)]}' { "log": [ { "commit": "291041e935e6d0513f2b7e4a300aa9f02ec1d925", "tree": "626b06b52d5ce0a41c7bf21ce4314e2a9fbe79ff", "parents": [ "7a5c5d5735e785a700a377a5fce913b8ad45a58f" ], "author": { "name": "Al Viro", "email": "viro@ftp.linux.org.uk", "time": "Sun Oct 07 00:24:36 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Oct 07 16:28:43 2007 -0700" }, "message": "fix bogus reporting of signals by audit\n\nAsync signals should not be reported as sent by current in audit log. As\nit is, we call audit_signal_info() too early in check_kill_permission().\nNote that check_kill_permission() has that test already - it needs to know\nif it should apply current-based permission checks. So the solution is to\nmove the call of audit_signal_info() between those.\n\nBogosity in question is easily reproduced - add a rule watching for e.g.\nkill(2) from specific process (so that audit_signal_info() would not\nshort-circuit to nothing), say load_policy, watch the bogus OBJ_PID entry\nin audit logs claiming that write(2) on selinuxfs file issued by\nload_policy(8) had somehow managed to send a signal to syslogd...\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nAcked-by: Steve Grubb \u003csgrubb@redhat.com\u003e\nAcked-by: Eric Paris \u003ceparis@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": "b8fceee17a310f189188599a8fa5e9beaff57eb0", "tree": "21308319be2579059a4d4d7db680a73334659f82", "parents": [ "9db619e66503494e41159de3c76fafabe80d016b" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Thu Sep 20 12:40:16 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Sep 20 13:19:59 2007 -0700" }, "message": "signalfd simplification\n\nThis simplifies signalfd code, by avoiding it to remain attached to the\nsighand during its lifetime.\n\nIn this way, the signalfd remain attached to the sighand only during\npoll(2) (and select and epoll) and read(2). This also allows to remove\nall the custom \"tsk \u003d\u003d current\" checks in kernel/signal.c, since\ndequeue_signal() will only be called by \"current\".\n\nI think this is also what Ben was suggesting time ago.\n\nThe external effect of this, is that a thread can extract only its own\nprivate signals and the group ones. I think this is an acceptable\nbehaviour, in that those are the signals the thread would be able to\nfetch w/out signalfd.\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "60187d2708caa870f0825d753df1612ea688eb9e", "tree": "35bbae1a2cdc1887ea1d85aa9c03ec0415dc5912", "parents": [ "99db67bc04af0f2e8cb710ac92aaeb9af135a7c6" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Thu Aug 30 23:56:35 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Aug 31 01:42:23 2007 -0700" }, "message": "sigqueue_free: fix the race with collect_signal()\n\nSpotted by taoyue \u003cyue.tao@windriver.com\u003e and Jeremy Katz \u003cjeremy.katz@windriver.com\u003e.\n\ncollect_signal:\t\t\t\tsigqueue_free:\n\n\tlist_del_init(\u0026first-\u003elist);\n\t\t\t\t\t\tif (!list_empty(\u0026q-\u003elist)) {\n\t\t\t\t\t\t\t// not taken\n\t\t\t\t\t\t}\n\t\t\t\t\t\tq-\u003eflags \u0026\u003d ~SIGQUEUE_PREALLOC;\n\n\t__sigqueue_free(first);\t\t\t__sigqueue_free(q);\n\nNow, __sigqueue_free() is called twice on the same \"struct sigqueue\" with the\nobviously bad implications.\n\nIn particular, this double free breaks the array_cache-\u003eavail logic, so the\nsame sigqueue could be \"allocated\" twice, and the bug can manifest itself via\nthe \"impossible\" BUG_ON(!SIGQUEUE_PREALLOC) in sigqueue_free/send_sigqueue.\n\nHopefully this can explain these mysterious bug-reports, see\n\n\thttp://marc.info/?t\u003d118766926500003\n\thttp://marc.info/?t\u003d118466273000005\n\nAlexey Dobriyan reports this patch makes the difference for the testcase, but\nnobody has an access to the application which opened the problems originally.\n\nAlso, this patch removes tasklist lock/unlock, -\u003esiglock is enough.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: taoyue \u003cyue.tao@windriver.com\u003e\nCc: Jeremy Katz \u003cjeremy.katz@windriver.com\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@sw.ru\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "834d216e1f804560bd1421c511ad168d7c24b01d", "tree": "c245ab7814bc54c6f3b8aa877d2dd77c92450a76", "parents": [ "d02479bdeb1c9b037892061cdcf4e730183391fa" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Wed Aug 22 14:01:42 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Aug 22 19:52:46 2007 -0700" }, "message": "signalfd: fix interaction with posix-timers\n\ndequeue_signal:\n\n\tif (__SI_TIMER) {\n\t\tspin_unlock(\u0026tsk-\u003esighand-\u003esiglock);\n\t\tdo_schedule_next_timer(info);\n\t\tspin_lock(\u0026tsk-\u003esighand-\u003esiglock);\n\t}\n\nUnless tsk \u003d\u003d curent, this is absolutely unsafe: nothing prevents tsk from\nexiting. If signalfd was passed to another process, do_schedule_next_timer()\nis just wrong.\n\nAdd yet another \"tsk \u003d\u003d current\" check into dequeue_signal().\n\nThis patch fixes an oopsable bug, but breaks the scheduling of posix timers\nif the shared __SI_TIMER signal was fetched via signalfd attached to another\nsub-thread. Mostly fixed by the next patch.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "247284481ca40288bd120cf0707681c3bdbee78f", "tree": "d0de3020d9961561b66b44af8ddc9e4d1442a7fe", "parents": [ "b6b1d87785712474d0ed80689c17107d616a1171" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sat Aug 04 01:04:41 2007 +0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Aug 03 15:06:33 2007 -0700" }, "message": "Kill some obsolete sub-thread-ptrace stuff\n\nThere is a couple of subtle checks which were needed to handle ptracing from\nthe same thread group. This was deprecated a long ago, imho this code just\ncomplicates the understanding.\n\nAnd, the \"-\u003eparent-\u003esignal-\u003eflags \u0026 SIGNAL_GROUP_EXIT\" check in exit_notify()\nis not right. SIGNAL_GROUP_EXIT can mean exec(), not exit_group(). This means\nptracer can lose a ptraced zombie on exec(). Minor problem, but still the bug.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "abd4f7505bafdd6c5319fe3cb5caf9af6104e17a", "tree": "a543fce720331dbf6194a2c0471f36b7727b9736", "parents": [ "5fa63fccc579ac609fc7f86d29ccb3a2edf910d7" ], "author": { "name": "Masoud Asgharifard Sharbiani", "email": "masouds@google.com", "time": "Sun Jul 22 11:12:28 2007 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Jul 22 11:03:37 2007 -0700" }, "message": "x86: i386-show-unhandled-signals-v3\n\nThis patch makes the i386 behave the same way that x86_64 does when a\nsegfault happens. A line gets printed to the kernel log so that tools\nthat need to check for failures can behave more uniformly between\ndebug.show_unhandled_signals sysctl variable to 0 (or by doing echo 0 \u003e\n/proc/sys/debug/exception-trace)\n\nAlso, all of the lines being printed are now using printk_ratelimit() to\ndeny the ability of DoS from a local user with a program like the\nfollowing:\n\nmain()\n{\n while (1)\n if (!fork()) *(int *)0 \u003d 0;\n}\n\nThis new revision also includes the fix that Andrew did which got rid of\nnew sysctl that was added to the system in earlier versions of this.\nAlso, \u0027show-unhandled-signals\u0027 sysctl has been renamed back to the old\n\u0027exception-trace\u0027 to avoid breakage of people\u0027s scripts.\n\nAK: Enabling by default for i386 will be likely controversal, but let\u0027s see what happens\nAK: Really folks, before complaining just fix your segfaults\nAK: I bet this will find a lot of silent issues\n\nSigned-off-by: Masoud Sharbiani \u003cmasouds@google.com\u003e\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\n[ Personally, I\u0027ve found the complaints useful on x86-64, so I\u0027m all for\n this. That said, I wonder if we could do it more prettily.. -Linus ]\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "45807a1df9f51d28d0ff0c6bcf900c210411d7c9", "tree": "df70e9162ce50ada2393987ca2a5b5794dcbb644", "parents": [ "99fc06df72fe1c9ad3ec274720dcb5658c40bfd2" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Jul 15 23:40:10 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Jul 16 09:05:43 2007 -0700" }, "message": "vdso: print fatal signals\n\nAdd the print-fatal-signals\u003d1 boot option and the\n/proc/sys/kernel/print-fatal-signals runtime switch.\n\nThis feature prints some minimal information about userspace segfaults to\nthe kernel console. This is useful to find early bootup bugs where\nuserspace debugging is very hard.\n\nDefaults to off.\n\n[akpm@linux-foundation.org: Don\u0027t add new sysctl numbers]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-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": "caec4e8dc85e0644ec24aeb36285e1ba02da58cc", "tree": "c40510afdc1676f268d14ecb8bfe2ab887cf0b0f", "parents": [ "bd197234b0a616c8f04f6b682326a5a24b33ca92" ], "author": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Tue Jun 12 08:16:18 2007 +1000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Jun 18 10:18:32 2007 -0700" }, "message": "Fix signalfd interaction with thread-private signals\n\nDon\u0027t let signalfd dequeue private signals off other threads (in the\ncase of things like SIGILL or SIGSEGV, trying to do so would result\nin undefined behaviour on who actually gets the signal, since they\nare force unblocked).\n\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b74d0deb968e1f85942f17080eace015ce3c332c", "tree": "7db612ba2931ef22ff7166f51dcb0fd1fe1d7ee1", "parents": [ "8381e04b90ce9e7669a2d20aa7aaff3be910e447" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Wed Jun 06 03:59:00 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Jun 07 08:52:15 2007 -0700" }, "message": "Restrict clearing TIF_SIGPENDING\n\nThis patch should get a few birds. It prevents sigaction calls from\nclearing TIF_SIGPENDING in other threads, which could leak -ERESTART*.\nAnd It fixes ptrace_stop not to clear it, which done at the syscall exit\nstop could leak -ERESTART*. It probably removes the harm from signalfd,\nat least assuming it never calls dequeue_signal on kernel threads that\nmight have used block_all_signals.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Satoru Takeuchi \u003ctakeuchi_satoru@jp.fujitsu.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7bb44adef39ad3bda2be40bb34686bc56bd563a5", "tree": "1e9eecbd03877c7ac8b00a8cb1d4ae54ebec3bb1", "parents": [ "3c6df2a9177c010bf811c361149069e4bfd9bb11" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Wed May 23 13:57:44 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 23 20:14:12 2007 -0700" }, "message": "recalc_sigpending_tsk fixes\n\nSteve Hawkes discovered a problem where recalc_sigpending_tsk was called in\ndo_sigaction but no signal_wake_up call was made, preventing later signals\nfrom waking up blocked threads with TIF_SIGPENDING already set.\n\nIn fact, the few other calls to recalc_sigpending_tsk outside the signals\ncode are also subject to this problem in other race conditions.\n\nThis change makes recalc_sigpending_tsk private to the signals code. It\nchanges the outside calls, as well as do_sigaction, to use the new\nrecalc_sigpending_and_wake instead.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: \u003cSteve.Hawkes@motorola.