)]}' { "log": [ { "commit": "a11637194adc8bf2c2022ac89314dbdd1fcd1778", "tree": "b761d38ee683a71b7140b4203aee1cd319c5ef0e", "parents": [ "636040b4eddf6152b5d0b2d574663809f898953b", "6921a575c9f26f7ea274aaea3b78967810ce5513" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 22 10:58:57 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 22 10:58:57 2012 -0700" }, "message": "Merge branch \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull perf updates from Ingo Molnar.\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n ftrace: Make all inline tags also include notrace\n perf: Use css_tryget() to avoid propping up css refcount\n perf tools: Fix synthesizing tracepoint names from the perf.data headers\n perf stat: Fix default output file\n perf tools: Fix endianity swapping for adds_features bitmask\n" }, { "commit": "2ce5682947872061148b0e5ed2212e03d0d8bc8b", "tree": "0038a1806eac265460c13c4b1f0cfa91822978e2", "parents": [ "c4c0e9e544a0eb640798cc66e68f394fa4a561bf", "8e3bbf42c6d73881956863cc3305456afe2bc4ea" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 20 22:11:04 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 20 22:11:04 2012 -0700" }, "message": "Merge branch \u0027for-3.5-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup\n\nPull two cgroup fixes from Tejun Heo:\n \"This containes two patches fixing a refcnt race bug during css_put().\n Decrementing and checking the value weren\u0027t atomic and two tasks could\n think that they both pushed the counter to zero.\"\n\n* \u0027for-3.5-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:\n cgroups: Account for CSS_DEACT_BIAS in __css_put\n cgroup: make sure that decisions in __css_put are atomic\n" }, { "commit": "fe80352460971de12519bf46ed5ec4235350bcd7", "tree": "5ecaa3409b76cb0829f905e5c1ceadf20a29829c", "parents": [ "f8fc0c9a5f7f4f5a3d2e7dd58147e30053cc5dd8", "96c9f05b39a5a3239cf0588cc86a1b95cac652c4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 20 15:14:28 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 20 15:14:28 2012 -0700" }, "message": "Merge tag \u0027driver-core-3.5-rc4\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core\n\nPull driver core and printk fixes from Greg Kroah-Hartman:\n \"Here are some fixes for 3.5-rc4 that resolve the kmsg problems that\n people have reported showing up after the printk and kmsg changes went\n into 3.5-rc1. There are also a smattering of other tiny fixes for the\n extcon and hyper-v drivers that people have reported.\n\n Signed-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\"\n\n* tag \u0027driver-core-3.5-rc4\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:\n extcon: max8997: Add missing kfree for info-\u003eedev in max8997_muic_remove()\n extcon: Set platform drvdata in gpio_extcon_probe() and fix irq leak\n extcon: Fix wrong index in max8997_extcon_cable[]\n kmsg - kmsg_dump() fix CONFIG_PRINTK\u003dn compilation\n printk: return -EINVAL if the message len is bigger than the buf size\n printk: use mutex lock to stop syslog_seq from going wild\n kmsg - kmsg_dump() use iterator to receive log buffer content\n vme: change maintainer e-mail address\n Extcon: Don\u0027t try to create duplicate link names\n driver core: fixup reversed deferred probe order\n printk: Fix alignment of buf causing crash on ARM EABI\n Tools: hv: verify origin of netlink connector message\n" }, { "commit": "5702c5eeab959e86ee2d9b4fe7f2d87e65b25d46", "tree": "43e67dfe6d036691e9594453dfda1288e1b298c2", "parents": [ "50d75f8daead8a1f850c40a3b6c6575ab19b48cf" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Wed Jun 20 12:53:04 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 20 14:39:36 2012 -0700" }, "message": "c/r: prctl: Move PR_GET_TID_ADDRESS to a proper place\n\nDuring merging of PR_GET_TID_ADDRESS patch the code has been misplaced (it\nhappened to appear under PR_MCE_KILL) in result noone can use this option.\n\nFix it by moving code snippet to a proper place.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nAcked-by: Kees Cook \u003ckeescook@chromium.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Andrey Vagin \u003cavagin@openvz.org\u003e\nCc: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "50d75f8daead8a1f850c40a3b6c6575ab19b48cf", "tree": "1917eec9deadded31869372207772d9a3d3ca11a", "parents": [ "6347e90091041e34bea625370794c92f4ce71228" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed Jun 20 12:53:04 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 20 14:39:36 2012 -0700" }, "message": "pidns: find_new_reaper() can no longer switch to init_pid_ns.child_reaper\n\nfind_new_reaper() changes pid_ns-\u003echild_reaper, see add0d4df (\"pid_ns:\nzap_pid_ns_processes: fix the -\u003echild_reaper changing\").\n\nThe original reason has gone away after the previous patch, -\u003echildren\nlist must be empty after zap_pid_ns_processes().\n\nHowever now we can not switch to init_pid_ns.child_reaper.\n__unhash_process() relies on the \"-\u003echild_reaper \u003d\u003d parent\" check, but\nthis check does not work if the last exiting task is also the child\nreaper.\n\nAs Eric sugested, we can change __unhash_process() to use the parent\u0027s\npid_ns and remove this code.\n\nAlso, with this change we can move detach_pid(PIDTYPE_PID) back, where it\nwas before the previous fix.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Louis Rilling \u003clouis.rilling@kerlabs.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nTested-by: Andrew Wagin \u003cavagin@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6347e90091041e34bea625370794c92f4ce71228", "tree": "20614d4eedd2993248be3c3562177c7e00f24b68", "parents": [ "f39cdaebb89dc3e6dd4f3e75b6d4e87ef12190af" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Jun 20 12:53:03 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 20 14:39:36 2012 -0700" }, "message": "pidns: guarantee that the pidns init will be the last pidns process reaped\n\nToday we have a twofold bug. Sometimes release_task on pid \u003d\u003d 1 in a pid\nnamespace can run before other processes in a pid namespace have had\nrelease task called. With the result that pid_ns_release_proc can be\ncalled before the last proc_flus_task() is done using upid-\u003ens-\u003eproc_mnt,\nresulting in the use of a stale pointer. This same set of circumstances\ncan lead to waitpid(...) returning for a processes started with\nclone(CLONE_NEWPID) before the every process in the pid namespace has\nactually exited.\n\nTo fix this modify zap_pid_ns_processess wait until all other processes in\nthe pid namespace have exited, even EXIT_DEAD zombies.\n\nThe delay_group_leader and related tests ensure that the thread gruop\nleader will be the last thread of a process group to be reaped, or to\nbecome EXIT_DEAD and self reap. With the change to zap_pid_ns_processes\nwe get the guarantee that pid \u003d\u003d 1 in a pid namespace will be the last\ntask that release_task is called on.\n\nWith pid \u003d\u003d 1 being the last task to pass through release_task\npid_ns_release_proc can no longer be called too early nor can wait return\nbefore all of the EXIT_DEAD tasks in a pid namespace have exited.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Louis Rilling \u003clouis.rilling@kerlabs.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nTested-by: Andrew Wagin \u003cavagin@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4fe7efdbdfb1c7e7a7f31decfd831c0f31d37091", "tree": "5d8fdf353ba3791ef10031ade2d93aa87aa179d3", "parents": [ "e0897d75f0b22e8c3a7287a48548c5686ef73447" ], "author": { "name": "Konstantin Khlebnikov", "email": "khlebnikov@openvz.org", "time": "Wed Jun 20 12:53:01 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 20 14:39:36 2012 -0700" }, "message": "mm: correctly synchronize rss-counters at exit/exec\n\ndo_exit() and exec_mmap() call sync_mm_rss() before mm_release() does\nput_user(clear_child_tid) which can update task-\u003erss_stat and thus make\nmm-\u003erss_stat inconsistent. This triggers the \"BUG:\" printk in check_mm().\n\nLet\u0027s fix this bug in the safest way, and optimize/cleanup this later.\n\nReported-by: Markus Trippelsdorf \u003cmarkus@trippelsdorf.de\u003e\nSigned-off-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nCc: \u003cstable@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8e3bbf42c6d73881956863cc3305456afe2bc4ea", "tree": "bb3369e7444a2efe8e890ddd341e576e3cba18c1", "parents": [ "967db0ea65b0bf8507a7643ac8f296c4f2c0a834" ], "author": { "name": "Salman Qazi", "email": "sqazi@google.com", "time": "Thu Jun 14 14:55:30 2012 -0700" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Jun 18 15:38:02 2012 -0700" }, "message": "cgroups: Account for CSS_DEACT_BIAS in __css_put\n\nWhen we fixed the race between atomic_dec and css_refcnt, we missed\nthe fact that css_refcnt internally subtracts CSS_DEACT_BIAS to get\nthe actual reference count. This can potentially cause a refcount leak\nif __css_put races with cgroup_clear_css_refs.\n\nSigned-off-by: Salman Qazi \u003csqazi@google.com\u003e\nAcked-by: Li Zefan \u003clizefan@huawei.com\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "9c5da09d266ca9b32eb16cf940f8161d949c2fe5", "tree": "d5a8cc3e83ca92431fbb1235b068c9deb2c03c41", "parents": [ "8ed9eac4769407a8f0b93e381a3bc3ae81fa014b" ], "author": { "name": "Salman Qazi", "email": "sqazi@google.com", "time": "Thu Jun 14 15:31:09 2012 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Mon Jun 18 11:45:57 2012 +0200" }, "message": "perf: Use css_tryget() to avoid propping up css refcount\n\nAn rmdir pushes css\u0027s ref count to zero. However, if the associated\ndirectory is open at the time, the dentry ref count is non-zero. If\nthe fd for this directory is then passed into perf_event_open, it\ndoes a css_get(). This bounces the ref count back up from zero. This\nis a problem by itself. But what makes it turn into a crash is the\nfact that we end up doing an extra dput, since we perform a dput\nwhen css_put sees the ref count go down to zero.\n\ncss_tryget() does not fall into that trap. So, we use that instead.\n\nReproduction test-case for the bug:\n\n #include \u003cunistd.