc98fd3004b110fedcddd189", "tree": "68f8be93feae31dfa018c22db392a05546b63ee1", "parents": [ "365970a1ea76d81cb1ad2f652acb605f06dae256" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Nov 22 14:55:48 2006 +0000" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Nov 22 14:55:48 2006 +0000" }, "message": "WorkStruct: Pass the work_struct pointer instead of context data\n\nPass the work_struct pointer to the work function rather than context data.\nThe work function can use container_of() to work out the data.\n\nFor the cases where the container of the work_struct may go away the moment the\npending bit is cleared, it is made possible to defer the release of the\nstructure by deferring the clearing of the pending bit.\n\nTo make this work, an extra flag is introduced into the management side of the\nwork_struct. This governs auto-release of the structure upon execution.\n\nOrdinarily, the work queue executor would release the work_struct for further\nscheduling or deallocation by clearing the pending bit prior to jumping to the\nwork function. This means that, unless the driver makes some guarantee itself\nthat the work_struct won\u0027t go away, the work function may not access anything\nelse in the work_struct or its container lest they be deallocated.. This is a\nproblem if the auxiliary data is taken away (as done by the last patch).\n\nHowever, if the pending bit is *not* cleared before jumping to the work\nfunction, then the work function *may* access the work_struct and its container\nwith no problems. But then the work function must itself release the\nwork_struct by calling work_release().\n\nIn most cases, automatic release is fine, so this is the default. Special\ninitiators exist for the non-auto-release case (ending in _NAR).\n\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\n" }, { "commit": "2033b0c330d50d3f1cccd207147a10ad7f4f47f8", "tree": "1697ff00b8d9bc03421521c6335e11c5620afcaa", "parents": [ "5a489b9846f688db7e69aa7ccb23c53459a9c20e" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Fri Oct 06 16:38:42 2006 +0200" }, "committer": { "name": "Martin Schwidefsky", "email": "schwidefsky@de.ibm.com", "time": "Fri Oct 06 16:38:42 2006 +0200" }, "message": "[PATCH] sysrq: irq change build fix.\n\ndrivers/char/sysrq.c: In function `sysrq_handle_crashdump\u0027:\ndrivers/char/sysrq.c:98: warning: implicit declaration of function `get_irq_regs\u0027\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\n" }, { "commit": "7d12e780e003f93433d49ce78cfedf4b4c52adc5", "tree": "6748550400445c11a306b132009f3001e3525df8", "parents": [ "da482792a6d1a3fbaaa25fae867b343fb4db3246" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Thu Oct 05 14:55:46 2006 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@warthog.cambridge.redhat.com", "time": "Thu Oct 05 15:10:12 2006 +0100" }, "message": "IRQ: Maintain regs pointer globally rather than passing to IRQ handlers\n\nMaintain a per-CPU global \"struct pt_regs *\" variable which can be used instead\nof passing regs around manually through all ~1800 interrupt handlers in the\nLinux kernel.\n\nThe regs pointer is used in few places, but it potentially costs both stack\nspace and code to pass it around. On the FRV arch, removing the regs parameter\nfrom all the genirq function results in a 20% speed up of the IRQ exit path\n(ie: from leaving timer_interrupt() to leaving do_IRQ()).\n\nWhere appropriate, an arch may override the generic storage facility and do\nsomething different with the variable. On FRV, for instance, the address is\nmaintained in GR28 at all times inside the kernel as part of general exception\nhandling.\n\nHaving looked over the code, it appears that the parameter may be handed down\nthrough up to twenty or so layers of functions. Consider a USB character\ndevice attached to a USB hub, attached to a USB controller that posts its\ninterrupts through a cascaded auxiliary interrupt controller. A character\ndevice driver may want to pass regs to the sysrq handler through the input\nlayer which adds another few layers of parameter passing.\n\nI\u0027ve build this code with allyesconfig for x86_64 and i386. I\u0027ve runtested the\nmain part of the code on FRV and i386, though I can\u0027t test most of the drivers.\nI\u0027ve also done partial conversion for powerpc and MIPS - these at least compile\nwith minimal configurations.\n\nThis will affect all archs. Mostly the changes should be relatively easy.