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": "853da0022023c046e0a5ccc51d427745f0c94de7", "tree": "bc36f80f00aa11c3c239a80ecf04ba8238219ce8", "parents": [ "5884c40668a928bba017eaf54e2eb3c01c8a98e6", "0a4ff8c2598b72f2fa9d50aae9e1809e684dbf41" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri May 11 09:57:16 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri May 11 09:57:16 2007 -0700" }, "message": "Merge branch \u0027audit.b38\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current\n\n* \u0027audit.b38\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:\n [PATCH] Abnormal End of Processes\n [PATCH] match audit name data\n [PATCH] complete message queue auditing\n [PATCH] audit inode for all xattr syscalls\n [PATCH] initialize name osid\n [PATCH] audit signal recipients\n [PATCH] add SIGNAL syscall class (v3)\n [PATCH] auditing ptrace\n" }, { "commit": "fba2afaaec790dc5ab4ae8827972f342211bbb86", "tree": "2694d4cd8c6b7d69a5569b92151d61a3d4af39b7", "parents": [ "5dc8bf8132d59c03fe2562bce165c2f03f021687" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Thu May 10 22:23:13 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri May 11 08:29:36 2007 -0700" }, "message": "signal/timer/event: signalfd core\n\nThis patch series implements the new signalfd() system call.\n\nI took part of the original Linus code (and you know how badly it can be\nbroken :), and I added even more breakage ;) Signals are fetched from the same\nsignal queue used by the process, so signalfd will compete with standard\nkernel delivery in dequeue_signal(). If you want to reliably fetch signals on\nthe signalfd file, you need to block them with sigprocmask(SIG_BLOCK). This\nseems to be working fine on my Dual Opteron machine. I made a quick test\nprogram for it:\n\nhttp://www.xmailserver.org/signafd-test.c\n\nThe signalfd() system call implements signal delivery into a file descriptor\nreceiver. The signalfd file descriptor if created with the following API:\n\nint signalfd(int ufd, const sigset_t *mask, size_t masksize);\n\nThe \"ufd\" parameter allows to change an existing signalfd sigmask, w/out going\nto close/create cycle (Linus idea). Use \"ufd\" \u003d\u003d -1 if you want a brand new\nsignalfd file.\n\nThe \"mask\" allows to specify the signal mask of signals that we are interested\nin. The \"masksize\" parameter is the size of \"mask\".\n\nThe signalfd fd supports the poll(2) and read(2) system calls. The poll(2)\nwill return POLLIN when signals are available to be dequeued. As a direct\nconsequence of supporting the Linux poll subsystem, the signalfd fd can use\nused together with epoll(2) too.\n\nThe read(2) system call will return a \"struct signalfd_siginfo\" structure in\nthe userspace supplied buffer. The return value is the number of bytes copied\nin the supplied buffer, or -1 in case of error. The read(2) call can also\nreturn 0, in case the sighand structure to which the signalfd was attached,\nhas been orphaned. The O_NONBLOCK flag is also supported, and read(2) will\nreturn -EAGAIN in case no signal is available.\n\nIf the size of the buffer passed to read(2) is lower than sizeof(struct\nsignalfd_siginfo), -EINVAL is returned. A read from the signalfd can also\nreturn -ERESTARTSYS in case a signal hits the process. The format of the\nstruct signalfd_siginfo is, and the valid fields depends of the (-\u003ecode \u0026\n__SI_MASK) value, in the same way a struct siginfo would:\n\nstruct signalfd_siginfo {\n\t__u32 signo;\t/* si_signo */\n\t__s32 err;\t/* si_errno */\n\t__s32 code;\t/* si_code */\n\t__u32 pid;\t/* si_pid */\n\t__u32 uid;\t/* si_uid */\n\t__s32 fd;\t/* si_fd */\n\t__u32 tid;\t/* si_fd */\n\t__u32 band;\t/* si_band */\n\t__u32 overrun;\t/* si_overrun */\n\t__u32 trapno;\t/* si_trapno */\n\t__s32 status;\t/* si_status */\n\t__s32 svint;\t/* si_int */\n\t__u64 svptr;\t/* si_ptr */\n\t__u64 utime;\t/* si_utime */\n\t__u64 stime;\t/* si_stime */\n\t__u64 addr;\t/* si_addr */\n};\n\n[akpm@linux-foundation.org: fix signalfd_copyinfo() on i386]\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e54dc2431d740a79a6bd013babade99d71b1714f", "tree": "16b0990d5c16946239a17b332f54b5918fb03305", "parents": [ "7f13da40e36c84d0d046b7adbd060af7d3717250" ], "author": { "name": "Amy Griffis", "email": "amy.griffis@hp.com", "time": "Thu Mar 29 18:01:04 2007 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri May 11 05:38:25 2007 -0400" }, "message": "[PATCH] audit signal recipients\n\nWhen auditing syscalls that send signals, log the pid and security\ncontext for each target process. Optimize the data collection by\nadding a counter for signal-related rules, and avoiding allocating an\naux struct unless we have more than one target process. For process\ngroups, collect pid/context data in blocks of 16. Move the\naudit_signal_info() hook up in check_kill_permission() so we audit\nattempts where permission is denied.\n\nSigned-off-by: Amy Griffis \u003camy.griffis@hp.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "10ab825bdef8df510f99c703a5a2d9b13a4e31a5", "tree": "e4db81f26c03ba5a5bff43ed44646a4ed4509d67", "parents": [ "5de18d169739293e27e0cf9acfc75a2d2f4aa572" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Wed May 09 02:34:37 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 09 12:30:53 2007 -0700" }, "message": "change kernel threads to ignore signals instead of blocking them\n\nCurrently kernel threads use sigprocmask(SIG_BLOCK) to protect against\nsignals. This doesn\u0027t prevent the signal delivery, this only blocks\nsignal_wake_up(). Every \"killall -33 kthreadd\" means a \"struct siginfo\"\nleak.\n\nChange kthreadd_setup() to set all handlers to SIG_IGN instead of blocking\nthem (make a new helper ignore_signals() for that). If the kernel thread\nneeds some signal, it should use allow_signal() anyway, and in that case it\nshould not use CLONE_SIGHAND.\n\nNote that we can\u0027t change daemonize() (should die!) in the same way,\nbecause it can be used along with CLONE_SIGHAND. This means that\nallow_signal() still should unblock the signal to work correctly with\ndaemonize()ed threads.\n\nHowever, disallow_signal() doesn\u0027t block the signal any longer but ignores\nit.\n\nNOTE: with or without this patch the kernel threads are not protected from\nhandle_stop_signal(), this seems harmless, but not good.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-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": "a4798833d26b293fd18b7bf102991426aa0b56fd", "tree": "a564a45ee791e8418692c4171ed018dc90734238", "parents": [ "85f4186af944c1240c84934a9ab578743df2d69b" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Wed May 09 02:34:21 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 09 12:30:53 2007 -0700" }, "message": "zap_other_threads: remove unneeded -\u003eexit_signal change\n\nWe already depend on fact that all sub-threads have -\u003eexit_signal \u003d\u003d -1, no\nneed to set it in zap_other_threads().\n\nSigned-off-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": "55c0d1f83e481dd6c77f52f7dcfeb043b8b740fa", "tree": "5d3240d565c158712345094362d40c3973483a7f", "parents": [ "84963048ca8093e0aa71ac90c2a5fe7af5f617c3" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Wed May 09 02:33:37 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 09 12:30:49 2007 -0700" }, "message": "Move sig_kernel_* et al macros to linux/signal.h\n\nThis patch moves the sig_kernel_* and related macros from kernel/signal.c\nto linux/signal.h, and cleans them up slightly. I need the sig_kernel_*\nmacros for default signal behavior in the utrace code, and want to avoid\nduplication or overhead to share the knowledge.\n\nSigned-off-by: 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": "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": "0a31bd5f2bbb6473ef9d24f0063ca91cfa678b64", "tree": "a945e829bf6bf7a93bf844b2ee9f2a3a2fa17c5d", "parents": [ "5af60839909b8e3b28ca7cd7912fa0b23475617f" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Sun May 06 14:49:57 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon May 07 12:12:55 2007 -0700" }, "message": "KMEM_CACHE(): simplify slab cache creation\n\nThis patch provides a new macro\n\nKMEM_CACHE(\u003cstruct\u003e, \u003cflags\u003e)\n\nto simplify slab creation. KMEM_CACHE creates a slab with the name of the\nstruct, with the size of the struct and with the alignment of the struct.\nAdditional slab flags may be specified if necessary.\n\nExample\n\nstruct test_slab {\n\tint a,b,c;\n\tstruct list_head;\n} __cacheline_aligned_in_smp;\n\ntest_slab_cache \u003d KMEM_CACHE(test_slab, SLAB_PANIC)\n\nwill create a new slab named \"test_slab\" of the size sizeof(struct\ntest_slab) and aligned to the alignment of test slab. If it fails then we\npanic.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b0138a6cb7923a997d278b47c176778534d1095b", "tree": "4fcb8822a69631baba568e4e1942847747123887", "parents": [ "6572d6d7d0f965dda19d02af804ed3ae4b3bf1fc", "1055a8af093fea7490445bd15cd671020e542035" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Feb 26 12:48:06 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Feb 26 12:48:06 2007 -0800" }, "message": "Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6\n\n* master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6: (78 commits)\n [PARISC] Use symbolic last syscall in __NR_Linux_syscalls\n [PARISC] Add missing statfs64 and fstatfs64 syscalls\n Revert \"[PARISC] Optimize TLB flush on SMP systems\"\n [PARISC] Compat signal fixes for 64-bit parisc\n [PARISC] Reorder syscalls to match unistd.h\n Revert \"[PATCH] make kernel/signal.c:kill_proc_info() static\"\n [PARISC] fix sys_rt_sigqueueinfo\n [PARISC] fix section mismatch warnings in harmony sound driver\n [PARISC] do not export get_register/set_register\n [PARISC] add ENTRY()/ENDPROC() and simplify assembly of HP/UX emulation code\n [PARISC] convert to use CONFIG_64BIT instead of __LP64__\n [PARISC] use CONFIG_64BIT instead of __LP64__\n [PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macro\n [PARISC] more ENTRY(), ENDPROC(), END() conversions\n [PARISC] fix ENTRY() and ENDPROC() for 64bit-parisc\n [PARISC] Fixes /proc/cpuinfo cache output on B160L\n [PARISC] implement standard ENTRY(), END() and ENDPROC()\n [PARISC] kill ENTRY_SYS_CPUS\n [PARISC] clean up debugging printks in smp.c\n [PARISC] factor syscall_restart code out of do_signal\n ...\n\nFix conflict in include/linux/sched.h due to kill_proc_info() being made\npublicly available to PARISC again.\n" }, { "commit": "c3de4b38153a201cfc8561abb093a1b482fd3abb", "tree": "30226ed724dac5502a930a0004274cdc1a506128", "parents": [ "d104f11c3989b0bbe1216f6ad663d0ed91fb7bd8" ], "author": { "name": "Matthew Wilcox", "email": "matthew@wil.cx", "time": "Fri Feb 09 08:11:47 2007 -0700" }, "committer": { "name": "Kyle McMartin", "email": "kyle@athena.road.mcmartin.ca", "time": "Sat Feb 17 01:20:07 2007 -0500" }, "message": "Revert \"[PATCH] make kernel/signal.c:kill_proc_info() static\"\n\nThis reverts commit d3228a887cae75ef2b8b1211c31c539bef5a5698.\nDeBunk this code. We need it for compat_sys_rt_sigqueueinfo.\n\nSigned-off-by: Kyle McMartin \u003ckyle@parisc-linux.org\u003e\n" }, { "commit": "8bfd9a7a229b5f3d3eda5d7d45c2eebec5b4ba16", "tree": "01c910a659f387b921493cab9bd4decd8fa66a4e", "parents": [ "54cdfdb47f73b5af3d1ebb0f1e383efbe70fde9e" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri Feb 16 01:28:12 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 16 08:13:59 2007 -0800" }, "message": "[PATCH] hrtimers: prevent possible itimer DoS\n\nFix potential setitimer DoS with high-res timers by pushing itimer rearm\nprocessing to process context.