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/stat.h\u003e\n #include \u003cfcntl.h\u003e\n #include \u003clinux/unistd.h\u003e\n #include \u003clinux/perf_event.h\u003e\n #include \u003cstring.h\u003e\n #include \u003cerrno.h\u003e\n #include \u003cstdio.h\u003e\n\n #define PERF_FLAG_PID_CGROUP (1U \u003c\u003c 2)\n\n int perf_event_open(struct perf_event_attr *hw_event_uptr,\n pid_t pid, int cpu, int group_fd, unsigned long flags) {\n return syscall(__NR_perf_event_open,hw_event_uptr, pid, cpu,\n group_fd, flags);\n }\n\n /*\n * Directly poke at the perf_event bug, since it\u0027s proving hard to repro\n * depending on where in the kernel tree. what moved?\n */\n int main(int argc, char **argv)\n {\n int fd;\n struct perf_event_attr attr;\n memset(\u0026attr, 0, sizeof(attr));\n attr.exclude_kernel \u003d 1;\n attr.size \u003d sizeof(attr);\n mkdir(\"/dev/cgroup/perf_event/blah\", 0777);\n fd \u003d open(\"/dev/cgroup/perf_event/blah\", O_RDONLY);\n perror(\"open\");\n rmdir(\"/dev/cgroup/perf_event/blah\");\n sleep(2);\n perf_event_open(\u0026attr, fd, 0, -1, PERF_FLAG_PID_CGROUP);\n perror(\"perf_event_open\");\n close(fd);\n return 0;\n }\n\nSigned-off-by: Salman Qazi \u003csqazi@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Tejun Heo \u003ctj@kernel.org\u003e\nLink: http://lkml.kernel.org/r/20120614223108.1025.2503.stgit@dungbeetle.mtv.corp.google.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "b56a39ac263e5b8cafedd551a49c2105e68b98c2", "tree": "0dbbe8929783ab347b3d40d4ed79ea87d5b3966d", "parents": [ "4a77a5a06ec66ed05199b301e7c25f42f979afdc" ], "author": { "name": "Yuanhan Liu", "email": "yuanhan.liu@linux.intel.com", "time": "Sat Jun 16 12:40:55 2012 +0800" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Sat Jun 16 08:36:03 2012 -0700" }, "message": "printk: return -EINVAL if the message len is bigger than the buf size\n\nJust like what devkmsg_read() does, return -EINVAL if the message len is\nbigger than the buf size, or it will trigger a segfault error.\n\nAcked-by: Kay Sievers \u003ckay@vrfy.org\u003e\nAcked-by: Fengguang Wu \u003cwfg@linux.intel.com\u003e\nSigned-off-by: Yuanhan Liu \u003cyuanhan.liu@linux.intel.com\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "4a77a5a06ec66ed05199b301e7c25f42f979afdc", "tree": "4b1897ff18501dae3a62c3f1618a761829eb64d7", "parents": [ "e2ae715d66bf4becfb85eb84b7150e23cf27df30" ], "author": { "name": "Yuanhan Liu", "email": "yuanhan.liu@linux.intel.com", "time": "Sat Jun 16 21:21:51 2012 +0800" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Sat Jun 16 08:36:02 2012 -0700" }, "message": "printk: use mutex lock to stop syslog_seq from going wild\n\nAlthough syslog_seq and log_next_seq stuff are protected by logbuf_lock\nspin log, it\u0027s not enough. Say we have two processes A and B, and let\nsyslog_seq \u003d N, while log_next_seq \u003d N + 1, and the two processes both\ncome to syslog_print at almost the same time. And No matter which\nprocess get the spin lock first, it will increase syslog_seq by one,\nthen release spin lock; thus later, another process increase syslog_seq\nby one again. In this case, syslog_seq is bigger than syslog_next_seq.\nAnd latter, it would make:\n wait_event_interruptiable(log_wait, syslog !\u003d log_next_seq)\ndon\u0027t wait any more even there is no new write comes. Thus it introduce\na infinite loop reading.\n\nI can easily see this kind of issue by the following steps:\n # cat /proc/kmsg # at meantime, I don\u0027t kill rsyslog\n # So they are the two processes.\n # xinit # I added drm.debug\u003d6 in the kernel parameter line,\n # so that it will produce lots of message and let that\n # issue happen\n\nIt\u0027s 100% reproducable on my side. And my disk will be filled up by\n/var/log/messages in a quite short time.\n\nSo, introduce a mutex_lock to stop syslog_seq from going wild just like\nwhat devkmsg_read() does. It does fix this issue as expected.\n\nv2: use mutex_lock_interruptiable() instead (comments from Kay)\n\nSigned-off-by: Yuanhan Liu \u003cyuanhan.liu@linux.intel.com\u003e\nReviewed-by: Fengguang Wu \u003cfengguang.wu@intel.com\u003e\nAcked-By: Kay Sievers \u003ckay@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "ed21a66c1862499bb21c8e48a450e13fb830f46b", "tree": "80bead4a058f2e799884c1220d83c7e1f29b43fb", "parents": [ "a95f9b6e092ed862278e08266207c7ab231076b4", "a70270468234749741c5893ae78e5bb524771402" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 15 16:58:10 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 15 16:58:10 2012 -0700" }, "message": "Merge branch \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull perf fixes from Ingo Molnar.\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n watchdog: Quiet down the boot messages\n perf/x86: Fix broken LBR fixup code\n tracing: Have tracing_off() actually turn tracing off\n" }, { "commit": "a95f9b6e092ed862278e08266207c7ab231076b4", "tree": "c5daf86ce89b3033c051dfc7b2955981d6add16d", "parents": [ "a41b0e71563166762ee9d4905f3aa518a9348ed4", "4a1e001d2bb75c47a9cdbbfb66ae51daff1ddcba" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 15 16:52:35 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 15 16:52:35 2012 -0700" }, "message": "Merge branch \u0027core-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull core updates (RCU and locking) from Ingo Molnar:\n \"Most of the diffstat comes from the RCU slow boot regression fixes,\n but there\u0027s also a debuggability improvements/fixes.\"\n\n* \u0027core-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n memblock: Document memblock_is_region_{memory,reserved}()\n rcu: Precompute RCU_FAST_NO_HZ timer offsets\n rcu: Move RCU_FAST_NO_HZ per-CPU variables to rcu_dynticks structure\n rcu: Update RCU_FAST_NO_HZ tracing for lazy callbacks\n rcu: RCU_FAST_NO_HZ detection of callback adoption\n spinlock: Indicate that a lockup is only suspected\n kdump: Execute kmsg_dump(KMSG_DUMP_PANIC) after smp_send_stop()\n panic: Make panic_on_oops configurable\n" }, { "commit": "e2ae715d66bf4becfb85eb84b7150e23cf27df30", "tree": "206f08bc1f5138d1416c040f78c5b527ca07536d", "parents": [ "1bd289d1e8e29c09be0e783a53f16a1dc80684be" ], "author": { "name": "Kay Sievers", "email": "kay@vrfy.org", "time": "Fri Jun 15 14:07:51 2012 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Fri Jun 15 14:53:59 2012 -0700" }, "message": "kmsg - kmsg_dump() use iterator to receive log buffer content\n\nProvide an iterator to receive the log buffer content, and convert all\nkmsg_dump() users to it.\n\nThe structured data in the kmsg buffer now contains binary data, which\nshould no longer be copied verbatim to the kmsg_dump() users.\n\nThe iterator should provide reliable access to the buffer data, and also\nsupports proper log line-aware chunking of data while iterating.\n\nSigned-off-by: Kay Sievers \u003ckay@vrfy.org\u003e\nTested-by: Tony Luck \u003ctony.luck@intel.com\u003e\nReported-by: Anton Vorontsov \u003canton.vorontsov@linaro.org\u003e\nTested-by: Anton Vorontsov \u003canton.vorontsov@linaro.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "a70270468234749741c5893ae78e5bb524771402", "tree": "aed83d3dc676cc486d43ad30926ac909872a02d8", "parents": [ "25f42985825dd93f0593efe454e54c2aa13f7830" ], "author": { "name": "Don Zickus", "email": "dzickus@redhat.com", "time": "Wed Jun 13 09:35:48 2012 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Thu Jun 14 12:20:50 2012 +0200" }, "message": "watchdog: Quiet down the boot messages\n\nA bunch of bugzillas have complained how noisy the nmi_watchdog\nis during boot-up especially with its expected failure cases\n(like virt and bios resource contention).\n\nThis is my attempt to quiet them down and keep it less confusing\nfor the end user. What I did is print the message for cpu0 and\nsave it for future comparisons. If future cpus have an\nidentical message as cpu0, then don\u0027t print the redundant info.\nHowever, if a future cpu has a different message, happily print\nthat loudly.\n\nBefore the change, you would see something like:\n\n ..TIMER: vector\u003d0x30 apic1\u003d0 pin1\u003d2 apic2\u003d-1 pin2\u003d-1\n CPU0: Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz stepping 0a\n Performance Events: PEBS fmt0+, Core2 events, Intel PMU driver.\n ... version: 2\n ... bit width: 40\n ... generic registers: 2\n ... value mask: 000000ffffffffff\n ... max period: 000000007fffffff\n ... fixed-purpose events: 3\n ... event mask: 0000000700000003\n NMI watchdog enabled, takes one hw-pmu counter.\n Booting Node 0, Processors #1\n NMI watchdog enabled, takes one hw-pmu counter.\n #2\n NMI watchdog enabled, takes one hw-pmu counter.\n #3 Ok.\n NMI watchdog enabled, takes one hw-pmu counter.\n Brought up 4 CPUs\n Total of 4 processors activated (22607.24 BogoMIPS).\n\nAfter the change, it is simplified to:\n\n ..TIMER: vector\u003d0x30 apic1\u003d0 pin1\u003d2 apic2\u003d-1 pin2\u003d-1\n CPU0: Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz stepping 0a\n Performance Events: PEBS fmt0+, Core2 events, Intel PMU driver.\n ... version: 2\n ... bit width: 40\n ... generic registers: 2\n ... value mask: 000000ffffffffff\n ... max period: 000000007fffffff\n ... fixed-purpose events: 3\n ... event mask: 0000000700000003\n NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.\n Booting Node 0, Processors #1 #2 #3 Ok.\n Brought up 4 CPUs\n\nV2: little changes based on Joe Perches\u0027 feedback\nV3: printk cleanup based on Ingo\u0027s feedback; checkpatch fix\nV4: keep printk as one long line\nV5: Ingo fix ups\n\nReported-and-tested-by: Nathan Zimmer \u003cnzimmer@sgi.com\u003e\nSigned-off-by: Don Zickus \u003cdzickus@redhat.com\u003e\nCc: nzimmer@sgi.com\nCc: joe@perches.com\nLink: http://lkml.kernel.org/r/1339594548-17227-1-git-send-email-dzickus@redhat.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "6ebb017de9d59a18c3ff9648270e8f6abaa93438", "tree": "771410dbbeec9cba3629b27336b2eb4af30b58b1", "parents": [ "bcc2c9c3fff859e0eb019fe6fec26f9b8eba795c" ], "author": { "name": "Andrew Lunn", "email": "andrew@lunn.ch", "time": "Tue Jun 05 08:52:34 2012 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@linuxfoundation.org", "time": "Tue Jun 12 16:20:17 2012 -0700" }, "message": "printk: Fix alignment of buf causing crash on ARM EABI\n\nCommit 7ff9554bb578ba02166071d2d487b7fc7d860d62, printk: convert\nbyte-buffer to variable-length record buffer, causes systems using\nEABI to crash very early in the boot cycle. The first entry in struct\nlog is a u64, which for EABI must be 8 byte aligned.