\nTake do_IRQ(), store the regs pointer at the beginning, saving the old one:\n\n\tstruct pt_regs *old_regs \u003d set_irq_regs(regs);\n\nAnd put the old one back at the end:\n\n\tset_irq_regs(old_regs);\n\nDon\u0027t pass regs through to generic_handle_irq() or __do_IRQ().\n\nIn timer_interrupt(), this sort of change will be necessary:\n\n\t-\tupdate_process_times(user_mode(regs));\n\t-\tprofile_tick(CPU_PROFILING, regs);\n\t+\tupdate_process_times(user_mode(get_irq_regs()));\n\t+\tprofile_tick(CPU_PROFILING);\n\nI\u0027d like to move update_process_times()\u0027s use of get_irq_regs() into itself,\nexcept that i386, alone of the archs, uses something other than user_mode().\n\nSome notes on the interrupt handling in the drivers:\n\n (*) input_dev() is now gone entirely. The regs pointer is no longer stored in\n the input_dev struct.\n\n (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does\n something different depending on whether it\u0027s been supplied with a regs\n pointer or not.\n\n (*) Various IRQ handler function pointers have been moved to type\n irq_handler_t.\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\n(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)\n" }, { "commit": "b2e9c7d07fcc8966d6aa50a77afa66c9919bd5a8", "tree": "55ef4fd8db585802ac2f0185d5da36ab041b05b5", "parents": [ "74ae3221818eaf3884ceac931ba3cd2c00045483" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Sat Sep 30 23:28:02 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 01 00:39:24 2006 -0700" }, "message": "[PATCH] sysrq: disable lockdep on reboot\n\nSysRq : Emergency Sync\nEmergency Sync complete\nSysRq : Emergency Remount R/O\nEmergency Remount complete\nSysRq : Resetting\nBUG: warning at kernel/lockdep.c:1816/trace_hardirqs_on() (Not tainted)\n\nCall Trace:\n [\u003cffffffff8026d56d\u003e] show_trace+0xae/0x319\n [\u003cffffffff8026d7ed\u003e] dump_stack+0x15/0x17\n [\u003cffffffff802a68d1\u003e] trace_hardirqs_on+0xbc/0x13d\n [\u003cffffffff803a8eec\u003e] sysrq_handle_reboot+0x9/0x11\n [\u003cffffffff803a8f8d\u003e] __handle_sysrq+0x99/0x130\n [\u003cffffffff803a903b\u003e] handle_sysrq+0x17/0x19\n [\u003cffffffff803a36ee\u003e] kbd_event+0x32e/0x57d\n [\u003cffffffff80401e35\u003e] input_event+0x42d/0x45b\n [\u003cffffffff804063eb\u003e] atkbd_interrupt+0x44d/0x53d\n [\u003cffffffff803fe5c5\u003e] serio_interrupt+0x49/0x86\n [\u003cffffffff803ff2a4\u003e] i8042_interrupt+0x202/0x21a\n [\u003cffffffff80210cf0\u003e] handle_IRQ_event+0x2c/0x64\n [\u003cffffffff802bfd8b\u003e] __do_IRQ+0xaf/0x114\n [\u003cffffffff8026ea24\u003e] do_IRQ+0xf8/0x107\n [\u003cffffffff8025f886\u003e] ret_from_intr+0x0/0xf\nDWARF2 unwinder stuck at ret_from_intr+0x0/0xf\nLeftover inexact backtrace:\n \u003cIRQ\u003e \u003cEOI\u003e [\u003cffffffff80258e36\u003e] mwait_idle+0x3f/0x54\n [\u003cffffffff8024a33a\u003e] cpu_idle+0xa2/0xc5\n [\u003cffffffff8026c34e\u003e] rest_init+0x2b/0x2d\n [\u003cffffffff809708bc\u003e] start_kernel+0x24a/0x24c\n [\u003cffffffff8097028b\u003e] _sinittext+0x28b/0x292\n\nSince we\u0027re shutting down anyway, don\u0027t bother being smart,\njust turn the thing off.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f400e198b2ed26ce55b22a1412ded0896e7516ac", "tree": "a3d78bfc1c20635e199fe0fe85aaa1d8792acc58", "parents": [ "959ed340f4867fda7684340625f60e211c2296d6" ], "author": { "name": "Sukadev Bhattiprolu", "email": "sukadev@us.ibm.com", "time": "Fri Sep 29 02:00:07 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 29 09:18:12 2006 -0700" }, "message": "[PATCH] pidspace: is_init()\n\nThis is an updated version of Eric Biederman\u0027s is_init() patch.\n(http://lkml.org/lkml/2006/2/6/280). It applies cleanly to 2.6.18-rc3 and\nreplaces a few more instances of -\u003epid \u003d\u003d 1 with is_init().\n\nFurther, is_init() checks pid and thus removes dependency on Eric\u0027s other\npatches for now.\n\nEric\u0027s original description:\n\n\tThere are a lot of places in the kernel where we test for init\n\tbecause we give it special properties. Most significantly init\n\tmust not die. This results in code all over the kernel test\n\t-\u003epid \u003d\u003d 1.\n\n\tIntroduce is_init to capture this case.\n\n\tWith multiple pid spaces for all of the cases affected we are\n\tlooking for only the first process on the system, not some other\n\tprocess that has pid \u003d\u003d 1.