\n\n[Fixes from: Ingo Molnar \u003cmingo@elte.hu\u003e]\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\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": "27b0b2f44adffe0193a695bb528a83b550b8e54b", "tree": "fd7578afab2e9fa72e3f157f94c9dd73a8265678", "parents": [ "9f57a54b6cf3f626334d97e93b5b917ad11e1efc" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Mon Feb 12 00:53:02 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Feb 12 09:48:32 2007 -0800" }, "message": "[PATCH] pid: remove the now unused kill_pg kill_pg_info and __kill_pg_info\n\nNow that I have changed all of the in-tree users remove the old version of\nthese functions. This should make it clear to any out of tree users that they\nshould be using kill_pgrp kill_pgrp_info or __kill_pgrp_info instead.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\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": "3e7cd6c413c9e6fbb5e1ee2acdadb4ababd2d474", "tree": "de97d00794ee0c787b6c551a91e33fb1faa48caa", "parents": [ "0475ac0845f9295bc5f69af45f58dff2c104c8d1" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Mon Feb 12 00:52:58 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Feb 12 09:48:32 2007 -0800" }, "message": "[PATCH] pid: replace is_orphaned_pgrp with is_current_pgrp_orphaned\n\nEvery call to is_orphaned_pgrp passed in process_group(current) which is racy\nwith respect to another thread changing our process group. It didn\u0027t bite us\nbecause we were dealing with integers and the worse we would get would be a\nstale answer.\n\nIn switching the checks to use struct pid to be a little more efficient and\nprepare the way for pid namespaces this race became apparent.\n\nSo I simplified the calls to the more specialized is_current_pgrp_orphaned so\nI didn\u0027t have to worry about making logic changes to avoid the race.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\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": "8d42db189ca99703f0f4f91c477cb54808c8eaaa", "tree": "9879222882a29c01dbff030c94ff8debbdcd1ddb", "parents": [ "0e25338bc11fa8e41e44e4db5b5101e3d882dc5b" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Mon Feb 12 00:52:55 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Feb 12 09:48:31 2007 -0800" }, "message": "[PATCH] signal: rewrite kill_something_info so it uses newer helpers\n\nThe goal is to remove users of the old signal helper functions so they can be\nremoved.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\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": "72fd4a35a824331d7a0f4168d7576502d95d34b3", "tree": "be27880bc36b7f62e8044a88b8744a35c5317714", "parents": [ "262086cf5b5343c2b81c97b1c606058e921859df" ], "author": { "name": "Robert P. J. Day", "email": "rpjday@mindspring.com", "time": "Sat Feb 10 01:45:59 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Feb 11 10:51:32 2007 -0800" }, "message": "[PATCH] Numerous fixes to kernel-doc info in source files.\n\nA variety of (mostly) innocuous fixes to the embedded kernel-doc content in\nsource files, including:\n\n * make multi-line initial descriptions single line\n * denote some function names, constants and structs as such\n * change erroneous opening \u0027/*\u0027 to \u0027/**\u0027 in a few places\n * reword some text for clarity\n\nSigned-off-by: Robert P. J. Day \u003crpjday@mindspring.com\u003e\nCc: \"Randy.Dunlap\" \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0c12b51712ced2c0d89a8ec3d546ed810f86d33e", "tree": "6d9baefd3148da87686ee259f51c35853377db1a", "parents": [ "b963a8441cb95999c97bea379607071a869c65f0" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sat Feb 10 01:44:56 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Feb 11 10:51:26 2007 -0800" }, "message": "[PATCH] kill_pid_info: kill acquired_tasklist_lock\n\nKill acquired_tasklist_lock, sig_needs_tasklist() is very cheap nowadays.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\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": "3df494a32b936aef76d893f5065f962ebd9b9437", "tree": "825a96b219eeb87ef7a627a2494cf4fa7cd4d03e", "parents": [ "6a2d7a955d8de6cb19ed9cd194b3c83008a22c32" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Wed Dec 13 00:34:28 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Wed Dec 13 09:05:49 2006 -0800" }, "message": "[PATCH] PM: Fix freezing of stopped tasks\n\nCurrently, if a task is stopped (ie. it\u0027s in the TASK_STOPPED state), it\nis considered by the freezer as unfreezeable. However, there may be a race\nbetween the freezer and the delivery of the continuation signal to the task\nresulting in the task running after we have finished freezing the other\ntasks. This, in turn, may lead to undesirable effects up to and including\ndata corruption.\n\nTo prevent this from happening we first need to make the freezer consider\nstopped tasks as freezeable. For this purpose we need to make freezeable()\nstop returning 0 for these tasks and we need to force them to enter the\nrefrigerator. However, if there\u0027s no continuation signal in the meantime,\nthe stopped tasks should remain stopped after all processes have been\nthawed, so we need to send an additional SIGSTOP to each of them before\nwaking it up.\n\nAlso, a stopped task that has just been woken up should first check if\nthere\u0027s a freezing request for it and go to the refrigerator if that\u0027s the\ncase.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "84d737866e2babdeab0c6b18ea155c6a649663b8", "tree": "e504da826174c2804d8c680828800aa680090686", "parents": [ "6cc1b22a4acef3816eaa5f8c227d93d749b23195" ], "author": { "name": "Sukadev Bhattiprolu", "email": "sukadev@us.ibm.com", "time": "Fri Dec 08 02:38:01 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Fri Dec 08 08:28:52 2006 -0800" }, "message": "[PATCH] add child reaper to pid_namespace\n\nAdd a per pid_namespace child-reaper. This is needed so processes are reaped\nwithin the same pid space and do not spill over to the parent pid space. Its\nalso needed so containers preserve existing semantic that pid \u003d\u003d 1 would reap\norphaned children.\n\nThis is based on Eric Biederman\u0027s patch: http://lkml.org/lkml/2006/2/6/285\n\nSigned-off-by: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nSigned-off-by: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "937949d9edbf4049bd41af6c9f92c26280584564", "tree": "d0a28f503b082f890cfa1f7fe952fda8fc771752", "parents": [ "ef55d53caa055aedee13e77da82740987dd64f2d" ], "author": { "name": "Cedric Le Goater", "email": "clg@fr.ibm.com", "time": "Fri Dec 08 02:37:54 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Fri Dec 08 08:28:51 2006 -0800" }, "message": "[PATCH] add process_session() helper routine\n\nReplace occurences of task-\u003esignal-\u003esession by a new process_session() helper\nroutine.\n\nIt will be useful for pid namespaces to abstract the session pid number.\n\nSigned-off-by: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d3228a887cae75ef2b8b1211c31c539bef5a5698", "tree": "05e8fcc5fd433a7c7a99b46985a6075c121c1248", "parents": [ "ebe7e5fe4b41deeb2731c5b52d8c8e6ac08b1f74" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Wed Dec 06 20:38:22 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:39 2006 -0800" }, "message": "[PATCH] make kernel/signal.c:kill_proc_info() 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": "7dfb71030f7636a0d65200158113c37764552f93", "tree": "276b812903d377b16d8828e888552fd256f48aab", "parents": [ "8a05aac2631aa0e6494d9dc990f8c68ed8b8fde7" ], "author": { "name": "Nigel Cunningham", "email": "ncunningham@linuxmail.org", "time": "Wed Dec 06 20:34:23 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:27 2006 -0800" }, "message": "[PATCH] Add include/linux/freezer.h and move definitions from sched.h\n\nMove process freezing functions from include/linux/sched.h to freezer.h, so\nthat modifications to the freezer or the kernel configuration don\u0027t require\nrecompiling just about everything.\n\n[akpm@osdl.org: fix ueagle driver]\nSigned-off-by: Nigel Cunningham \u003cnigel@suspend2.net\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e18b890bb0881bbab6f4f1a6cd20d9c60d66b003", "tree": "4828be07e1c24781c264b42c5a75bcd968223c3f", "parents": [ "441e143e95f5aa1e04026cb0aa71c801ba53982f" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Wed Dec 06 20:33:20 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:25 2006 -0800" }, "message": "[PATCH] slab: remove kmem_cache_t\n\nReplace all uses of kmem_cache_t with struct kmem_cache.\n\nThe patch was generated using the following script:\n\n\t#!/bin/sh\n\t#\n\t# Replace one string by another in all the kernel sources.\n\t#\n\n\tset -e\n\n\tfor file in `find * -name \"*.c\" -o -name \"*.h\"|xargs grep -l $1`; do\n\t\tquilt add $file\n\t\tsed -e \"1,\\$s/$1/$2/g\" $file \u003e/tmp/$$\n\t\tmv /tmp/$$ $file\n\t\tquilt refresh\n\tdone\n\nThe script was run like this\n\n\tsh replace kmem_cache_t \"struct kmem_cache\"\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "10b1fbdb0a0ca91847a534ad26d0bc250c25b74f", "tree": "67a3e6d7069e9281b0f5819f4acf91d7150a5d74", "parents": [ "45c18b0bb579b5c1b89f8c99f1b6ffa4c586ba08" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Nov 04 13:03:00 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Nov 04 13:03:00 2006 -0800" }, "message": "Make sure \"user-\u003esigpending\" count is in sync\n\nThe previous commit (45c18b0bb579b5c1b89f8c99f1b6ffa4c586ba08, aka \"Fix\nunlikely (but possible) race condition on task-\u003euser access\") fixed a\npotential oops due to __sigqueue_alloc() getting its \"user\" pointer out\nof sync with switch_user(), and accessing a user pointer that had been\nde-allocated on another CPU.\n\nIt still left another (much less serious) problem, where a concurrent\n__sigqueue_alloc and swich_user could cause sigqueue_alloc to do signal\npending reference counting for a _different_ user than the one it then\nactually ended up using. No oops, but we\u0027d end up with the wrong signal\naccounting.\n\nAnother case of Oleg\u0027s eagle-eyes picking up the problem.\n\nThis is trivially fixed by just making sure we load whichever \"user\"\nstructure we decide to use (it doesn\u0027t matter _which_ one we pick, we\njust need to pick one) just once.\n\nAcked-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Andrew Morton \u003cakpm@osdl.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2425c08b37244005ff221efe4957d8aaff18609c", "tree": "488a298587acb651bd6964c0f9d53c9f48327362", "parents": [ "43fa1adb9334bf4585cd53144eb5911488f85bc7" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Mon Oct 02 02:17:28 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 02 07:57:15 2006 -0700" }, "message": "[PATCH] usb: fixup usb so it uses struct pid\n\nThe problem with remembering a user space process by its pid is that it is\npossible that the process will exit, pid wrap around will occur.\nConverting to a struct pid avoid that problem, and paves the way for\nimplementing a pid namespace.