\n\nMake use of __alignof__() so the compiler to decide the alignment, but\nallow it to be overridden using CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS,\nfor systems which can perform unaligned access and want to save\na few bytes of space.\n\nTested on Orion5x and Kirkwood.\n\nSigned-off-by: Andrew Lunn \u003candrew@lunn.ch\u003e\nTested-by: Stephen Warren \u003cswarren@wwwdotorg.org\u003e\nAcked-by: Stephen Warren \u003cswarren@wwwdotorg.org\u003e\nAcked-by: Kay Sievers \u003ckay@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\n" }, { "commit": "4a1e001d2bb75c47a9cdbbfb66ae51daff1ddcba", "tree": "6d6e968a087b7a26b3a04af1ef94149607b64358", "parents": [ "eab309494ae2b9e15f85520f00de3893162c2e43", "aa9b16306e3243229580ff889cc59fd66bf77973" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Mon Jun 11 10:30:23 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Mon Jun 11 10:30:23 2012 +0200" }, "message": "Merge branch \u0027rcu/urgent\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/urgent\n\nMerge RCU fixes from Paul E. McKenney:\n\n \" This series has four patches, the major point of which is to eliminate\n some slowdowns (including boot-time slowdowns) resulting from some\n RCU_FAST_NO_HZ changes. The issue with the changes is that posting timers\n from the idle loop has no effect if the CPU has entered dyntick-idle\n mode because the CPU has already computed its wakeup time, and posting\n a timer does not cause it to be recomputed. The short-term fix is for\n RCU to precompute the timeout value so that the CPU\u0027s calculation is\n correct. \"\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "72494504498ff5ac2f086a83473d4dd1ca490bd3", "tree": "7f1ceab43de3580235f1a56f2ae865901c09e4d7", "parents": [ "cd96891d48a945ca2011fbeceda73813d6286195", "a841f8cef4bb124f0f5563314d0beaf2e1249d72" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 14:59:29 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 14:59:29 2012 -0700" }, "message": "Merge branch \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler fixes from Ingo Molnar.\n\n* \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n sched: Fix the relax_domain_level boot parameter\n sched: Validate assumptions in sched_init_numa()\n sched: Always initialize cpu-power\n sched: Fix domain iteration\n sched/rt: Fix lockdep annotation within find_lock_lowest_rq()\n sched/numa: Load balance between remote nodes\n sched/x86: Calculate booted cores after construction of sibling_mask\n" }, { "commit": "cd96891d48a945ca2011fbeceda73813d6286195", "tree": "c859442b2364adfa4eec29f516ffbe9c316a81bf", "parents": [ "8f53369b753f5f4c7684c2eb0b592152abb1dd00" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Fri Jun 08 13:18:33 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 14:59:10 2012 -0700" }, "message": "sched/fair: fix lots of kernel-doc warnings\n\nFix lots of new kernel-doc warnings in kernel/sched/fair.c:\n\n Warning(kernel/sched/fair.c:3625): No description found for parameter \u0027env\u0027\n Warning(kernel/sched/fair.c:3625): Excess function parameter \u0027sd\u0027 description in \u0027update_sg_lb_stats\u0027\n Warning(kernel/sched/fair.c:3735): No description found for parameter \u0027env\u0027\n Warning(kernel/sched/fair.c:3735): Excess function parameter \u0027sd\u0027 description in \u0027update_sd_pick_busiest\u0027\n Warning(kernel/sched/fair.c:3735): Excess function parameter \u0027this_cpu\u0027 description in \u0027update_sd_pick_busiest\u0027\n .. more warnings\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "106544d81d88069c2df66ebdee42a4ba8fcd25e9", "tree": "9a6233100699c28fafde9eaa1751de7ddc173f58", "parents": [ "03d8f5408235bfd2781142458e0c0671530e74e7", "db0dc75d6403b6663c0eab4c6ccb672eb9b2ed72" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 09:14:46 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 09:14:46 2012 -0700" }, "message": "Merge branch \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull perf fixes from Ingo Molnar:\n \"A bit larger than what I\u0027d wish for - half of it is due to hw driver\n updates to Intel Ivy-Bridge which info got recently released,\n cycles:pp should work there now too, amongst other things. (but we\n are generally making exceptions for hardware enablement of this type.)\n\n There are also callchain fixes in it - responding to mostly\n theoretical (but valid) concerns. The tooling side sports perf.data\n endianness/portability fixes which did not make it for the merge\n window - and various other fixes as well.\"\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)\n perf/x86: Check user address explicitly in copy_from_user_nmi()\n perf/x86: Check if user fp is valid\n perf: Limit callchains to 127\n perf/x86: Allow multiple stacks\n perf/x86: Update SNB PEBS constraints\n perf/x86: Enable/Add IvyBridge hardware support\n perf/x86: Implement cycles:p for SNB/IVB\n perf/x86: Fix Intel shared extra MSR allocation\n x86/decoder: Fix bsr/bsf/jmpe decoding with operand-size prefix\n perf: Remove duplicate invocation on perf_event_for_each\n perf uprobes: Remove unnecessary check before strlist__delete\n perf symbols: Check for valid dso before creating map\n perf evsel: Fix 32 bit values endianity swap for sample_id_all header\n perf session: Handle endianity swap on sample_id_all header data\n perf symbols: Handle different endians properly during symbol load\n perf evlist: Pass third argument to ioctl explicitly\n perf tools: Update ioctl documentation for PERF_IOC_FLAG_GROUP\n perf tools: Make --version show kernel version instead of pull req tag\n perf tools: Check if callchain is corrupted\n perf callchain: Make callchain cursors TLS\n ...\n" }, { "commit": "b1e25f41094dfe0b9653c926d3c02a35c2eb249c", "tree": "6ccbd499bd62f8ac46ce4335803c6ab4fad57ae4", "parents": [ "857505fae884fae32e700d4b019b5f652ebf0d3b", "fad0c66c4bb836d57a5f125ecd38bed653ca863a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 09:11:33 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 09:11:33 2012 -0700" }, "message": "Merge branch \u0027timers-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull leap second timer fix from Thomas Gleixner.\n\n* \u0027timers-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n timekeeping: Fix CLOCK_MONOTONIC inconsistency during leapsecond\n" }, { "commit": "9ee6ddc9dada9cc4b2201631bc74fbf203183a10", "tree": "5ab664dc8c98387fbaa13e549af0f1b8a5f1a1fb", "parents": [ "db0dc75d6403b6663c0eab4c6ccb672eb9b2ed72", "f2bf1f6f5f89d031245067512449fc889b2f4bb2" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Fri Jun 08 12:23:22 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Fri Jun 08 12:23:22 2012 +0200" }, "message": "Merge branch \u0027tip/perf/urgent\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent\n\nPull brown paper bag fix from Steve Rostedt.\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "48d212a2eecaca2e1875925837ad27b2f43f48a3", "tree": "fbd83c7b15856971f6d7297e1d23dc862ba2989c", "parents": [ "46edaedaf3842164281d0f86c41bc152f4b4d32e" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 17:54:07 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 17:54:07 2012 -0700" }, "message": "Revert \"mm: correctly synchronize rss-counters at exit/exec\"\n\nThis reverts commit 40af1bbdca47e5c8a2044039bb78ca8fd8b20f94.\n\nIt\u0027s horribly and utterly broken for at least the following reasons:\n\n - calling sync_mm_rss() from mmput() is fundamentally wrong, because\n there\u0027s absolutely no reason to believe that the task that does the\n mmput() always does it on its own VM. Example: fork, ptrace, /proc -\n you name it.\n\n - calling it *after* having done mmdrop() on it is doubly insane, since\n the mm struct may well be gone now.\n\n - testing mm against NULL before you call it is insane too, since a\nNULL mm there would have caused oopses long before.\n\n.. and those are just the three bugs I found before I decided to give up\nlooking for me and revert it asap. I should have caught it before I\neven took it, but I trusted Andrew too much.\n\nCc: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nCc: Markus Trippelsdorf \u003cmarkus@trippelsdorf.de\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "40af1bbdca47e5c8a2044039bb78ca8fd8b20f94", "tree": "70b5a21579f8b0137c09e54d523246d84be93430", "parents": [ "39caa0916ef27cf1da5026eb708a2b8413156f75" ], "author": { "name": "Konstantin Khlebnikov", "email": "khlebnikov@openvz.org", "time": "Thu Jun 07 14:21:14 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 14:43:55 2012 -0700" }, "message": "mm: correctly synchronize rss-counters at exit/exec\n\nmm-\u003erss_stat counters have per-task delta: task-\u003erss_stat. Before\nchanging task-\u003emm pointer the kernel must flush this delta with\nsync_mm_rss().\n\ndo_exit() already calls sync_mm_rss() to flush the rss-counters before\ncommitting the rss statistics into task-\u003esignal-\u003emaxrss, taskstats,\naudit and other stuff. Unfortunately the kernel does this before\ncalling mm_release(), which can call put_user() for processing\ntask-\u003eclear_child_tid. So at this point we can trigger page-faults and\ntask-\u003erss_stat becomes non-zero again. As a result mm-\u003erss_stat becomes\ninconsistent and check_mm() will print something like this:\n\n| BUG: Bad rss-counter state mm:ffff88020813c380 idx:1 val:-1\n| BUG: Bad rss-counter state mm:ffff88020813c380 idx:2 val:1\n\nThis patch moves sync_mm_rss() into mm_release(), and moves mm_release()\nout of do_exit() and calls it earlier. After mm_release() there should\nbe no pagefaults.