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: \u003clxc-devel@lists.sourceforge.net\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8c64580d522542e50f2ba689316128b7fbae497b", "tree": "f3379b93197d0b4ac5509ec36d3ba4227ec18340", "parents": [ "4d9f34ad366a7935be3d6e7cca90805e6b7a692d" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 03 00:24:56 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jul 03 15:27:04 2006 -0700" }, "message": "[PATCH] lockdep: print all lock classes on SysRQ-D\n\nPrint all lock-classes on SysRq-D.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9a11b49a805665e13a56aa067afaf81d43ec1514", "tree": "bf499956e3f67d1211d68ab1e2eb76645f453dfb", "parents": [ "fb7e42413a098cc45b3adf858da290033af62bae" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 03 00:24:33 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jul 03 15:27:01 2006 -0700" }, "message": "[PATCH] lockdep: better lock debugging\n\nGeneric lock debugging:\n\n - generalized lock debugging framework. For example, a bug in one lock\n subsystem turns off debugging in all lock subsystems.\n\n - got rid of the caller address passing (__IP__/__IP_DECL__/etc.) from\n the mutex/rtmutex debugging code: it caused way too much prototype\n hackery, and lockdep will give the same information anyway.\n\n - ability to do silent tests\n\n - check lock freeing in vfree too.\n\n - more finegrained debugging options, to allow distributions to\n turn off more expensive debugging features.\n\nThere\u0027s no separate \u0027held mutexes\u0027 list anymore - but there\u0027s a \u0027held locks\u0027\nstack within lockdep, which unifies deadlock detection across all lock\nclasses. (this is independent of the lockdep validation stuff - lockdep first\nchecks whether we are holding a lock already)\n\nHere are the current debugging options:\n\nCONFIG_DEBUG_MUTEXES\u003dy\nCONFIG_DEBUG_LOCK_ALLOC\u003dy\n\nwhich do:\n\n config DEBUG_MUTEXES\n bool \"Mutex debugging, basic checks\"\n\n config DEBUG_LOCK_ALLOC\n bool \"Detect incorrect freeing of live mutexes\"\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6ab3d5624e172c553004ecc862bfeac16d9d68b7", "tree": "6d98881fe91fd9583c109208d5c27131b93fa248", "parents": [ "e02169b682bc448ccdc819dc8639ed34a23cedd8" ], "author": { "name": "Jörn Engel", "email": "joern@wohnheim.fh-wedel.de", "time": "Fri Jun 30 19:25:36 2006 +0200" }, "committer": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Fri Jun 30 19:25:36 2006 +0200" }, "message": "Remove obsolete #include \u003clinux/config.h\u003e\n\nSigned-off-by: Jörn Engel \u003cjoern@wohnheim.fh-wedel.de\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n" }, { "commit": "bf36b9011e3c5b2739f9da2f6de8a6fa3edded32", "tree": "94bba12c78c6bc6a36dbb38faf3a6903a64e2e8a", "parents": [ "21e4f9526989009282fe26280560ff3fbc21c9e0" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Sat Mar 25 03:07:08 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Mar 25 08:22:52 2006 -0800" }, "message": "[PATCH] sysrq cleanup\n\nsysrq.c is fairly revolting. Fix.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9b0f8b040acd8dfd23860754c0d09ff4f44e2cbc", "tree": "33c69908705c88b86f14d9e835b6dee6a9c3a31b", "parents": [ "9827b781f20828e5ceb911b879f268f78fe90815" ], "author": { "name": "Christoph Lameter", "email": "clameter@engr.sgi.com", "time": "Mon Feb 20 18:27:52 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Feb 20 20:00:09 2006 -0800" }, "message": "[PATCH] Terminate process that fails on a constrained allocation\n\nSome allocations are restricted to a limited set of nodes (due to memory\npolicies or cpuset constraints). If the page allocator is not able to find\nenough memory then that does not mean that overall system memory is low.\n\nIn particular going postal and more or less randomly shooting at processes\nis not likely going to help the situation but may just lead to suicide (the\nwhole system coming down).\n\nIt is better to signal to the process that no memory exists given the\nconstraints that the process (or the configuration of the process) has\nplaced on the allocation behavior. The process may be killed but then the\nsysadmin or developer can investigate the situation. The solution is\nsimilar to what we do when running out of hugepages.