\n\nAlso since usb is the only user of kill_proc_info_as_uid rename\nkill_proc_info_as_uid to kill_pid_info_as_uid and have the new version take\na struct pid.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c4b92fc112f7be5cce308128236ff75cc98535c3", "tree": "ea4dfac4355c64decbf6aa1ca65af76af43b90fb", "parents": [ "558cb325485aaf655130f140e8ddd25392f6c972" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Mon Oct 02 02:17:10 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 02 07:57:13 2006 -0700" }, "message": "[PATCH] pid: implement signal functions that take a struct pid *\n\nCurrently the signal functions all either take a task or a pid_t argument.\nThis patch implements variants that take a struct pid *. After all of the\nusers have been update it is my intention to remove the variants that take a\npid_t as using pid_t can be more work (an extra hash table lookup) and\ndifficult to get right in the presence of multiple pid namespaces.\n\nThere are two kinds of functions introduced in this patch. The are the\ngeneral use functions kill_pgrp and kill_pid which take a priv argument that\nis ultimately used to create the appropriate siginfo information, Then there\nare _kill_pgrp_info, kill_pgrp_info, kill_pid_info the internal implementation\nhelpers that take an explicit siginfo.\n\nThe distinction is made because filling out an explcit siginfo is tricky, and\nwill be even more tricky when pid namespaces are introduced.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "27d91e07f9b863fa94491ffafe250580f0c2ce78", "tree": "0e5237670110b70496d68398e68a071c43c9e03e", "parents": [ "b9ecb2bd5d3ab8904752685696cb76aac1f3fef2" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Sep 29 02:00:31 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 29 09:18:15 2006 -0700" }, "message": "[PATCH] __dequeue_signal() cleanup\n\nThis tightens up __dequeue_signal a little. It also avoids doing\nrecalc_sigpending twice in a row, instead doing it once in dequeue_signal.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: 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": "f269fdd1829acc5e53bf57b145003e5733133f2b", "tree": "494fef02f26f089f14c719e9a4394a41f7b686ec", "parents": [ "930e652a21a08986b03d1f370f933057dc0db2dc" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Sep 27 01:50:23 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 27 08:26:15 2006 -0700" }, "message": "[PATCH] NOMMU: move the fallback arch_vma_name() to a sensible place\n\nMove the fallback arch_vma_name() to a sensible place (kernel/signal.c).\n\nCurrently it\u0027s in fs/proc/task_mmu.c, a file that is dependent on both\nCONFIG_PROC_FS and CONFIG_MMU being enabled, but it\u0027s used from\nkernel/signal.c from where it is called unconditionally.\n\n[akpm@osdl.org: build fix]\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ae74c3b69a08e1de20cb681ec959f3a48af0006a", "tree": "97def06a79fdaee2294ef197666a369b18728058", "parents": [ "202668ecb6cb221460d884598dd4cd2e1f3292f3" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Aug 02 20:17:49 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Aug 02 20:17:49 2006 -0700" }, "message": "Fix force_sig_info() semantics after cleanups\n\nSuresh points out that commit b0423a0d9cc836b2c3d796623cd19236bfedfe63\nbroke the semantics of a synchronous signal like SIGSEGV occurring\nrecursively inside its own handler handler (or, indeed, any other\ncontext when the signal was blocked).\n\nThat was unintentional, and this fixes things up by reinstating the old\nsemantics, but without reverting the cleanups.\n\nCc: Paul E. McKenney \u003cpaulmck@us.ibm.com\u003e\nAcked-by: Suresh Siddha \u003csuresh.b.siddha@intel.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "22a3e233ca08a2ddc949ba1ae8f6e16ec7ef1a13", "tree": "7ef158ba2c30e0dde2dc103d1904fae243759a6b", "parents": [ "39302175c26d74be35715c05a0f342c9e64c21bf", "6ab3d5624e172c553004ecc862bfeac16d9d68b7" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 30 15:39:30 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 30 15:39:30 2006 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:\n Remove obsolete #include \u003clinux/config.h\u003e\n remove obsolete swsusp_encrypt\n arch/arm26/Kconfig typos\n Documentation/IPMI typos\n Kconfig: Typos in net/sched/Kconfig\n v9fs: do not include linux/version.h\n Documentation/DocBook/mtdnand.tmpl: typo fixes\n typo fixes: specfic -\u003e specific\n typo fixes in Documentation/networking/pktgen.txt\n typo fixes: occuring -\u003e occurring\n typo fixes: infomation -\u003e information\n typo fixes: disadvantadge -\u003e disadvantage\n typo fixes: aquire -\u003e acquire\n typo fixes: mecanism -\u003e mechanism\n typo fixes: bandwith -\u003e bandwidth\n fix a typo in the RTC_CLASS help text\n smb is no longer maintained\n\nManually merged trivial conflict in arch/um/kernel/vmlinux.lds.S\n" }, { "commit": "8f95dc58d0505516f5cc212a966aea2f2cdb5e44", "tree": "2a57ad36db88621ee079fffe34b1cf9bff62b1f4", "parents": [ "f9008e4c5c525941967b67777945aa6266ab6326" ], "author": { "name": "David Quigley", "email": "dpquigl@tycho.nsa.gov", "time": "Fri Jun 30 01:55:47 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 30 11:25:37 2006 -0700" }, "message": "[PATCH] SELinux: add security hook call to kill_proc_info_as_uid\n\nThis patch adds a call to the extended security_task_kill hook introduced by\nthe prior patch to the kill_proc_info_as_uid function so that these signals\ncan be properly mediated by security modules. It also updates the existing\nhook call in check_kill_permission.\n\nSigned-off-by: David Quigley \u003cdpquigl@tycho.nsa.gov\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\nCc: Stephen Smalley \u003csds@tycho.nsa.gov\u003e\nCc: Chris Wright \u003cchrisw@sous-sol.org\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": "d5f70c00ad24cd1158d3678b44ff969b4c971d49", "tree": "b4b71a71b413250fb24cb2d83cbbfd7507da9efc", "parents": [ "281de339ceb822ca6c04d4373ecb9a45c1890ce4" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Mon Jun 26 00:26:07 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:27 2006 -0700" }, "message": "[PATCH] coredump: kill ptrace related stuff\n\nWith this patch zap_process() sets SIGNAL_GROUP_EXIT while sending SIGKILL to\nthe thread group. This means that a TASK_TRACED task\n\n\t1. Will be awakened by signal_wake_up(1)\n\n\t2. Can\u0027t sleep again via ptrace_notify()\n\n\t3. Can\u0027t go to do_signal_stop() after return\n\t from ptrace_stop() in get_signal_to_deliver()\n\nSo we can remove all ptrace related stuff from coredump path.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e1396065e0489f98b35021b97907ab4edbfb24e1", "tree": "a276ea0a2ece9132d435adf1a1f82d0ada1ae938", "parents": [ "473ae30bc7b1dda5c5791c773f95e9424ddfead9" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu May 25 10:19:47 2006 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jun 20 05:25:21 2006 -0400" }, "message": "[PATCH] collect sid of those who send signals to auditd\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "e57a5059846e55d82b86d96dde40e988598601b3", "tree": "85b0f48406b37b46261735cbdd66e379977a0327", "parents": [ "c06511d12d720b23c8dffff23004f0a888698f20" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Wed Apr 12 16:30:20 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Apr 14 08:59:13 2006 -0700" }, "message": "[PATCH] fix non-leader exec under ptrace\n\nThis reverts most of commit 30e0fca6c1d7d26f3f2daa4dd2b12c51dadc778a.\nIt broke the case of non-leader MT exec when ptraced.\nI think the bug it was intended to fix was already addressed by commit\n788e05a67c343fa22f2ae1d3ca264e7f15c25eaf.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nAcked-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a145410dccdb44f81d3b56763ef9b6f721f4e47c", "tree": "a2e6635223890acb3191332eb7ba7835fbd24586", "parents": [ "2514395ef88b46e895726a8d40966cb83de7940c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Apr 11 22:18:58 2006 +0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Apr 11 07:34:01 2006 -0700" }, "message": "[PATCH] __group_complete_signal: remove bogus BUG_ON\n\nCommit e56d090310d7625ecb43a1eeebd479f04affb48b\n\n [PATCH] RCU signal handling\n\nmade this BUG_ON() unsafe. This code runs under -\u003esiglock,\nwhile switch_exec_pids() takes tasklist_lock.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fda8bd78a15950b9b01a1c1477a9095cb08c27c1", "tree": "362ca651ed8fdf046c4755c8d96cd4957ecdf1eb", "parents": [ "524223ca8142d593124bde66f3ffa1deb6f56c06" ], "author": { "name": "Eric Sesterhenn", "email": "snakebyte@gmx.de", "time": "Sun Apr 02 13:44:47 2006 +0200" }, "committer": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Sun Apr 02 13:44:47 2006 +0200" }, "message": "BUG_ON() Conversion in kernel/signal.c\n\nthis changes if() BUG(); constructs to BUG_ON() which is\ncleaner, contains unlikely() and can better optimized away.\n\nSigned-off-by: Eric Sesterhenn \u003csnakebyte@gmx.de\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n" }, { "commit": "85b6bce3658a823aa169586fe71ffba0f12ccc71", "tree": "ad2ca0b501d2ff767889d15dfda22abec75f38c4", "parents": [ "1a75a3f0680d9c4bc4761512658b6fd664032e18" ], "author": { "name": "Pavel Machek", "email": "pavel@suse.cz", "time": "Fri Mar 31 02:30:06 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 31 12:18:50 2006 -0800" }, "message": "[PATCH] Fix suspend with traced tasks\n\nstrace /bin/bash misbehaves after resume; this fixes it.\n\n(akpm: it\u0027s scary calling refrigerator() in state TASK_TRACED, but it seems to\ndo the right thing).\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "547679087bc60277d11b11631d826895762c4505", "tree": "91759a5584b9d42302d4b54ecdde644bc47e781d", "parents": [ "a1d5e21e3e388fb2c16463d007e788b1e41b74f1" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:30 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:44 2006 -0800" }, "message": "[PATCH] send_sigqueue: simplify and fix the race\n\nsend_sigqueue() checks PF_EXITING, then locks p-\u003esighand-\u003esiglock. This is\nunsafe: \u0027p\u0027 can exit in between and set -\u003esighand \u003d NULL. The race is\ntheoretical, the window is tiny and irqs are disabled by the caller, so I\ndon\u0027t think we need the fix for -stable tree.\n\nConvert send_sigqueue() to use lock_task_sighand() helper.\n\nAlso, delete \u0027p-\u003eflags \u0026 PF_EXITING\u0027 re-check, it is unneeded and the\ncomment is wrong.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a1d5e21e3e388fb2c16463d007e788b1e41b74f1", "tree": "ab89b42c9c8a873ac2f7e98dac2dc1c1807d27a1", "parents": [ "883606a7c9e84e206f96c38f88c4bd66df72f51e" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:29 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:44 2006 -0800" }, "message": "[PATCH] do_notify_parent_cldstop: remove \u0027to_self\u0027 param\n\nThe previous patch has changed callsites of do_notify_parent_cldstop() so that\nto_self \u003d\u003d (-\u003eptrace \u0026 PT_PTRACED) always (as it should be). We can remove\nthis parameter now.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "883606a7c9e84e206f96c38f88c4bd66df72f51e", "tree": "8ac0a656ac7a46b83f00b0be094025104496332f", "parents": [ "dac27f4a09c274db048e80d2511102e540ac9e3a" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:28 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:44 2006 -0800" }, "message": "[PATCH] finish_stop: don\u0027t check stop_count \u003c 0\n\nRemove an obscure \u0027stop_count \u003c 0\u0027 check in finish_stop(). The previous patch\nmade this case impossible.