\n\n[akpm@linux-foundation.org: tweak comment]\nSigned-off-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nReported-by: Markus Trippelsdorf \u003cmarkus@trippelsdorf.de\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: \u003cstable@vger.kernel.org\u003e\t\t[3.4.x]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "736f24d5e59d699c6e300c5da7e3bb882eddda67", "tree": "9f703433c67763623bacb6ec1aab5a69d33903ac", "parents": [ "300f786b2683f8bb1ec0afb6e1851183a479c86d" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@gmail.com", "time": "Thu Jun 07 14:21:12 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 14:43:55 2012 -0700" }, "message": "c/r: prctl: drop VMA flags test on PR_SET_MM_ stack data assignment\n\nIn commit b76437579d13 (\"procfs: mark thread stack correctly in\nproc/\u003cpid\u003e/maps\") the stack allocated via clone() is marked in\n/proc/\u003cpid\u003e/maps as [stack:%d] thus it might be out of the former\nmm-\u003estart_stack/end_stack values (and even has some custom VMA flags\nset).\n\nSo to be able to restore mm-\u003estart_stack/end_stack drop vma flags test,\nbut still require the underlying VMA to exist.\n\nAs always note this feature is under CONFIG_CHECKPOINT_RESTORE and\nrequires CAP_SYS_RESOURCE to be granted.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Kees Cook \u003ckeescook@chromium.org\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "300f786b2683f8bb1ec0afb6e1851183a479c86d", "tree": "156c63abe6caaf885e439af30b7d883a33ba501d", "parents": [ "1ad75b9e16280ca4e2501a629a225319cf2eef2e" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Thu Jun 07 14:21:12 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 14:43:55 2012 -0700" }, "message": "c/r: prctl: add ability to get clear_tid_address\n\nZero is written at clear_tid_address when the process exits. This\nfunctionality is used by pthread_join().\n\nWe already have sys_set_tid_address() to change this address for the\ncurrent task but there is no way to obtain it from user space.\n\nWithout the ability to find this address and dump it we can\u0027t restore\npthread\u0027ed apps which call pthread_join() once they have been restored.\n\nThis patch introduces the PR_GET_TID_ADDRESS prctl option which allows\nthe current process to obtain own clear_tid_address.\n\nThis feature is available iif CONFIG_CHECKPOINT_RESTORE is set.\n\n[akpm@linux-foundation.org: fix prctl numbering]\nSigned-off-by: Andrew Vagin \u003cavagin@openvz.org\u003e\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Pedro Alves \u003cpalves@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Kees Cook \u003ckeescook@chromium.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1ad75b9e16280ca4e2501a629a225319cf2eef2e", "tree": "360b86785011959e68a4d87cb32bd92120370990", "parents": [ "bafb282df29c1524b1617019adebd6d0c3eb7a47" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Thu Jun 07 14:21:11 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 14:43:55 2012 -0700" }, "message": "c/r: prctl: add minimal address test to PR_SET_MM\n\nMake sure the address being set is greater than mmap_min_addr (as\nsuggested by Kees Cook).\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nAcked-by: Kees Cook \u003ckeescook@chromium.org\u003e\nCc: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bafb282df29c1524b1617019adebd6d0c3eb7a47", "tree": "f0b9efa850b4b298ce484eead5c8d9de87dde3e9", "parents": [ "6305902c2f871fd6db60af367bd7120fa977fa74" ], "author": { "name": "Konstantin Khlebnikov", "email": "khlebnikov@openvz.org", "time": "Thu Jun 07 14:21:11 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 14:43:55 2012 -0700" }, "message": "c/r: prctl: update prctl_set_mm_exe_file() after mm-\u003enum_exe_file_vmas removal\n\nA fix for commit b32dfe377102 (\"c/r: prctl: add ability to set new\nmm_struct::exe_file\").\n\nAfter removing mm-\u003enum_exe_file_vmas kernel keeps mm-\u003eexe_file until\nfinal mmput(), it never becomes NULL while task is alive.\n\nWe can check for other mapped files in mm instead of checking\nmm-\u003enum_exe_file_vmas, and mark mm with flag MMF_EXE_FILE_CHANGED in\norder to forbid second changing of mm-\u003eexe_file.\n\nSigned-off-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nReviewed-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nCc: Kees Cook \u003ckeescook@chromium.org\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "aa9b16306e3243229580ff889cc59fd66bf77973", "tree": "f01812ee99804cd7d7533a1d3cba1e9d439e6f63", "parents": [ "5955f7eecd77d6b440db278b266cfecdb72ecd00" ], "author": { "name": "Paul E. McKenney", "email": "paul.mckenney@linaro.org", "time": "Thu May 10 16:41:44 2012 -0700" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Wed Jun 06 20:43:28 2012 -0700" }, "message": "rcu: Precompute RCU_FAST_NO_HZ timer offsets\n\nWhen a CPU is entering dyntick-idle mode, tick_nohz_stop_sched_tick()\ncalls rcu_needs_cpu() see if RCU needs that CPU, and, if not, computes the\nnext wakeup time based on the timer wheels. Only later, when actually\nentering the idle loop, rcu_prepare_for_idle() will be invoked. In some\ncases, rcu_prepare_for_idle() will post timers to wake the CPU back up.\nBut all for naught: The next wakeup time for the CPU has already been\ncomputed, and posting a timer afterwards does not force that wakeup\ntime to be recomputed. This means that rcu_prepare_for_idle()\u0027s have\nno effect.\n\nThis is not a problem on a busy system because something else will wake\nup the CPU soon enough. However, on lightly loaded systems, the CPU\nmight stay asleep for a considerable length of time. If that CPU has\na callback that the rest of the system is waiting on, the system might\nrun very slowly or (in theory) even hang.\n\nThis commit avoids this problem by having rcu_needs_cpu() give\ntick_nohz_stop_sched_tick() an estimate of when RCU will need the CPU\nto wake back up, which tick_nohz_stop_sched_tick() takes into account\nwhen programming the CPU\u0027s wakeup time. An alternative approach is\nfor rcu_prepare_for_idle() to use hrtimers instead of normal timers,\nbut timers are much more efficient than are hrtimers for frequently\nand repeatedly posting and cancelling a given timer, which is exactly\nwhat RCU_FAST_NO_HZ does.\n\nReported-by: Pascal Chapperon \u003cpascal.chapperon@wanadoo.fr\u003e\nReported-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Paul E. McKenney \u003cpaul.mckenney@linaro.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nTested-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nTested-by: Pascal Chapperon \u003cpascal.chapperon@wanadoo.fr\u003e\n" }, { "commit": "5955f7eecd77d6b440db278b266cfecdb72ecd00", "tree": "a69a23707da5595be22fa09738be572a4ef69b4c", "parents": [ "fd4b352687fd8604d49c190c4c9ea9e369fd42d5" ], "author": { "name": "Paul E. McKenney", "email": "paul.mckenney@linaro.org", "time": "Wed May 09 12:07:05 2012 -0700" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Wed Jun 06 20:43:28 2012 -0700" }, "message": "rcu: Move RCU_FAST_NO_HZ per-CPU variables to rcu_dynticks structure\n\nThe RCU_FAST_NO_HZ code relies on a number of per-CPU variables.\nThis works, but is hidden from someone scanning the data structures\nin rcutree.h. This commit therefore converts these per-CPU variables\nto fields in the per-CPU rcu_dynticks structures.\n\nSuggested-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaul.mckenney@linaro.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nTested-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nTested-by: Pascal Chapperon \u003cpascal.chapperon@wanadoo.fr\u003e\n" }, { "commit": "fd4b352687fd8604d49c190c4c9ea9e369fd42d5", "tree": "1e20de9090f7d74eef642ac263dd71da0b494d7d", "parents": [ "8f5af6f1f2d09fe5eac86a5dc1731a5917c1503a" ], "author": { "name": "Paul E. McKenney", "email": "paul.mckenney@linaro.org", "time": "Sat May 05 19:10:35 2012 -0700" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Wed Jun 06 20:43:27 2012 -0700" }, "message": "rcu: Update RCU_FAST_NO_HZ tracing for lazy callbacks\n\nIn the current code, a short dyntick-idle interval (where there is\nat least one non-lazy callback on the CPU) and a long dyntick-idle\ninterval (where there are only lazy callbacks on the CPU) are traced\nidentically, which can be less than helpful. This commit therefore\nemits different event traces in these two cases.\n\nSigned-off-by: Paul E. McKenney \u003cpaul.mckenney@linaro.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nTested-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nTested-by: Pascal Chapperon \u003cpascal.chapperon@wanadoo.fr\u003e\n" }, { "commit": "8f5af6f1f2d09fe5eac86a5dc1731a5917c1503a", "tree": "b7093c8c08377f23645cc7d3619f3fc5c5bdf6f8", "parents": [ "f8f5701bdaf9134b1f90e5044a82c66324d2073f" ], "author": { "name": "Paul E. McKenney", "email": "paul.mckenney@linaro.org", "time": "Fri May 04 08:31:53 2012 -0700" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Wed Jun 06 20:43:27 2012 -0700" }, "message": "rcu: RCU_FAST_NO_HZ detection of callback adoption\n\nIn the present implementations of CPU hotplug, the outgoing CPU is\nguaranteed to run its stop-machine process on the way out, which\nwill guarantee that RCU_FAST_NO_HZ forces the CPU out of dyntick-idle\nmode.\n\nHowever, new versions of CPU hotplug might not work this way. This\ncommit therefore removes this design constraint by explicitly notifying\nCPUs when they adopt non-lazy RCU callbacks.\n\nSigned-off-by: Paul E. McKenney \u003cpaul.mckenney@linaro.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nTested-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nTested-by: Pascal Chapperon \u003cpascal.chapperon@wanadoo.fr\u003e\n" }, { "commit": "f2bf1f6f5f89d031245067512449fc889b2f4bb2", "tree": "3211ae100915962ccdc4ea7a4b521ddfe2697cad", "parents": [ "5041caa4d5e6dae418963de0c8f8a83f35e35dcf" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Jun 06 19:50:40 2012 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Jun 06 22:15:14 2012 -0400" }, "message": "tracing: Have tracing_off() actually turn tracing off\n\nA recent update to have tracing_on/off() only affect the ftrace ring\nbuffers instead of all ring buffers had a cut and paste error.\nThe tracing_off() did the exact same thing as tracing_on() and\nwould not actually turn off tracing. Unfortunately, tracing_off()\nis more important to be working than tracing_on() as this is a key\ndevelopment tool, as it lets the developer turn off tracing as soon\nas a problem is discovered. It is also used by panic and oops code.