\n\nThis patch adds a check before we kill processes. At that point\nperformance considerations do not matter much so we just scan the zonelist\nand reconstruct a list of nodes. If the list of nodes does not contain all\nonline nodes then this is a constrained allocation and we should kill the\ncurrent process.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "de5097c2e73f826302cd8957c225b3725e0c7553", "tree": "3d56ab6fd891088ac55a9ef529faf4360391a22f", "parents": [ "408894ee4dd4debfdedd472eb4d8414892fc90f6" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jan 09 15:59:21 2006 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@hera.kernel.org", "time": "Mon Jan 09 15:59:21 2006 -0800" }, "message": "[PATCH] mutex subsystem, more debugging code\n\nmore mutex debugging: check for held locks during memory freeing,\ntask exit, enable sysrq printouts, etc.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@infradead.org\u003e\n" }, { "commit": "cf62ddce2ee137ff92ad11ae762338b864f1dee5", "tree": "c0d0ffa576641a15c04f05cb83192ddfaffe8bd0", "parents": [ "0ce6e62bd6591777bd92873e2db93fdbc5228122" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Tue Nov 08 21:39:47 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:40 2005 -0800" }, "message": "[PATCH] drivers/char/sysrq.c: make two functions static\n\nThis patch makes two needlessly global functions static.\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4de8b9b76017365572f778332d74fe050d9c8c2a", "tree": "17d22eacd721d3ff966f643b92e0243891fcb1a2", "parents": [ "2f048ea81df94f72dee0d42b3d9b941c03b8c9c5" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Jul 26 11:51:06 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 26 14:35:43 2005 -0700" }, "message": "[PATCH] Update sysrq-B to use emergency_restart()\n\nsysrq calls into the reboot path from an interrupt handler\nwe can either push the code do into process context and\ncall kernel_restart and get a clean reboot or we can simply\nreboot the machine, and increase our chances of actually\nrebooting. emergency_reboot() seems like the closest match\nto what we have previously done, and what we want.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "79b9ce311e192e9a31fd9f3cf1ee4a4edf9e2650", "tree": "210896405b2b70aded7582750e20967df8c8e7bf", "parents": [ "cb2c0233755429037462e16ea0d5497a0092738c" ], "author": { "name": "Marcelo Tosatti", "email": "marcelo.tosatti@cyclades.com", "time": "Thu Jul 07 17:56:04 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jul 07 18:23:35 2005 -0700" }, "message": "[PATCH] print order information when OOM killing\n\nDump the current allocation order when OOM killing.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6e274d144302068a00794ec22e73520c0615cb6f", "tree": "f7ea59ea47d3c5676fbac8d39e8deaa1f94146ae", "parents": [ "86b1ae38c0a62409dc862a28e3f08920f55f944b" ], "author": { "name": "Alexander Nyberg", "email": "alexn@telia.com", "time": "Sat Jun 25 14:58:26 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:54 2005 -0700" }, "message": "[PATCH] kdump: Use real pt_regs from exception\n\nMakes kexec_crashdump() take a pt_regs * as an argument. This allows to\nget exact register state at the point of the crash. If we come from direct\npanic assertion NULL will be passed and the current registers saved before\ncrashdump.\n\nThis hooks into two places:\ndie(): check the conditions under which we will panic when calling\ndo_exit and go there directly with the pt_regs that caused the fatal\nfault.\n\ndie_nmi(): If we receive an NMI lockup while in the kernel use the\npt_regs and go directly to crash_kexec(). We\u0027re probably nested up badly\nat this point so this might be the only chance to escape with proper\ninformation.\n\nSigned-off-by: Alexander Nyberg \u003calexn@telia.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "86b1ae38c0a62409dc862a28e3f08920f55f944b", "tree": "de7e2803949d9585d6d5554cbad9063d5d62f2cc", "parents": [ "315c215c0a7324894541d43b0e720f20cafca92e" ], "author": { "name": "Hariprasad Nellitheertha", "email": "hari@in.ibm.com", "time": "Sat Jun 25 14:58:25 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:54 2005 -0700" }, "message": "[PATCH] kdump: sysrq trigger mechanism for kexec based crashdumps\n\nAdd a sysrq-trigger mechanism for kexec based crashdumps. Alt-Sysrq-c\ntriggers a kexec based crashdump.\n\nSigned-off-by: Hariprasad Nellitheertha \u003chari@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d", "parents": [], "author": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n" } ] }