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dac27f4a09c274db048e80d2511102e540ac9e3a", "tree": "feb4af6d7b1a784ece9909b8d5f11bd6ad83cdca", "parents": [ "a7e5328a06a2beee3a2bbfaf87ce2a7bbe937de1" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:28 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:44 2006 -0800" }, "message": "[PATCH] simplify do_signal_stop()\n\ndo_signal_stop() considers \u0027thread_group_empty()\u0027 as a special case.\nThis was needed to avoid taking tasklist_lock. Since this lock is\nunneeded any longer, we can remove this special case and simplify\nthe code even more.\n\nAlso, before this patch, finish_stop() was called with stop_count \u003d\u003d -1\nfor \u0027thread_group_empty()\u0027 case. This is not strictly wrong, but confusing\nand unneeded.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "88531f725bd52e37a7be726860e4ff3f09031d89", "tree": "e43f25881012112e29d3fc13e75ccc3ba3cd4dba", "parents": [ "aacc90944d4b1f2fcec73a8127eb60a3a701ce1c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:24 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:44 2006 -0800" }, "message": "[PATCH] do_sigaction: don\u0027t take tasklist_lock\n\ndo_sigaction() does not need tasklist_lock anymore, we can simplify the code.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a122b341b74c08020f6521b615acca6a692aac79", "tree": "d2e679f11f805a2817de127f195cf1a61ca22b98", "parents": [ "6108ccd3e2f3012d5eec582e0af4d75e693824da" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:22 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:43 2006 -0800" }, "message": "[PATCH] do_signal_stop: don\u0027t take tasklist_lock\n\ndo_signal_stop() does not need tasklist_lock anymore. So it does not need to\ndo misc re-checks, and we can simplify the code.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6108ccd3e2f3012d5eec582e0af4d75e693824da", "tree": "944465dbb375e98b628e799794ca60b8e0bed61e", "parents": [ "7d7185c818925ba5fe90efa75840d0b415032774" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:22 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:43 2006 -0800" }, "message": "[PATCH] relax sig_needs_tasklist()\n\nhandle_stop_signal() does not need tasklist_lock for SIG_KERNEL_STOP_MASK\nsignals anymore.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6a14c5c9da0b4c34b5be783403c54f0396fcfe77", "tree": "63e40e5761eb5327ae4f713b284c67128cb4d261", "parents": [ "c81addc9d3a0ebff2155e0cd86f90820ab97147e" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:18 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:43 2006 -0800" }, "message": "[PATCH] move __exit_signal() to kernel/exit.c\n\n__exit_signal() is private to release_task() now. I think it is better to\nmake it static in kernel/exit.c and export flush_sigqueue() instead - this\nfunction is much more simple and straightforward.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c81addc9d3a0ebff2155e0cd86f90820ab97147e", "tree": "56eb3a50f71e7a0e2a0f0daef4ec097375b06f8d", "parents": [ "29ff471234d53c7235db287bc52f91884c2977c6" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:17 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:43 2006 -0800" }, "message": "[PATCH] rename __exit_sighand to cleanup_sighand\n\nCosmetic, rename __exit_sighand to cleanup_sighand and move it close to\ncopy_sighand().\n\nThis matches copy_signal/cleanup_signal naming, and I think it is easier to\nfollow.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "29ff471234d53c7235db287bc52f91884c2977c6", "tree": "1572661596414515ebfcfd0d2ea55a4217606a5e", "parents": [ "6b3934ef52712ece50605dfc72e55d00c580831a" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:17 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:43 2006 -0800" }, "message": "[PATCH] cleanup __exit_signal()\n\nThis patch factors out duplicated code under \u0027if\u0027 branches. Also, BUG_ON()\nconversions and whitespace cleanups.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6b3934ef52712ece50605dfc72e55d00c580831a", "tree": "5ec3c4f69a20880f75de6ff8d7d2f67d96328df3", "parents": [ "7001510d0cbf51ad202dd2d0744f54104285cbb9" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:16 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:42 2006 -0800" }, "message": "[PATCH] copy_process: cleanup bad_fork_cleanup_signal\n\n__exit_signal() does important cleanups atomically under -\u003esiglock. It is\nalso called from copy_process\u0027s error path. This is not good, for example we\ncan\u0027t move __unhash_process() under -\u003esiglock for that reason.\n\nWe should not mix these 2 paths, just look at ugly \u0027if (p-\u003esighand)\u0027 under\n\u0027bad_fork_cleanup_sighand:\u0027 label. For copy_process() case it is sufficient\nto just backout copy_signal(), nothing more.\n\nAgain, nobody can see this task yet. For CLONE_THREAD case we just decrement\nsignal-\u003ecount, otherwise nobody can see this -\u003esignal and we can free it\nlockless.\n\nThis patch assumes it is safe to do exit_thread_group_keys() without\ntasklist_lock.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\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": "7001510d0cbf51ad202dd2d0744f54104285cbb9", "tree": "1df2a6930c460c12026231634b86d14b153a4a86", "parents": [ "a9e88e84b5245da0a1dadb6ccca70ae84e93ccf6" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:14 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:42 2006 -0800" }, "message": "[PATCH] copy_process: cleanup bad_fork_cleanup_sighand\n\nThe only caller of exit_sighand(tsk) is copy_process\u0027s error path. We can\ncall __exit_sighand() directly and kill exit_sighand().\n\nThis \u0027tsk\u0027 was not yet registered in pid_hash[] or init_task.tasks, it has no\nexternal references, nobody can see it, and\n\n\tIF (clone_flags \u0026 CLONE_SIGHAND)\n\t\tAt least \u0027current\u0027 has a reference to -\u003esighand, this\n\t\tmeans atomic_dec_and_test(sighand-\u003ecount) can\u0027t be true.\n\n\tELSE\n\t\tNobody can see this -\u003esighand, this means we can free it\n\t\twithout any locking.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a9e88e84b5245da0a1dadb6ccca70ae84e93ccf6", "tree": "2b155e7f5ce7ff14a986361fe81d77bf9039e95e", "parents": [ "f63ee72e0fb82e504a0489490babc7612c7cd6c2" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:14 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:42 2006 -0800" }, "message": "[PATCH] introduce sig_needs_tasklist() helper\n\nIn my opinion this patch cleans up the code.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f63ee72e0fb82e504a0489490babc7612c7cd6c2", "tree": "85167f8016d1f746135bf1777646a58c44376af1", "parents": [ "aa1757f90bea3f598b6e5d04d922a6a60200f1da" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:13 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:42 2006 -0800" }, "message": "[PATCH] introduce lock_task_sighand() helper\n\nAdd lock_task_sighand() helper and converts group_send_sig_info() to use\nit. Hopefully we will have more users soon.\n\nThis patch also removes \u0027!sighand-\u003ecount\u0027 and \u0027!p-\u003eusage\u0027 checks, I think\nthey both are bogus, racy and unneeded (but probably it makes sense to\nrestore them as BUG_ON()s).\n\n-\u003esighand is cleared and it\u0027s -\u003ecount is decremented in release_task() with\nsighand-\u003esiglock held, so it is a bug to have \u0027!p-\u003eusage || !-\u003ecount\u0027 after\nwe already locked and verified it is the same. On the other hand, an\nalready dead task without -\u003esighand can have a non-zero -\u003eusage due to\nptrace, for example.\n\nIf we read the stale value of -\u003esighand we must see the change after\nspin_lock(), because that change was done while holding that same old\n-\u003esighand.siglock.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "aa1757f90bea3f598b6e5d04d922a6a60200f1da", "tree": "4f8f3804b2595031d0b84de7086dc28375290f0d", "parents": [ "1f09f9749cdde4e69f95d62d96d2e03f50b3353c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:12 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:42 2006 -0800" }, "message": "[PATCH] convert sighand_cache to use SLAB_DESTROY_BY_RCU\n\nThis patch borrows a clever Hugh\u0027s \u0027struct anon_vma\u0027 trick.\n\nWithout tasklist_lock held we can\u0027t trust task-\u003esighand until we locked it\nand re-checked that it is still the same.\n\nBut this means we don\u0027t need to defer \u0027kmem_cache_free(sighand)\u0027. We can\nreturn the memory to slab immediately, all we need is to be sure that\nsighand-\u003esiglock can\u0027t dissapear inside rcu protected section.\n\nTo do so we need to initialize -\u003esiglock inside ctor function,\nSLAB_DESTROY_BY_RCU does the rest.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fef23e7fbb11a0a78cd61935f7056bc2b237995a", "tree": "a6ff460b3a5d11d01c0532de561eb81183e056c2", "parents": [ "ca9ba4471c1203bb6e759b76e83167fec54fe590" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Mar 28 16:10:58 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:40 2006 -0800" }, "message": "[PATCH] exec: allow init to exec from any thread.\n\nAfter looking at the problem of init calling exec some more I figured out\nan easy way to make the code work.\n\nThe actual symptom without out this patch is that all threads will die\nexcept pid \u003d\u003d 1, and the thread calling exec. The thread calling exec will\nwait forever for pid \u003d\u003d 1 to die.\n\nSince pid \u003d\u003d 1 does not install a handler for SIGKILL it will never die.\n\nThis modifies the tests for init from current-\u003epid \u003d\u003d 1 to the equivalent\ncurrent \u003d\u003d child_reaper. And then it causes exec in the ugly case to\nmodify child_reaper.\n\nThe only weird symptom is that you wind up with an init process that\ndoesn\u0027t have the oldest start time on the box.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a26fd335b481e0bd14f4e7d1f5e7bb1138b1731f", "tree": "5578fdb48025e7e2b54fb02c8c877858ad3e859a", "parents": [ "40953ed87dd68742de0dd1bdecdcdfebfe1d69ae" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Thu Mar 23 03:00:49 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Mar 23 07:38:15 2006 -0800" }, "message": "[PATCH] sigprocmask: kill unneeded temp var\n\nCleanup, remove unneeded double copying of current-\u003eblocked.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fc558a7496bfab3d29a68953b07a95883fdcfbb1", "tree": "f40935c321e088b40608ebbcc8fc502d269578da", "parents": [ "ce6ed29f3136bc4b3644ecf4091d6390d444f628" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Mar 23 03:00:05 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Mar 23 07:38:08 2006 -0800" }, "message": "[PATCH] swsusp: finally solve mysqld problem\n\nThis patch from Pavel moves userland freeze signals handling into more logical\nplace. It now hits even with mysqld running.