\n\nThis bug also breaks the \u0027echo func:traceoff \u003e set_ftrace_filter\u0027\n\nCc: \u003cstable@vger.kernel.org\u003e # 3.4\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "967db0ea65b0bf8507a7643ac8f296c4f2c0a834", "tree": "143a9493c9a81db130b313c0c46d87a909485541", "parents": [ "71fae7e714749a52cb8be777ec014f82e8a747f4" ], "author": { "name": "Salman Qazi", "email": "sqazi@google.com", "time": "Wed Jun 06 18:51:35 2012 -0700" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Jun 06 18:51:35 2012 -0700" }, "message": "cgroup: make sure that decisions in __css_put are atomic\n\n__css_put is using atomic_dec on the ref count, and then\nlooking at the ref count to make decisions. This is prone\nto races, as someone else may decrement ref count between\nour decrement and our decision. Instead, we should base our\ndecisions on the value that we decremented the ref count to.\n\n(This results in an actual race on Google\u0027s kernel which I\nhaven\u0027t been able to reproduce on the upstream kernel. Having\nsaid that, it\u0027s still incorrect by inspection).\n\nSigned-off-by: Salman Qazi \u003csqazi@google.com\u003e\nAcked-by: Li Zefan \u003clizefan@huawei.com\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: stable@vger.kernel.org\n" }, { "commit": "a841f8cef4bb124f0f5563314d0beaf2e1249d72", "tree": "b846a9065f021313027f1bbc489743c43ea5869e", "parents": [ "d039ac60800fe8ed8522ec3b9ca796aaf748c18b" ], "author": { "name": "Dimitri Sivanich", "email": "sivanich@sgi.com", "time": "Tue Jun 05 13:44:36 2012 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 17:07:41 2012 +0200" }, "message": "sched: Fix the relax_domain_level boot parameter\n\nIt does not get processed because sched_domain_level_max is 0 at the\ntime that setup_relax_domain_level() is run.\n\nSimply accept the value as it is, as we don\u0027t know the value of\nsched_domain_level_max until sched domain construction is completed.\n\nFix sched_relax_domain_level in cpuset. The build_sched_domain() routine calls\nthe set_domain_attribute() routine prior to setting the sd-\u003elevel, however,\nthe set_domain_attribute() routine relies on the sd-\u003elevel to decide whether\nidle load balancing will be off/on.\n\nSigned-off-by: Dimitri Sivanich \u003csivanich@sgi.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/20120605184436.GA15668@sgi.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "d039ac60800fe8ed8522ec3b9ca796aaf748c18b", "tree": "b00845d9466d1abed5dbfda1e3c68713333460bc", "parents": [ "c3decf0dfbc95736b7c0ab68fa4e5854c4734da9" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 31 21:20:16 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 16:52:30 2012 +0200" }, "message": "sched: Validate assumptions in sched_init_numa()\n\nAdd some code to validate assumptions we\u0027re making and output\nwarnings if they are not.\n\nIf this trigger we want to know about it.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Alex Shi \u003clkml.alex@gmail.com\u003e\nLink: http://lkml.kernel.org/n/tip-6uc3wk5s9udxtdl9cnku0vtt@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "c3decf0dfbc95736b7c0ab68fa4e5854c4734da9", "tree": "c21748af2b4c7e4b738cefd2076c1ccc6ed2c664", "parents": [ "c1174876874dcf8986806e4dad3d7d07af20b439" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 31 12:05:32 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 16:52:27 2012 +0200" }, "message": "sched: Always initialize cpu-power\n\nOften when we run into mis-shapen topologies the balance iteration\nfails to update the cpu power properly and we\u0027ll end up in /0 traps.\n\nAlways initialize the cpu-power to a semi-sane value so that we can\nat least boot the machine, even if the load-balancer might not\nfunction correctly.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-3lbhyj25sr169ha7z3qht5na@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "c1174876874dcf8986806e4dad3d7d07af20b439", "tree": "7e2ea14ba9421bddd63e1810716f1929c753e28b", "parents": [ "7f1b43936f0ecad14770634c021cf4a929aec74d" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 31 14:47:33 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 16:52:26 2012 +0200" }, "message": "sched: Fix domain iteration\n\nWeird topologies can lead to asymmetric domain setups. This needs\nfurther consideration since these setups are typically non-minimal\ntoo.\n\nFor now, make it work by adding an extra mask selecting which CPUs\nare allowed to iterate up.\n\nThe topology that triggered it is the one from David Rientjes:\n\n\t10 20 20 30\n\t20 10 20 20\n\t20 20 10 20\n\t30 20 20 10\n\nresulting in boxes that wouldn\u0027t even boot.\n\nReported-by: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-3p86l9cuaqnxz7uxsojmz5rm@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "7f1b43936f0ecad14770634c021cf4a929aec74d", "tree": "ea200fcf70af41839e049c59a2dc922407e7495b", "parents": [ "10717dcde10d09f9fcee53a12a4236af1a82b484" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 17 21:19:46 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 16:52:26 2012 +0200" }, "message": "sched/rt: Fix lockdep annotation within find_lock_lowest_rq()\n\nRoland Dreier reported spurious, hard to trigger lockdep warnings\nwithin the scheduler - without any real lockup.\n\nThis bit gives us the right clue:\n\n\u003e [89945.640512] [\u003cffffffff8103fa1a\u003e] double_lock_balance+0x5a/0x90\n\u003e [89945.640568] [\u003cffffffff8104c546\u003e] push_rt_task+0xc6/0x290\n\nif you look at that code you\u0027ll find the double_lock_balance() in\nquestion is the one in find_lock_lowest_rq() [yay for inlining].\n\nNow find_lock_lowest_rq() has a bug.. it fails to use\ndouble_unlock_balance() in one exit path, if this results in a retry in\npush_rt_task() we\u0027ll call double_lock_balance() again, at which point\nwe\u0027ll run into said lockdep confusion.\n\nReported-by: Roland Dreier \u003croland@kernel.org\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1337282386.4281.77.camel@twins\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "10717dcde10d09f9fcee53a12a4236af1a82b484", "tree": "ef7fa575d2bec5631201cd72c5764f042650e382", "parents": [ "ceb1cbac8eda66cf0f889def226b4e82f8ff857b" ], "author": { "name": "Alex Shi", "email": "alex.shi@intel.com", "time": "Wed Jun 06 14:52:51 2012 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 16:52:25 2012 +0200" }, "message": "sched/numa: Load balance between remote nodes\n\nCommit cb83b629b (\"sched/numa: Rewrite the CONFIG_NUMA sched\ndomain support\") removed the NODE sched domain and started checking\nif the node distance in SLIT table is farther than REMOTE_DISTANCE,\nif so, it will lose the load balance chance at exec/fork/wake_affine\npoints.\n\nBut actually, even the node distance is farther than REMOTE_DISTANCE.\n\nModern CPUs also has QPI like connections, which ensures that memory\naccess is not too slow between nodes. So the above change in behavior\non NUMA machine causes a performance regression on various benchmarks:\nhackbench, tbench, netperf, oltp, etc.\n\nThis patch will recover the scheduler behavior to old mode on all my\nIntel platforms: NHM EP/EX, WSM EP, SNB EP/EP4S, and thus fixes the\nperfromance regressions. (all of them just have 2 kinds distance, 10, 21)\n\nSigned-off-by: Alex Shi \u003calex.shi@intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1338965571-9812-1-git-send-email-alex.shi@intel.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "c7f5f4ab10ce4e05b9f8877f1fd112faba71f175", "tree": "f4e09bf621f0201283167f17f2b33461042cc1a7", "parents": [ "eea5b5510fc5545d15b69da8e485a7424ae388cf", "62be73eafaa045d3233337303fb140f7f8a61135" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 11:12:55 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 11:12:55 2012 +0200" }, "message": "Merge branch \u0027core/debug\u0027 into core/urgent\n\nMerge two debugging patchlets that were waiting for\npreparatory commits to hit upstream.\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "02e03040a3fda866e5d1018734bd5b5ede997043", "tree": "5bb2b9ea8c25504cd45a79d576839bafe6610dd0", "parents": [ "f9ba7179ce91fb77b2adf6eaab3676ab3a1f5a15", "cb7225feec627e91d598198996429e9ee6804f8d" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 08:40:10 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 08:46:33 2012 +0200" }, "message": "Merge tag \u0027perf-urgent-for-mingo\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent\n\nPull perf fixes from Arnaldo Carvalho de Melo:\n\n * Endianness fixes from Jiri Olsa\n\n * Fixes for make perf tarball\n\n * Fix for DSO name in perf script callchains, from David Ahern\n\n * Segfault fixes for perf top --callchain, from Namhyung Kim\n\n * Minor function result fixes from Srikar Dronamraju\n\n * Add missing 3rd ioctl parameter, from Namhyung Kim\n\n * Fix pager usage in minimal embedded systems, from Avik Sil\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "365f0e173f44aad979c464eb8250f6138a9911ef", "tree": "cec00f56b5ab382df2701e06dc02bdfd04dbd628", "parents": [ "690efa08e268a36df170bee79df93a9649c3f217", "fa980ca87d15bb8a1317853f257a505990f3ffde" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 05 11:54:12 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 05 11:54:12 2012 -0700" }, "message": "Merge branch \u0027for-3.5-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup\n\nPull cgroup fix from Tejun Heo:\n \"This fixes the possible premature superblock release on umount bug\n mentioned during v3.5-rc1 pull request.\n\n Originally, cgroup dentry destruction path assumed that cgroup dentry\n didn\u0027t have any reference left after cgroup removal thus put super\n during dentry removal. Now that there can be lingering dentry\n references, this led to super being put with live dentries. This\n patch fixes the problem by putting super ref on dentry release instead\n of removal.