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9ac95f2f90e022c16d293d7978faddf7e779a1a9", "tree": "dcc1769ed614585e956c20c718506cdfe4b0bf92", "parents": [ "c70d3d703ad94727dab2a3664aeee33d71e00715" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Thu Feb 09 22:41:50 2006 +0300" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Feb 09 16:17:36 2006 -0800" }, "message": "[PATCH] do_sigaction: cleanup -\u003esa_mask manipulation\n\nClear unblockable signals beforehand.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c70d3d703ad94727dab2a3664aeee33d71e00715", "tree": "c809680e7ea5167087d9ce77b2743e7fdf921b5b", "parents": [ "15508d22d00277a1f2a1022dce38f2772c810d32" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Thu Feb 09 22:41:41 2006 +0300" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Feb 09 16:17:36 2006 -0800" }, "message": "[PATCH] sys_signal: initialize -\u003esa_mask\n\nPointed out by Linus Torvalds.\n\nsys_signal() forgets to initialize -\u003esa_mask.\n\n( I suspect arch/ia64/ia32/ia32_signal.c:sys32_signal()\n also needs this fix )\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "514a01b880d28a3029d9e35de72ad8d2f95b31d0", "tree": "df6db749acdf0548bde145d2467ebfc894a736a9", "parents": [ "808249ceba49cdb3054c0aa5b75a61862d6cab94" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Fri Feb 03 03:04:41 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Feb 03 08:32:10 2006 -0800" }, "message": "[PATCH] uninline __sigqueue_free()\n\nFive callsites. I dunno how all this crap got back in there :(\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "150256d8aadb3a337c31efa9e175cbd25bf06b06", "tree": "8cd7e2a0bc6af23984682c5ea3ca687809580c5a", "parents": [ "a60fc5190a31d98508ea6a76f74217f4104e74b7" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Wed Jan 18 17:43:57 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jan 18 19:20:29 2006 -0800" }, "message": "[PATCH] Generic sys_rt_sigsuspend()\n\nThe TIF_RESTORE_SIGMASK flag allows us to have a generic implementation of\nsys_rt_sigsuspend() instead of duplicating it for each architecture. This\nprovides such an implementation and makes arch/powerpc use it.\n\nIt also tidies up the ppc32 sys_sigsuspend() to use TIF_RESTORE_SIGMASK.\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "858119e159384308a5dde67776691a2ebf70df0f", "tree": "f360768f999d51edc0863917ce0bf79e88c0ec4c", "parents": [ "b0a9499c3dd50d333e2aedb7e894873c58da3785" ], "author": { "name": "Arjan van de Ven", "email": "arjan@infradead.org", "time": "Sat Jan 14 13:20:43 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Jan 14 18:27:06 2006 -0800" }, "message": "[PATCH] Unlinline a bunch of other functions\n\nRemove the \"inline\" keyword from a bunch of big functions in the kernel with\nthe goal of shrinking it by 30kb to 40kb\n\nSigned-off-by: Arjan van de Ven \u003carjan@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Jeff Garzik \u003cjgarzik@pobox.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c59ede7b78db329949d9cdcd7064e22d357560ef", "tree": "f9dc9d464fdad5bfd464d983e77c1af031389dda", "parents": [ "e16885c5ad624a6efe1b1bf764e075d75f65a788" ], "author": { "name": "Randy.Dunlap", "email": "rdunlap@xenotime.net", "time": "Wed Jan 11 12:17:46 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jan 11 18:42:13 2006 -0800" }, "message": "[PATCH] move capable() to capability.h\n\n- Move capable() from sched.h to capability.h;\n\n- Use \u003clinux/capability.h\u003e where capable() is used\n\t(in include/, block/, ipc/, kernel/, a few drivers/,\n\tmm/, security/, \u0026 sound/;\n\tmany more drivers/ to go)\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "86174cdcb44c095ffd2e3ca69caa56244cf701d5", "tree": "37d6cd5e6145fb659f436399268be1e7be950e61", "parents": [ "08efd10edff199f0c992f04052e897a3f2048508" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Jan 08 01:03:28 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:13:57 2006 -0800" }, "message": "[PATCH] remove unneeded sig-\u003ecurr_target recalculation\n\nThis patch removes unneeded sig-\u003ecurr_target recalculation under \u0027if\n(atomic_dec_and_test(\u0026sig-\u003ecount))\u0027 in __exit_signal().\n\nWhen sig-\u003ecount \u003d\u003d 0 the signal can\u0027t be sent to this task and\nnext_thread(tsk) \u003d\u003d tsk anyway.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0811af28ce49fab963e3e6b8abcf8c460f971cd4", "tree": "a7a619307a471d713cddb67ef94e3768152fc4bb", "parents": [ "54b21a7992a31d30c9a91f7e0a00ffdb4bd0caee" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Jan 08 01:03:09 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:13:55 2006 -0800" }, "message": "[PATCH] kill_proc_info_as_uid: don\u0027t use hardcoded constants\n\nUse symbolic names instead of hardcoded constants.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Harald Welte \u003claforge@gnumonks.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "71fabd5e4835309b4feca6209122ce56c595c461", "tree": "7d9467a4f9678d2271f82d48ec075a316cb1523f", "parents": [ "b5f545c880a2a47947ba2118b2509644ab7a2969" ], "author": { "name": "George Anzinger", "email": "george@mvista.com", "time": "Sun Jan 08 01:02:48 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:13:53 2006 -0800" }, "message": "[PATCH] sigaction should clear all signals on SIG_IGN, not just \u003c 32\n\nWhile rooting aroung in the signal code trying to understand how to fix the\nSIG_IGN ploy (set sig handler to SIG_IGN and flood system with high speed\nrepeating timers) I came across what, I think, is a problem in sigaction()\nin that when processing a SIG_IGN request it flushes signals from 1 to\nSIGRTMIN and leaves the rest. Attempt to fix this.\n\nSigned-off-by: George Anzinger \u003cgeorge@mvista.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Linus Torvalds \u003ctorvalds@osdl.org\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": "2d89c929078588aa9b9c674ef03ee9aa816b59b8", "tree": "129971e5c75545c53236be294f521ec6e7021a2d", "parents": [ "e56d090310d7625ecb43a1eeebd479f04affb48b" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@us.ibm.com", "time": "Sun Jan 08 01:01:38 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:13:40 2006 -0800" }, "message": "[PATCH] Simpler signal-exit concurrency handling\n\nSome simplification in checking signal delivery against concurrent exit.\nInstead of using get_task_struct_rcu(), which increments the task_struct\nreference count, check the reference count after acquiring sighand lock.\n\nSigned-off-by: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e56d090310d7625ecb43a1eeebd479f04affb48b", "tree": "2f479215dff4a2d8f3a9ed85200a5bc4f51534be", "parents": [ "4369ef3c3e9d3bd9b879580678778f558d481e90" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Jan 08 01:01:37 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:13:40 2006 -0800" }, "message": "[PATCH] RCU signal handling\n\nRCU tasklist_lock and RCU signal handling: send signals RCU-read-locked\ninstead of tasklist_lock read-locked. This is a scalability improvement on\nSMP and a preemption-latency improvement under PREEMPT_RCU.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: William Irwin \u003cwli@holomorphy.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b17b0421d70f5b85a791afe145a16d5ca5f849aa", "tree": "0aca6753added9c76681d6eb63294a1943597dd9", "parents": [ "ba260e23efbabcff975f60401475c2bdd693f872" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Sun Nov 13 16:07:14 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:15 2005 -0800" }, "message": "[PATCH] signal handling: revert sigkill priority fix\n\nThis patch reverts commit c33880aaddbbab1ccf36f4457ed1090621f2e39a since\nit\u0027s not needed anymore. As pointed out by Roland McGrath the real fix\nis to deliver all signals before returning to user space.\nSee http://www.ussg.iu.edu/hypermail/linux/kernel/0509.2/0683.html\nA fix for s390 has been merged.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Linus Torvalds \u003ctorvalds@osdl.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7ed0175a462c4c30f6df6fac1cccac058f997739", "tree": "30e894294260f8595565b620a7bb0b9cf8d1d69c", "parents": [ "759979ab17512a061c3a3e870f091af27ccdcbfb" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Thu Nov 10 17:22:18 2005 +0300" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Nov 10 09:57:19 2005 -0800" }, "message": "[PATCH] Don\u0027t auto-reap traced children\n\nIf a task is being traced we never auto-reap it even if it might look\nlike its parent doesn\u0027t care. The tracer obviously _does_ care.\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b0423a0d9cc836b2c3d796623cd19236bfedfe63", "tree": "21c6ebdc052b4e085aacb295b55c168bc60bcae2", "parents": [ "ae6866c377943de73e2c95398ff0120516f167ce" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@us.ibm.com", "time": "Sun Oct 30 15:03:46 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:32 2005 -0800" }, "message": "[PATCH] Remove duplicate code in signal.c\n\nCombine a bit of redundant code between force_sig_info() and\nforce_sig_specific().\n\nSigned-off-by: paulmck@us.ibm.com\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ae6866c377943de73e2c95398ff0120516f167ce", "tree": "cd1e6a08f830de244696c5ff60f8309571cf090d", "parents": [ "621d31219d9a788bda924a0613048053f3f5f211" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Oct 30 15:03:46 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:32 2005 -0800" }, "message": "[PATCH] remove unneeded SI_TIMER checks\n\nThis patch removes checks for -\u003esi_code \u003d\u003d SI_TIMER from send_signal,\nspecific_send_sig_info, __group_send_sig_info.\n\nI think posix-timers.c used these functions some time ago, now it sends\nsignals via send_{,group_}sigqueue, so these hooks are unneeded.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "621d31219d9a788bda924a0613048053f3f5f211", "tree": "9fb9846fdd999ba04c436aa84c7da0d8233ac545", "parents": [ "b67a1b9e4bf878aa5d4b6b44cb5a251a2f425f0d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Oct 30 15:03:45 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:31 2005 -0800" }, "message": "[PATCH] cleanup the usage of SEND_SIG_xxx constants\n\nThis patch simplifies some checks for magic siginfo values. It should not\nchange the behaviour in any way.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b67a1b9e4bf878aa5d4b6b44cb5a251a2f425f0d", "tree": "8fa921440476083be42f21ce6d0c4091a3757742", "parents": [ "3e6716e748609a3a899e8d670e42832921bd45bc" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Oct 30 15:03:44 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:31 2005 -0800" }, "message": "[PATCH] remove hardcoded SEND_SIG_xxx constants\n\nThis patch replaces hardcoded SEND_SIG_xxx constants with\ntheir symbolic names.\n\nNo changes in affected .o files.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "30e0fca6c1d7d26f3f2daa4dd2b12c51dadc778a", "tree": "945004584995e3af816125245bbb2436cc8ebc9e", "parents": [ "68860ec10bcc07ab4f89f9d940e3b77ae5ca13b3" ], "author": { "name": "Andrea Arcangeli", "email": "andrea@suse.de", "time": "Sun Oct 30 15:02:38 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:22 2005 -0800" }, "message": "[PATCH] ptrace/coredump/exit_group deadlock\n\nI could seldom reproduce a deadlock with a task not killable in T state\n(TASK_STOPPED, not TASK_TRACED) by attaching a NPTL threaded program to\ngdb, by segfaulting the task and triggering a core dump while some other\ntask is executing exit_group and while one task is in ptrace_attached\nTASK_STOPPED state (not TASK_TRACED yet). This originated from a gdb\nbugreport (the fact gdb was segfaulting the task wasn\u0027t a kernel bug), but\nI just incidentally noticed the gdb bug triggered a real kernel bug as\nwell.