\"\n\n* \u0027for-3.5-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:\n cgroup: superblock can\u0027t be released with active dentries\n" }, { "commit": "0b3e9f3f21c42d064f5f4088df4088e3d55755eb", "tree": "b153a9346bf21a64a9e5c5f3f440f00b591fd269", "parents": [ "99becf1328d8d71dd6f4480e3591d7dcdb389e57", "6a4c96eef42f835734a82c6b512abf9881b7c55d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 05 09:47:15 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 05 09:47:15 2012 -0700" }, "message": "Merge branch \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler fixes from Ingo Molnar.\n\n* \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n sched: Remove NULL assignment of dattr_cur\n sched: Remove the last NULL entry from sched_feat_names\n sched: Make sched_feat_names const\n sched/rt: Fix SCHED_RR across cgroups\n sched: Move nr_cpus_allowed out of \u0027struct sched_rt_entity\u0027\n sched: Make sure to not re-read variables after validation\n sched: Fix SD_OVERLAP\n sched: Don\u0027t try allocating memory from offline nodes\n sched/nohz: Fix rq-\u003ecpu_load calculations some more\n sched/x86: Use cpu_llc_shared_mask(cpu) for coregroup_mask\n" }, { "commit": "fad0c66c4bb836d57a5f125ecd38bed653ca863a", "tree": "f35b5081b03f0f090c13a0fa074ff7cb3b1f60c1", "parents": [ "9171c670b4915e30360c2aed530b8377fbbcc852" ], "author": { "name": "John Stultz", "email": "john.stultz@linaro.org", "time": "Wed May 30 10:54:57 2012 -0700" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Jun 04 21:46:29 2012 +0200" }, "message": "timekeeping: Fix CLOCK_MONOTONIC inconsistency during leapsecond\n\nCommit 6b43ae8a61 (ntp: Fix leap-second hrtimer livelock) broke the\nleapsecond update of CLOCK_MONOTONIC. The missing leapsecond update to\nwall_to_monotonic causes discontinuities in CLOCK_MONOTONIC.\n\nAdjust wall_to_monotonic when NTP inserted a leapsecond.\n\nReported-by: Richard Cochran \u003crichardcochran@gmail.com\u003e\nSigned-off-by: John Stultz \u003cjohn.stultz@linaro.org\u003e\nTested-by: Richard Cochran \u003crichardcochran@gmail.com\u003e\nCc: stable@kernel.org\nLink: http://lkml.kernel.org/r/1338400497-12420-1-git-send-email-john.stultz@linaro.org\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "9171c670b4915e30360c2aed530b8377fbbcc852", "tree": "c583edd07ecd479f902b90c46ab37cf23b4fe28d", "parents": [ "c22072bdf053b115a1126658100967dda00b5ecf", "818b0f3bfb236ae66cac3ff38e86b9e47f24b7aa", "4a70d2d9909b43ed88043b98cabe2c7fbd563021" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 04 11:36:51 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 04 11:36:51 2012 -0700" }, "message": "Merge branches \u0027irq-urgent-for-linus\u0027 and \u0027smp-hotplug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull irq and smpboot updates from Thomas Gleixner:\n \"Just cleanup patches with no functional change and a fix for suspend\n issues.\"\n\n* \u0027irq-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n genirq: Introduce irq_do_set_affinity() to reduce duplicated code\n genirq: Add IRQS_PENDING for nested and simple irq\n\n* \u0027smp-hotplug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n smpboot, idle: Fix comment mismatch over idle_threads_init()\n smpboot, idle: Optimize calls to smp_processor_id() in idle_threads_init()\n" }, { "commit": "c22072bdf053b115a1126658100967dda00b5ecf", "tree": "21520119dbbfce237a5005e9840105e86944c9cc", "parents": [ "0640113be25d283e0ff77a9f041e1242182387f0", "62cf20b32aee4ae889a2eb40fd41c0eab73de970" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 04 11:25:31 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 04 11:25:31 2012 -0700" }, "message": "Merge branch \u0027timers-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull timer updates from Thomas Gleixner:\n \"The clocksource driver is pure hardware enablement and the skew option\n is default off, well tested and non dangerous.\"\n\n* \u0027timers-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n tick: Move skew_tick option into the HIGH_RES_TIMER section\n clocksource: em_sti: Add DT support\n clocksource: em_sti: Emma Mobile STI driver\n clockevents: Make clockevents_config() a global symbol\n tick: Add tick skew boot option\n" }, { "commit": "86c47b70f62a7072d441ba212aab33c2f82627c2", "tree": "d03988bd2226966352bb7f3c2e82ff545353d2c4", "parents": [ "1193755ac6328ad240ba987e6ec41d5e8baf0680", "44fbbb3dc687c9709a6f2236197316e5c79ab1eb" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 01 11:53:44 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 01 11:53:44 2012 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal\n\nPull third pile of signal handling patches from Al Viro:\n \"This time it\u0027s mostly helpers and conversions to them; there\u0027s a lot\n of stuff remaining in the tree, but that\u0027ll either go in -rc2\n (isolated bug fixes, ideally via arch maintainers\u0027 trees) or will sit\n there until the next cycle.\"\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:\n x86: get rid of calling do_notify_resume() when returning to kernel mode\n blackfin: check __get_user() return value\n whack-a-mole with TIF_FREEZE\n FRV: Optimise the system call exit path in entry.S [ver #2]\n FRV: Shrink TIF_WORK_MASK [ver #2]\n FRV: Prevent syscall exit tracing and notify_resume at end of kernel exceptions\n new helper: signal_delivered()\n powerpc: get rid of restore_sigmask()\n most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set\n set_restore_sigmask() is never called without SIGPENDING (and never should be)\n TIF_RESTORE_SIGMASK can be set only when TIF_SIGPENDING is set\n don\u0027t call try_to_freeze() from do_signal()\n pull clearing RESTORE_SIGMASK into block_sigmask()\n sh64: failure to build sigframe !\u003d signal without handler\n openrisc: tracehook_signal_handler() is supposed to be called on success\n new helper: sigmask_to_save()\n new helper: restore_saved_sigmask()\n new helpers: {clear,test,test_and_clear}_restore_sigmask()\n HAVE_RESTORE_SIGMASK is defined on all architectures now\n" }, { "commit": "1193755ac6328ad240ba987e6ec41d5e8baf0680", "tree": "40bf847d7e3ebaa57b107151d14e6cd1d280cc6d", "parents": [ "4edebed86690eb8db9af3ab85baf4a34e73266cc", "0ef97dcfce4179a2eba046b855ee2f91d6f1b414" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 01 10:34:35 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 01 10:34:35 2012 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs\n\nPull vfs changes from Al Viro.\n \"A lot of misc stuff. The obvious groups:\n * Miklos\u0027 atomic_open series; kills the damn abuse of\n -\u003ed_revalidate() by NFS, which was the major stumbling block for\n all work in that area.\n * ripping security_file_mmap() and dealing with deadlocks in the\n area; sanitizing the neighborhood of vm_mmap()/vm_munmap() in\n general.\n * -\u003eencode_fh() switched to saner API; insane fake dentry in\n mm/cleancache.c gone.\n * assorted annotations in fs (endianness, __user)\n * parts of Artem\u0027s -\u003es_dirty work (jff2 and reiserfs parts)\n * -\u003eupdate_time() work from Josef.\n * other bits and pieces all over the place.\n\n Normally it would\u0027ve been in two or three pull requests, but\n signal.git stuff had eaten a lot of time during this cycle ;-/\"\n\nFix up trivial conflicts in Documentation/filesystems/vfs.txt (the\n\u0027truncate_range\u0027 inode method was removed by the VM changes, the VFS\nupdate adds an \u0027update_time()\u0027 method), and in fs/btrfs/ulist.[ch] (due\nto sparse fix added twice, with other changes nearby).\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (95 commits)\n nfs: don\u0027t open in -\u003ed_revalidate\n vfs: retry last component if opening stale dentry\n vfs: nameidata_to_filp(): don\u0027t throw away file on error\n vfs: nameidata_to_filp(): inline __dentry_open()\n vfs: do_dentry_open(): don\u0027t put filp\n vfs: split __dentry_open()\n vfs: do_last() common post lookup\n vfs: do_last(): add audit_inode before open\n vfs: do_last(): only return EISDIR for O_CREAT\n vfs: do_last(): check LOOKUP_DIRECTORY\n vfs: do_last(): make ENOENT exit RCU safe\n vfs: make follow_link check RCU safe\n vfs: do_last(): use inode variable\n vfs: do_last(): inline walk_component()\n vfs: do_last(): make exit RCU safe\n vfs: split do_lookup()\n Btrfs: move over to use -\u003eupdate_time\n fs: introduce inode operation -\u003eupdate_time\n reiserfs: get rid of resierfs_sync_super\n reiserfs: mark the superblock as dirty a bit later\n ...\n" }, { "commit": "efee984c27b67e3ebef40410f35671997441b57c", "tree": "53457dba2338f853d34e1754e7f7f960e4a29482", "parents": [ "17440f171e28e86cc21a4c8fd1fa3c561503f80e" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Apr 28 02:04:15 2012 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Jun 01 12:58:52 2012 -0400" }, "message": "new helper: signal_delivered()\n\nDoes block_sigmask() + tracehook_signal_handler(); called when\nsigframe has been successfully built. All architectures converted\nto it; block_sigmask() itself is gone now (merged into this one).\n\nI\u0027m still not too happy with the signature, but that\u0027s a separate\nstory (IMO we need a structure that would contain signal number +\nsiginfo + k_sigaction, so that get_signal_to_deliver() would fill one,\nsignal_delivered(), handle_signal() and probably setup...frame() -\ntake one).\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "77097ae503b170120ab66dd1d547f8577193f91f", "tree": "bee5b2e8d91b9ec8ab74c58cbec1796c7bacc2e5", "parents": [ "edd63a2763bdae0daa4f0a4d4c5d61d1154352a5" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Apr 27 13:58:59 2012 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Jun 01 12:58:51 2012 -0400" }, "message": "most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set\n\nOnly 3 out of 63 do not. Renamed the current variant to __set_current_blocked(),\nadded set_current_blocked() that will exclude unblockable signals, switched\nopen-coded instances to it.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "a610d6e672d6d3723e8da257ad4a8a288a8f2f89", "tree": "2fac6ce7f72756771f4f87583205cc402589dcad", "parents": [ "5754f412a3f107cbcd93ee125bef296f2a07539b" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon May 21 23:42:15 2012 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Jun 01 12:58:49 2012 -0400" }, "message": "pull clearing RESTORE_SIGMASK into block_sigmask()\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "754421c8cab1a568be844a7069fe04c1cf6391b8", "tree": "71fa1f54e664ff45289fccfa946747a18e20727f", "parents": [ "fb21affa49204acd409328415b49bfe90136653c" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu Apr 26 18:31:00 2012 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Jun 01 12:58:46 2012 -0400" }, "message": "HAVE_RESTORE_SIGMASK is defined on all architectures now\n\nEveryone either defines it in arch thread_info.h or has TIF_RESTORE_SIGMASK\nand picks default set_restore_sigmask() in linux/thread_info.h. Kill the\nifdefs, slap #error in linux/thread_info.h to catch breakage when new ones\nget merged.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "fb21affa49204acd409328415b49bfe90136653c", "tree": "3535dbe0c0aad049a38cadfcffe78409397a1b32", "parents": [ "a00b6151a2ae4c52576c35d3998e144a993d50b8", "f23ca335462e3c84f13270b9e65f83936068ec2c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 18:47:30 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 18:47:30 2012 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal\n\nPull second pile of signal handling patches from Al Viro:\n \"This one is just task_work_add() series + remaining prereqs for it.\n\n There probably will be another pull request from that tree this\n cycle - at least for helpers, to get them out of the way for per-arch\n fixes remaining in the tree.\"\n\nFix trivial conflict in kernel/irq/manage.c: the merge of Andrew\u0027s pile\nhad brought in commit 97fd75b7b8e0 (\"kernel/irq/manage.c: use the\npr_foo() infrastructure to prefix printks\") which changed one of the\npr_err() calls that this merge moves around.\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:\n keys: kill task_struct-\u003ereplacement_session_keyring\n keys: kill the dummy key_replace_session_keyring()\n keys: change keyctl_session_to_parent() to use task_work_add()\n genirq: reimplement exit_irq_thread() hook via task_work_add()\n task_work_add: generic process-context callbacks\n avr32: missed _TIF_NOTIFY_RESUME on one of do_notify_resume callers\n parisc: need to check NOTIFY_RESUME when exiting from syscall\n move key_repace_session_keyring() into tracehook_notify_resume()\n TIF_NOTIFY_RESUME is defined on all targets now\n" }, { "commit": "08615d7d85e5aa02c05bf6c4dde87d940e7f85f6", "tree": "18906149d313d25914160aca21cedf54b3a7e818", "parents": [ "9fdadb2cbaf4b482dfd6086e8bd3d2db071a1702", "0a4dd35c67b144d8ef9432120105f1aab9293ee9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 18:10:18 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 18:10:18 2012 -0700" }, "message": "Merge branch \u0027akpm\u0027 (Andrew\u0027s patch-bomb)\n\nMerge misc patches from Andrew Morton:\n\n - the \"misc\" tree - stuff from all over the map\n\n - checkpatch updates\n\n - fatfs\n\n - kmod changes\n\n - procfs\n\n - cpumask\n\n - UML\n\n - kexec\n\n - mqueue\n\n - rapidio\n\n - pidns\n\n - some checkpoint-restore feature work. Reluctantly. Most of it\n delayed a release. I\u0027m still rather worried that we don\u0027t have a\n clear roadmap to completion for this work.\n\n* emailed from Andrew Morton \u003cakpm@linux-foundation.org\u003e: (78 patches)\n kconfig: update compression algorithm info\n c/r: prctl: add ability to set new mm_struct::exe_file\n c/r: prctl: extend PR_SET_MM to set up more mm_struct entries\n c/r: procfs: add arg_start/end, env_start/end and exit_code members to /proc/$pid/stat\n syscalls, x86: add __NR_kcmp syscall\n fs, proc: introduce /proc/\u003cpid\u003e/task/\u003ctid\u003e/children entry\n sysctl: make kernel.ns_last_pid control dependent on CHECKPOINT_RESTORE\n aio/vfs: cleanup of rw_copy_check_uvector() and compat_rw_copy_check_uvector()\n eventfd: change int to __u64 in eventfd_signal()\n fs/nls: add Apple NLS\n pidns: make killed children autoreap\n pidns: use task_active_pid_ns in do_notify_parent\n rapidio/tsi721: add DMA engine support\n rapidio: add DMA engine support for RIO data transfers\n ipc/mqueue: add rbtree node caching support\n tools/selftests: add mq_perf_tests\n ipc/mqueue: strengthen checks on mqueue creation\n ipc/mqueue: correct mq_attr_ok test\n ipc/mqueue: improve performance of send/recv\n selftests: add mq_open_tests\n ...\n" }, { "commit": "b32dfe377102ce668775f8b6b1461f7ad428f8b6", "tree": "f89be6bd34eb757c471f3ca506e0ce92224f9bc5", "parents": [ "fe8c7f5cbf91124987106faa3bdf0c8b955c4cf7" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Thu May 31 16:26:46 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:32 2012 -0700" }, "message": "c/r: prctl: add ability to set new mm_struct::exe_file\n\nWhen we do restore we would like to have a way to setup a former\nmm_struct::exe_file so that /proc/pid/exe would point to the original\nexecutable file a process had at checkpoint time.\n\nFor this the PR_SET_MM_EXE_FILE code is introduced. This option takes a\nfile descriptor which will be set as a source for new /proc/$pid/exe\nsymlink.\n\nNote it allows to change /proc/$pid/exe if there are no VM_EXECUTABLE\nvmas present for current process, simply because this feature is a special\nto C/R and mm::num_exe_file_vmas become meaningless after that.\n\nTo minimize the amount of transition the /proc/pid/exe symlink might have,\nthis feature is implemented in one-shot manner. Thus once changed the\nsymlink can\u0027t be changed again. This should help sysadmins to monitor the\nsymlinks over all process running in a system.\n\nIn particular one could make a snapshot of processes and ring alarm if\nthere unexpected changes of /proc/pid/exe\u0027s in a system.\n\nNote -- this feature is available iif CONFIG_CHECKPOINT_RESTORE is set and\nthe caller must have CAP_SYS_RESOURCE capability granted, otherwise the\nrequest to change symlink will be rejected.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nReviewed-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Kees Cook \u003ckeescook@chromium.org\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fe8c7f5cbf91124987106faa3bdf0c8b955c4cf7", "tree": "3ddb0013465d7cd09ef6bc2fab18cb59055a309b", "parents": [ "5b172087f99189416d5f47fd7ab5e6fb762a9ba3" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Thu May 31 16:26:45 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:32 2012 -0700" }, "message": "c/r: prctl: extend PR_SET_MM to set up more mm_struct entries\n\nDuring checkpoint we dump whole process memory to a file and the dump\nincludes process stack memory. But among stack data itself, the stack\ncarries additional parameters such as command line arguments, environment\ndata and auxiliary vector.\n\nSo when we do restore procedure and once we\u0027ve restored stack data itself\nwe need to setup mm_struct::arg_start/end, env_start/end, so restored\nprocess would be able to find command line arguments and environment data\nit had at checkpoint time. The same applies to auxiliary vector.\n\nFor this reason additional PR_SET_MM_(ARG_START | ARG_END | ENV_START |\nENV_END | AUXV) codes are introduced.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nAcked-by: Kees Cook \u003ckeescook@chromium.org\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Andrew Vagin \u003cavagin@openvz.org\u003e\nCc: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Vasiliy Kulikov \u003csegoon@openwall.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d97b46a64674a267bc41c9e16132ee2a98c3347d", "tree": "316f77d212c84aef226684eb05d5d33f40743ac9", "parents": [ "818411616baf46ceba0cff6f05af3a9b294734f7" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Thu May 31 16:26:44 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:32 2012 -0700" }, "message": "syscalls, x86: add __NR_kcmp syscall\n\nWhile doing the checkpoint-restore in the user space one need to determine\nwhether various kernel objects (like mm_struct-s of file_struct-s) are\nshared between tasks and restore this state.\n\nThe 2nd step can be solved by using appropriate CLONE_ flags and the\nunshare syscall, while there\u0027s currently no ways for solving the 1st one.\n\nOne of the ways for checking whether two tasks share e.g. mm_struct is to\nprovide some mm_struct ID of a task to its proc file, but showing such\ninfo considered to be not that good for security reasons.\n\nThus after some debates we end up in conclusion that using that named\n\u0027comparison\u0027 syscall might be the best candidate. So here is it --\n__NR_kcmp.\n\nIt takes up to 5 arguments - the pids of the two tasks (which\ncharacteristics should be compared), the comparison type and (in case of\ncomparison of files) two file descriptors.\n\nLookups for pids are done in the caller\u0027s PID namespace only.\n\nAt moment only x86 is supported and tested.\n\n[akpm@linux-foundation.org: fix up selftests, warnings]\n[akpm@linux-foundation.org: include errno.h]\n[akpm@linux-foundation.org: tweak comment text]\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nAcked-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Andrey Vagin \u003cavagin@openvz.org\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: H. Peter Anvin \u003chpa@zytor.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Glauber Costa \u003cglommer@parallels.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nCc: Pekka Enberg \u003cpenberg@kernel.org\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: Vasiliy Kulikov \u003csegoon@openwall.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Valdis.Kletnieks@vt.edu\nCc: Michal Marek \u003cmmarek@suse.cz\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "98ed57eef9f67dfe541be0bca34660ffc88365b2", "tree": "1dee418c15205a31a811597587bdec9d1bc0cdd2", "parents": [ "ac34ebb3a67e699edcb5ac72f19d31679369dfaa" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@gmail.com", "time": "Thu May 31 16:26:42 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:32 2012 -0700" }, "message": "sysctl: make kernel.ns_last_pid control dependent on CHECKPOINT_RESTORE\n\nFor those who doesn\u0027t need C/R functionality there is no need to control\nlast pid, ie the pid for the next fork() call.