\n\nMost threads hangs in exit_mm because the core_dumping is still going, the\ncore dumping hangs because the stopped task doesn\u0027t exit, the stopped task\ncan\u0027t wakeup because it has SIGNAL_GROUP_EXIT set, hence the deadlock.\n\nTo me it seems that the problem is that the force_sig_specific(SIGKILL) in\nzap_threads is a noop if the task has PF_PTRACED set (like in this case\nbecause gdb is attached). The __ptrace_unlink does nothing because the\nsignal-\u003eflags is set to SIGNAL_GROUP_EXIT|SIGNAL_STOP_DEQUEUED (verified).\n\nThe above info also shows that the stopped task hit a race and got the stop\nsignal (presumably by the ptrace_attach, only the attach, state is still\nTASK_STOPPED and gdb hangs waiting the core before it can set it to\nTASK_TRACED) after one of the thread invoked the core dump (it\u0027s the core\ndump that sets signal-\u003eflags to SIGNAL_GROUP_EXIT).\n\nSo beside the fact nobody would wakeup the task in __ptrace_unlink (the\nstate is _not_ TASK_TRACED), there\u0027s a secondary problem in the signal\nhandling code, where a task should ignore the ptrace-sigstops as long as\nSIGNAL_GROUP_EXIT is set (or the wakeup in __ptrace_unlink path wouldn\u0027t be\nenough).\n\nSo I attempted to make this patch that seems to fix the problem. There\nwere various ways to fix it, perhaps you prefer a different one, I just\nopted to the one that looked safer to me.\n\nI also removed the clearing of the stopped bits from the zap_other_threads\n(zap_other_threads was safe unlike zap_threads). I don\u0027t like useless\ncode, this whole NPTL signal/ptrace thing is already unreadable enough and\nfull of corner cases without confusing useless code into it to make it even\nless readable. And if this code is really needed, then you may want to\nexplain why it\u0027s not being done in the other paths that sets\nSIGNAL_GROUP_EXIT at least.\n\nEven after this patch I still wonder who serializes the read of\np-\u003eptrace in zap_threads.\n\nPatch is called ptrace-core_dump-exit_group-deadlock-1.\n\nThis was the trace I\u0027ve got:\n\ntest T ffff81003e8118c0 0 14305 1 14311 14309 (NOTLB)\nffff810058ccdde8 0000000000000082 000001f4000037e1 ffff810000000013\n 00000000000000f8 ffff81003e811b00 ffff81003e8118c0 ffff810011362100\n 0000000000000012 ffff810017ca4180\nCall Trace:\u003cffffffff801317ed\u003e{try_to_wake_up+893} \u003cffffffff80141677\u003e{finish_stop+87}\n \u003cffffffff8014367f\u003e{get_signal_to_deliver+1359} \u003cffffffff8010d3ad\u003e{do_signal+157}\n \u003cffffffff8013deee\u003e{ptrace_check_attach+222} \u003cffffffff80111575\u003e{sys_ptrace+2293}\n \u003cffffffff80131810\u003e{default_wake_function+0} \u003cffffffff80196399\u003e{sys_ioctl+73}\n \u003cffffffff8010dd27\u003e{sysret_signal+28} \u003cffffffff8010e00f\u003e{ptregscall_common+103}\n\ntest D ffff810011362100 0 14309 1 14305 14312 (NOTLB)\nffff810053c81cf8 0000000000000082 0000000000000286 0000000000000001\n 0000000000000195 ffff810011362340 ffff810011362100 ffff81002e338040\n ffff810001e0ca80 0000000000000001\nCall Trace:\u003cffffffff801317ed\u003e{try_to_wake_up+893} \u003cffffffff8044677d\u003e{wait_for_completion+173}\n \u003cffffffff80131810\u003e{default_wake_function+0} \u003cffffffff80137435\u003e{exit_mm+149}\n \u003cffffffff801381af\u003e{do_exit+479} \u003cffffffff80138d0c\u003e{do_group_exit+252}\n \u003cffffffff801436db\u003e{get_signal_to_deliver+1451} \u003cffffffff8010d3ad\u003e{do_signal+157}\n \u003cffffffff8013deee\u003e{ptrace_check_attach+222} \u003cffffffff80140850\u003e{specific_send_sig_info+2\n\n \u003cffffffff8014208a\u003e{force_sig_info+186} \u003cffffffff804479a0\u003e{do_int3+112}\n \u003cffffffff8010e308\u003e{retint_signal+61}\ntest D ffff81002e338040 0 14311 1 14716 14305 (NOTLB)\nffff81005ca8dcf8 0000000000000082 0000000000000286 0000000000000001\n 0000000000000120 ffff81002e338280 ffff81002e338040 ffff8100481cb740\n ffff810001e0ca80 0000000000000001\nCall Trace:\u003cffffffff801317ed\u003e{try_to_wake_up+893} \u003cffffffff8044677d\u003e{wait_for_completion+173}\n \u003cffffffff80131810\u003e{default_wake_function+0} \u003cffffffff80137435\u003e{exit_mm+149}\n \u003cffffffff801381af\u003e{do_exit+479} \u003cffffffff80142d0e\u003e{__dequeue_signal+558}\n \u003cffffffff80138d0c\u003e{do_group_exit+252} \u003cffffffff801436db\u003e{get_signal_to_deliver+1451}\n \u003cffffffff8010d3ad\u003e{do_signal+157} \u003cffffffff8013deee\u003e{ptrace_check_attach+222}\n \u003cffffffff80140850\u003e{specific_send_sig_info+208} \u003cffffffff8014208a\u003e{force_sig_info+186}\n \u003cffffffff804479a0\u003e{do_int3+112} \u003cffffffff8010e308\u003e{retint_signal+61}\n\ntest D ffff810017ca4180 0 14312 1 14309 13882 (NOTLB)\nffff81005d15fcb8 0000000000000082 ffff81005d15fc58 ffffffff80130816\n 0000000000000897 ffff810017ca43c0 ffff810017ca4180 ffff81003e8118c0\n 0000000000000082 ffffffff801317ed\nCall Trace:\u003cffffffff80130816\u003e{activate_task+150} \u003cffffffff801317ed\u003e{try_to_wake_up+893}\n \u003cffffffff8044677d\u003e{wait_for_completion+173} \u003cffffffff80131810\u003e{default_wake_function+0}\n \u003cffffffff8018cdc3\u003e{do_coredump+819} \u003cffffffff80445f52\u003e{thread_return+82}\n \u003cffffffff801436d4\u003e{get_signal_to_deliver+1444} \u003cffffffff8010d3ad\u003e{do_signal+157}\n \u003cffffffff8013deee\u003e{ptrace_check_attach+222} \u003cffffffff80140850\u003e{specific_send_sig_info+2\n\n \u003cffffffff804472e5\u003e{_spin_unlock_irqrestore+5} \u003cffffffff8014208a\u003e{force_sig_info+186}\n \u003cffffffff804476ff\u003e{do_general_protection+159} \u003cffffffff8010e308\u003e{retint_signal+61}\n\nSigned-off-by: Andrea Arcangeli \u003candrea@suse.de\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Linus Torvalds \u003ctorvalds@osdl.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6dd69f1061bfdeca230509b173438e0731bff767", "tree": "66094a2fdf02fd808b0661cc2a26c6ff64d1c590", "parents": [ "19a4fcb531659f2f7d18b5d04cee039176e9540d" ], "author": { "name": "Vadim Lobanov", "email": "vlobanov@speakeasy.net", "time": "Sun Oct 30 15:02:18 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:19 2005 -0800" }, "message": "[PATCH] Unify sys_tkill() and sys_tgkill()\n\nThe majority of the sys_tkill() and sys_tgkill() function code is\nduplicated between the two of them. This patch pulls the duplication out\ninto a separate function -- do_tkill() -- and lets sys_tkill() and\nsys_tgkill() be simple wrappers around it. This should make it easier to\nmaintain in light of future changes.\n\nSigned-off-by: Vadim Lobanov \u003cvlobanov@speakeasy.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "19a4fcb531659f2f7d18b5d04cee039176e9540d", "tree": "30e0636d6163a5c0c3a4ad41c2d5f49cd858b457", "parents": [ "932aeafbe8521a9a9d790152d66020e0fef2029b" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Oct 30 15:02:17 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:19 2005 -0800" }, "message": "[PATCH] kill sigqueue-\u003elock\n\nThis lock is used in sigqueue_free(), but it is always equal to\ncurrent-\u003esighand-\u003esiglock, so we don\u0027t need to keep it in the struct\nsigqueue.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8d027de54c77d38eedc9b331c7a2a39807d34691", "tree": "cfa290c7ca6b63f33b2b4624695596f38bcda2fd", "parents": [ "47e627ce83b6df9f4bb8e4b0a4dde1c5d7a4c929" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sat Oct 29 19:37:40 2005 +0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 10:28:13 2005 -0700" }, "message": "[PATCH] fix -\u003esignal-\u003elive leak in copy_process()\n\nexit_signal() (called from copy_process\u0027s error path) should decrement\n-\u003esignal-\u003elive, otherwise forking process will miss \u0027group_dead\u0027 in\ndo_exit().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "25f407f0b668f5e4ebd5d13e1fb4306ba6427ead", "tree": "10d8661419da9e0d6be6d22ef319582d052c4a26", "parents": [ "9465bee863bc4c6cf1566c12d6f92a8133e3da5c" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Oct 21 15:03:29 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Oct 21 15:38:08 2005 -0700" }, "message": "[PATCH] Call exit_itimers from do_exit, not __exit_signal\n\nWhen I originally moved exit_itimers into __exit_signal, that was the only\nplace where we could reliably know it was the last thread in the group\ndying, without races. Since then we\u0027ve gotten the signal_struct.live\ncounter, and do_exit can reliably do group-wide cleanup work.\n\nThis patch moves the call to do_exit, where it\u0027s made without locks. This\navoids the deadlock issues that the old __exit_signal code\u0027s comment talks\nabout, and the one that Oleg found recently with process CPU timers.\n\n[ This replaces e03d13e985d48ac4885382c9e3b1510c78bd047f, which is why\n it was just reverted. ]\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "46113830a18847cff8da73005e57bc49c2f95a56", "tree": "93946fc290d9481e7055217ff497583647d1e4d4", "parents": [ "094804c5a132f04c12dd4902ee15c64362e5c1af" ], "author": { "name": "Harald Welte", "email": "laforge@gnumonks.org", "time": "Mon Oct 10 19:44:29 2005 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 10 16:16:33 2005 -0700" }, "message": "[PATCH] Fix signal sending in usbdevio on async URB completion\n\nIf a process issues an URB from userspace and (starts to) terminate\nbefore the URB comes back, we run into the issue described above. This\nis because the urb saves a pointer to \"current\" when it is posted to the\ndevice, but there\u0027s no guarantee that this pointer is still valid\nafterwards.\n\nIn fact, there are three separate issues:\n\n1) the pointer to \"current\" can become invalid, since the task could be\n completely gone when the URB completion comes back from the device.\n\n2) Even if the saved task pointer is still pointing to a valid task_struct,\n task_struct-\u003esighand could have gone meanwhile.\n\n3) Even if the process is perfectly fine, permissions may have changed,\n and we can no longer send it a signal.\n\nSo what we do instead, is to save the PID and uid\u0027s of the process, and\nintroduce a new kill_proc_info_as_uid() function.\n\nSigned-off-by: Harald Welte \u003claforge@gnumonks.org\u003e\n[ Fixed up types and added symbol exports ]\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dd0fc66fb33cd610bc1a5db8a5e232d34879b4d7", "tree": "51f96a9db96293b352e358f66032e1f4ff79fafb", "parents": [ "3b0e77bd144203a507eb191f7117d2c5004ea1de" ], "author": { "name": "Al Viro", "email": "viro@ftp.linux.org.uk", "time": "Fri Oct 07 07:46:04 2005 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 08 15:00:57 2005 -0700" }, "message": "[PATCH] gfp flags annotations - part 1\n\n - added typedef unsigned int __nocast gfp_t;\n\n - replaced __nocast uses for gfp flags with gfp_t - it gives exactly\n the same warnings as far as sparse is concerned, doesn\u0027t change\n generated code (from gcc point of view we replaced unsigned int with\n typedef) and documents what\u0027s going on far better.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "788e05a67c343fa22f2ae1d3ca264e7f15c25eaf", "tree": "4fa2f7e11cc757160ae5f492fdbe0da72d30cf26", "parents": [ "829841146878e082613a49581ae252c071057c23" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Oct 07 17:46:19 2005 +0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 08 14:53:31 2005 -0700" }, "message": "[PATCH] fix do_coredump() vs SIGSTOP race\n\nLet\u0027s suppose we have 2 threads in thread group:\n\tA - does coredump\n\tB - has pending SIGSTOP\n\nthread A\t\t\t\t\t\tthread B\n\ndo_coredump:\t\t\t\t\t\tget_signal_to_deliver:\n\n lock(-\u003esighand)\n -\u003esignal-\u003eflags \u003d SIGNAL_GROUP_EXIT\n unlock(-\u003esighand)\n\n\t\t\t\t\t\t\tlock(-\u003esighand)\n\t\t\t\t\t\t\tsignr \u003d dequeue_signal()\n\t\t\t\t\t\t\t\t-\u003esignal-\u003eflags |\u003d SIGNAL_STOP_DEQUEUED\n\t\t\t\t\t\t\t\treturn SIGSTOP;\n\n\t\t\t\t\t\t\tdo_signal_stop:\n\t\t\t\t\t\t\t unlock(-\u003esighand)\n\n coredump_wait:\n\n zap_threads:\n lock(tasklist_lock)\n send SIGKILL to B\n // signal_wake_up() does nothing\n unlock(tasklist_lock)\n\n\t\t\t\t\t\t\t lock(tasklist_lock)\n\t\t\t\t\t\t\t lock(-\u003esighand)\n\t\t\t\t\t\t\t re-check sig-\u003eflags \u0026 SIGNAL_STOP_DEQUEUED, yes\n\t\t\t\t\t\t\t set_current_state(TASK_STOPPED);\n\t\t\t\t\t\t\t finish_stop:\n\t\t\t\t\t\t\t schedule();\n\t\t\t\t\t\t\t // -\u003estate \u003d\u003d TASK_STOPPED\n\n wait_for_completion(\u0026startup_done)\n // waits for complete() from B,\n // -\u003estate \u003d\u003d TASK_UNINTERRUPTIBLE\n\nWe can\u0027t wake up \u0027B\u0027 in any way:\n\n\tSIGCONT will be ignored because handle_stop_signal() sees\n\t-\u003esignal-\u003eflags \u0026 SIGNAL_GROUP_EXIT.\n\n\tsys_kill(SIGKILL)-\u003e__group_complete_signal() will choose\n\tuninterruptible \u0027A\u0027, so it can\u0027t help.\n\n\tsys_tkill(B, SIGKILL) will be ignored by specific_send_sig_info()\n\tbecause B already has pending SIGKILL.\n\nThis scenario is not possbile if \u0027A\u0027 does do_group_exit(), because\nit sets sig-\u003eflags \u003d SIGNAL_GROUP_EXIT and delivers SIGKILL to\nsubthreads atomically, holding both tasklist_lock and sighand-\u003elock.\nThat means that do_signal_stop() will notice !SIGNAL_STOP_DEQUEUED\nafter re-locking -\u003esighand. And it is not possible to any other\nthread to re-add SIGNAL_STOP_DEQUEUED later, because dequeue_signal()\ncan only return SIGKILL.\n\nI think it is better to change do_coredump() to do sigaddset(SIGKILL)\nand signal_wake_up() under sighand-\u003elock, but this patch is much\nsimpler.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "5acbc5cb507e6c381b70093b1081854708e82b16", "tree": "504bf5b1a1079fedd424d130589a336745f803e9", "parents": [ "4a8342d233a39ee582e9f7260e12d2f5fd194a05" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Thu Sep 29 14:54:42 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Sep 29 15:20:47 2005 -0700" }, "message": "[PATCH] Fix task state testing properly in do_signal_stop()\n\nAny tests using \u003c TASK_STOPPED or the like are left over from the time\nwhen the TASK_ZOMBIE and TASK_DEAD bits were in the same word, and it\nserved to check for \"stopped or dead\". I think this one in\ndo_signal_stop is the only such case. It has been buggy ever since\nexit_state was separated, and isn\u0027t testing the exit_state value.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "188a1eafa03aaa5e5fe6f53e637e704cd2c31c7c", "tree": "33d9480c792724c10e4e6fb681fc69c477cf1ff0", "parents": [ "ede1327ea4ca8019ec6df24b3e837def091c26b8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 23 13:22:21 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 23 13:22:21 2005 -0700" }, "message": "Make sure SIGKILL gets proper respect\n\nBhavesh P. Davda \u003cbhavesh@avaya.com\u003e noticed that SIGKILL wouldn\u0027t\nproperly kill a process under just the right cicumstances: a stopped\ntask that already had another signal queued would get the SIGKILL\nqueued onto the shared queue, and there it would remain until SIGCONT.\n\nThis simplifies the signal acceptance logic, and fixes the bug in the\nprocess.\n\nLosely based on an earlier patch by Bhavesh.\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "75bcc8c5e1de78616b04ef9f317a293a7c1c163c", "tree": "fabdfd7fbc46baae5638b41648444d805e14eb3c", "parents": [ "041e0e3b1970c508dc9a95b7dd9dc86271a7d7ac" ], "author": { "name": "Nishanth Aravamudan", "email": "nacc@us.ibm.com", "time": "Sat Sep 10 00:27:24 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Sep 10 10:06:37 2005 -0700" }, "message": "[PATCH] kernel: fix-up schedule_timeout() usage\n\nUse schedule_timeout_{,un}interruptible() instead of\nset_current_state()/schedule_timeout() to reduce kernel size.\n\nSigned-off-by: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e752dd6cc66a3e6a11396928998baf390cc00420", "tree": "b24b388d80acec6527e66b07f0d308d48319c476", "parents": [ "a97c9bf33f4612e2aed6f000f6b1d268b6814f3c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Sep 06 15:17:42 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 16:57:33 2005 -0700" }, "message": "[PATCH] fix send_sigqueue() vs thread exit race\n\nposix_timer_event() first checks that the thread (SIGEV_THREAD_ID case)\ndoes not have PF_EXITING flag, then it calls send_sigqueue() which locks\ntask list. But if the thread exits in between the kernel will oops\n(-\u003esighand \u003d\u003d NULL after __exit_sighand).\n\nThis patch moves the PF_EXITING check into the send_sigqueue(), it must be\ndone atomically under tasklist_lock. When send_sigqueue() detects exiting\nthread it returns -1. In that case posix_timer_event will send the signal\nto thread group.\n\nAlso, this patch fixes task_struct use-after-free in posix_timer_event.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "bc505a478d3fffcfb269b72f64df4510305cfe81", "tree": "e8a788fb93bc18a10be134ab6218365f53d2d1dc", "parents": [ "2d237c63659c098a662b1b09d43460f04c498436" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Sep 06 15:17:32 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 16:57:31 2005 -0700" }, "message": "[PATCH] do_notify_parent_cldstop() cleanup\n\nThis patch simplifies the usage of do_notify_parent_cldstop(), it lessens\nthe source and .text size slightly, and makes the code (in my opinion) a\nbit more readable.\n\nI am sending this patch now because I\u0027m afraid Paul will touch\ndo_notify_parent_cldstop() really soon, It\u0027s better to cleanup first.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dd12f48d4e8774415b528d3991ae47c28f26e1ac", "tree": "d8083c3415d540adb7983bd23a80fb8420fa8414", "parents": [ "ade6648b3b11a5d81f6f28135193ab6d85d621db" ], "author": { "name": "Bhavesh P. Davda", "email": "bhavesh@avaya.com", "time": "Wed Aug 17 12:26:33 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Aug 17 12:52:04 2005 -0700" }, "message": "[PATCH] NPTL signal delivery deadlock fix\n\nThis bug is quite subtle and only happens in a very interesting\nsituation where a real-time threaded process is in the middle of a\ncoredump when someone whacks it with a SIGKILL. However, this deadlock\nleaves the system pretty hosed and you have to reboot to recover.\n\nNot good for real-time priority-preemption applications like our\ntelephony application, with 90+ real-time (SCHED_FIFO and SCHED_RR)\nprocesses, many of them multi-threaded, interacting with each other for\nhigh volume call processing.\n\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3e1d1d28d99dabe63c64f7f40f1ca1d646de1f73", "tree": "d1e7c1e2e8902072042aefc3a7976b271cf76021", "parents": [ "b3e112bcc19abd8e9657dca34a87316786e096f3" ], "author": { "name": "Christoph Lameter", "email": "christoph@lameter.com", "time": "Fri Jun 24 23:13:50 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 17:10:13 2005 -0700" }, "message": "[PATCH] Cleanup patch for process freezing\n\n1. Establish a simple API for process freezing defined in linux/include/sched.h:\n\n frozen(process)\t\tCheck for frozen process\n freezing(process)\t\tCheck if a process is being frozen\n freeze(process)\t\tTell a process to freeze (go to refrigerator)\n thaw_process(process)\tRestart process\n frozen_process(process)\tProcess is frozen now\n\n2. Remove all references to PF_FREEZE and PF_FROZEN from all\n kernel sources except sched.h\n\n3. Fix numerous locations where try_to_freeze is manually done by a driver\n\n4. Remove the argument that is no longer necessary from two function calls.\n\n5. Some whitespace cleanup\n\n6. Clear potential race in refrigerator (provides an open window of PF_FREEZE\n cleared before setting PF_FROZEN, recalc_sigpending does not check\n PF_FROZEN).\n\nThis patch does not address the problem of freeze_processes() violating the rule\nthat a task may only modify its own flags by setting PF_FREEZE. This is not clean\nin an SMP environment. freeze(process) is therefore not SMP safe!\n\nSigned-off-by: Christoph Lameter \u003cchristoph@lameter.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4fea2838aa00b9e59efde974dcdb455608192811", "tree": "f5de626cd00b232c8d3183bfcf3a1a669c1ff738", "parents": [ "af4d2ecbf007b7df3db7a41eedccdc05b8006d0b" ], "author": { "name": "Kirill Korotaev", "email": "dev@sw.ru", "time": "Thu Jun 23 00:09:51 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Thu Jun 23 09:45:27 2005 -0700" }, "message": "[PATCH] Software suspend and recalc sigpending bug fix\n\nThis patch fixes recalc_sigpending() to work correctly with tasks which are\nbeing freezed.\n\nThe problem is that freeze_processes() sets PF_FREEZE and TIF_SIGPENDING\nflags on tasks, but recalc_sigpending() called from e.g.\nsys_rt_sigtimedwait or any other kernel place will clear TIF_SIGPENDING due\nto no pending signals queued and the tasks won\u0027t be freezed until it\nrecieves a real signal or freezed_processes() fail due to timeout.\n\nSigned-Off-By: Kirill Korotaev \u003cdev@sw.ru\u003e\nSigned-Off-By: Alexey Kuznetsov \u003ckuznet@ms2.inr.ac.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1c3f45ab2f7f879ea482501c83899505c31f7539", "tree": "672465b3b9b3e2e26a8caf74ed64aa6885c52c13", "parents": [ "4bcff1b37e7c3aed914d1ce5b45994adc7dbf455", "e0d6d71440a3a35c6fc2dde09f8e8d4d7bd44dda" ], "author": { "name": "David Woodhouse", "email": "dwmw2@shinybook.infradead.org", "time": "Thu Jun 02 16:39:11 2005 +0100" }, "committer": { "name": "David Woodhouse", "email": "dwmw2@shinybook.infradead.org", "time": "Thu Jun 02 16:39:11 2005 +0100" }, "message": "Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git\n\n" }, { "commit": "c33880aaddbbab1ccf36f4457ed1090621f2e39a", "tree": "2bcaa297c0688c3ce997ede15bf224c39fee6e23", "parents": [ "6431e6a28e8df423e1ebcda065e9ff086198d2c6" ], "author": { "name": "Kirill Korotaev", "email": "dev@sw.ru", "time": "Tue May 24 19:29:47 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue May 24 20:08:13 2005 -0700" }, "message": "[PATCH] sigkill priority fix\n\nIf SIGKILL does not have priority, we cannot instantly kill task before it\nmakes some unexpected job. It can be critical, but we were unable to\nreproduce this easily until Heiko Carstens \u003cHeiko.Carstens@de.ibm.com\u003e\nreported this problem on LKML.\n\nSigned-Off-By: Kirill Korotaev \u003cdev@sw.ru\u003e\nSigned-Off-By: Alexey Kuznetsov \u003ckuznet@ms2.inr.ac.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" } ], "next": "c2f0c7c356dc9ae15419f00c725a2fcc58eeff58" }