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Oleg Nesterov \u003coleg@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": "00c10bc13cdb58447d6bb2a003afad7bd60f5a5f", "tree": "64058d4c643706035e2327adecd8be18b852dfb6", "parents": [ "3208450488ae724196f1efffc457e4265957c04e" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu May 31 16:26:40 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:32 2012 -0700" }, "message": "pidns: make killed children autoreap\n\nForce SIGCHLD handling to SIG_IGN so that signals are not generated and so\nthat the children autoreap. This increases the parallelize and in general\nthe speed of network namespace shutdown.\n\nNote self reaping childrean can exist past zap_pid_ns_processess but they\nwill all be reaped before we allow the pid namespace init task with pid \u003d\u003d\n1 to be reaped.\n\n[akpm@linux-foundation.org: checkpatch fixes]\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Louis Rilling \u003clouis.rilling@kerlabs.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3208450488ae724196f1efffc457e4265957c04e", "tree": "bfad76a020bf5635e6529b3105f6ea4b521d7973", "parents": [ "9eaa3d9bb2c4da99b1161cfcc63f3e77d9d3d156" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu May 31 16:26:39 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:31 2012 -0700" }, "message": "pidns: use task_active_pid_ns in do_notify_parent\n\nUsing task_active_pid_ns is more robust because it works even after we\nhave called exit_namespaces. This change allows us to have parent\nprocesses that are zombies. Normally a zombie parent processes is crazy\nand the last thing you would want to have but in the case of not letting\nthe init process of a pid namespace be reaped until all of it\u0027s children\nare dead and reaped a zombie parent process is exactly what we want.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Louis Rilling \u003clouis.rilling@kerlabs.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e4cc2f873ad0833aa5c4aca56bebe15b9603a1e7", "tree": "f649dffdeb819f64434362f93cb42a7506866751", "parents": [ "2c922c51e6924298f8271d75732964f1ffdecaf2" ], "author": { "name": "Anton Vorontsov", "email": "anton.vorontsov@linaro.org", "time": "Thu May 31 16:26:26 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:30 2012 -0700" }, "message": "kernel/cpu.c: document clear_tasks_mm_cpumask()\n\nAdd more comments on clear_tasks_mm_cpumask, plus adds a runtime check:\nthe function is only suitable for offlined CPUs, and if called\ninappropriately, the kernel should scream aloud.\n\n[akpm@linux-foundation.org: tweak comment: s/walks up/walks/, use 80 cols]\nSuggested-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSuggested-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Anton Vorontsov \u003canton.vorontsov@linaro.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cb79295e20a8088a2fd6a9b3cb5f2d889ec36b4d", "tree": "e749be4ebd059d9dd1ff109c1cecb7b63109d2e0", "parents": [ "f7505d64f2db5da2d7d94873ddf2cd2524847061" ], "author": { "name": "Anton Vorontsov", "email": "anton.vorontsov@linaro.org", "time": "Thu May 31 16:26:22 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:29 2012 -0700" }, "message": "cpu: introduce clear_tasks_mm_cpumask() helper\n\nMany architectures clear tasks\u0027 mm_cpumask like this:\n\n\tread_lock(\u0026tasklist_lock);\n\tfor_each_process(p) {\n\t\tif (p-\u003emm)\n\t\t\tcpumask_clear_cpu(cpu, mm_cpumask(p-\u003emm));\n\t}\n\tread_unlock(\u0026tasklist_lock);\n\nDepending on the context, the code above may have several problems,\nsuch as:\n\n1. Working with task-\u003emm w/o getting mm or grabing the task lock is\n dangerous as -\u003emm might disappear (exit_mm() assigns NULL under\n task_lock(), so tasklist lock is not enough).\n\n2. Checking for process-\u003emm is not enough because process\u0027 main\n thread may exit or detach its mm via use_mm(), but other threads\n may still have a valid mm.\n\nThis patch implements a small helper function that does things\ncorrectly, i.e.:\n\n1. We take the task\u0027s lock while whe handle its mm (we can\u0027t use\n get_task_mm()/mmput() pair as mmput() might sleep);\n\n2. To catch exited main thread case, we use find_lock_task_mm(),\n which walks up all threads and returns an appropriate task\n (with task lock held).\n\nAlso, Per Peter Zijlstra\u0027s idea, now we don\u0027t grab tasklist_lock in\nthe new helper, instead we take the rcu read lock. We can do this\nbecause the function is called after the cpu is taken down and marked\noffline, so no new tasks will get this cpu set in their mm mask.\n\nSigned-off-by: Anton Vorontsov \u003canton.vorontsov@linaro.org\u003e\nCc: Richard Weinberger \u003crichard@nod.at\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Mike Frysinger \u003cvapier@gentoo.org\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f7505d64f2db5da2d7d94873ddf2cd2524847061", "tree": "a10aee9604306826816e8e5fc689201f49d7a6d0", "parents": [ "bca15543736f9be6d84e0bbc262ea7069076b9e6" ], "author": { "name": "Konstantin Khlebnikov", "email": "khlebnikov@openvz.org", "time": "Thu May 31 16:26:21 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:29 2012 -0700" }, "message": "fork: call complete_vfork_done() after clearing child_tid and flushing rss-counters\n\nChild should wake up the parent from vfork() only after finishing all\noperations with shared mm. There is no sense in using\nCLONE_CHILD_CLEARTID together with CLONE_VFORK, but it looks more accurate\nnow.\n\nSigned-off-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nCc: Markus Trippelsdorf \u003cmarkus@trippelsdorf.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "168eeccbc956d2ec083c3a513f7706784ee0dc5f", "tree": "6fb95d3080fadd96ea37b0e8c1bd747a183f8f60", "parents": [ "43e13cc107cf6cd3c15fbe1cef849435c2223d50" ], "author": { "name": "Tim Bird", "email": "tim.bird@am.sony.com", "time": "Thu May 31 16:26:16 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "stack usage: add pid to warning printk in check_stack_usage\n\nIn embedded systems, sometimes the same program (busybox) is the cause of\nmultiple warnings. Outputting the pid with the program name in the\nwarning printk helps distinguish which instances of a program are using\nthe stack most.\n\nThis is a small patch, but useful.\n\nSigned-off-by: Tim Bird \u003ctim.bird@am.sony.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Andrea Arcangeli \u003caarcange@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": "43e13cc107cf6cd3c15fbe1cef849435c2223d50", "tree": "9a1b3aa79ec2e8374944c23cf57a73790a3fc6ce", "parents": [ "9b3c98cd663750c33434572ff76ba306505eba5a" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Thu May 31 16:26:16 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "cred: remove task_is_dead() from __task_cred() validation\n\nCommit 8f92054e7ca1 (\"CRED: Fix __task_cred()\u0027s lockdep check and banner\ncomment\"):\n\n add the following validation condition:\n\n task-\u003eexit_state \u003e\u003d 0\n\n to permit the access if the target task is dead and therefore\n unable to change its own credentials.\n\nOK, but afaics currently this can only help wait_task_zombie() which calls\n__task_cred() without rcu lock.\n\nRemove this validation and change wait_task_zombie() to use task_uid()\ninstead. This means we do rcu_read_lock() only to shut up the lockdep,\nbut we already do the same in, say, wait_task_stopped().\n\ntask_is_dead() should die, task-\u003eexit_state !\u003d 0 means that this task has\npassed exit_notify(), only do_wait-like code paths should use this.\n\nUnfortunately, we can\u0027t kill task_is_dead() right now, it has already\nacquired buggy users in drivers/staging. The fix already exists.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nReviewed-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9b3c98cd663750c33434572ff76ba306505eba5a", "tree": "ff01ae7a11c5b0ece5a1c7107fc77276505b7342", "parents": [ "785042f2e275089e22c36b462f6495ce8d91732d" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Thu May 31 16:26:15 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "kmod.c: fix kernel-doc warning\n\nWarning(kernel/kmod.c:419): No description found for parameter \u0027depth\u0027\n\nSigned-off-by: 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": "785042f2e275089e22c36b462f6495ce8d91732d", "tree": "4e847408b4e675c7c616d357ae9b330f7104fbc0", "parents": [ "81ab6e7b26b453a795d46f2616ed0e31d97f05b9" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu May 31 16:26:15 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "kmod: move call_usermodehelper_fns() to .c file and unexport all it\u0027s helpers\n\nIf we move call_usermodehelper_fns() to kmod.c file and EXPORT_SYMBOL it\nwe can avoid exporting all it\u0027s helper functions:\n\tcall_usermodehelper_setup\n\tcall_usermodehelper_setfns\n\tcall_usermodehelper_exec\nAnd make all of them static to kmod.c\n\nSince the optimizer will see all these as a single call site it will\ninline them inside call_usermodehelper_fns(). So we loose the call to\n_fns but gain 3 calls to the helpers. (Not that it matters)\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Tetsuo Handa \u003cpenguin-kernel@I-love.SAKURA.ne.jp\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "81ab6e7b26b453a795d46f2616ed0e31d97f05b9", "tree": "a8d50eb5b35ad93b793450bfef4d90df34494a2c", "parents": [ "ae3cef7300e9fddc35ad251dd5f27c5b88c8594a" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu May 31 16:26:15 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "kmod: convert two call sites to call_usermodehelper_fns()\n\nBoth kernel/sys.c \u0026\u0026 security/keys/request_key.c where inlining the exact\nsame code as call_usermodehelper_fns(); So simply convert these sites to\ndirectly use call_usermodehelper_fns().\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Tetsuo Handa \u003cpenguin-kernel@I-love.SAKURA.ne.jp\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ae3cef7300e9fddc35ad251dd5f27c5b88c8594a", "tree": "d1f057eaeac5234e9056b3e9fa186c1bd7873bc5", "parents": [ "f0aac6162e945590057dcfb841bdce8fd18ed4f6" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu May 31 16:26:14 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "kmod: unexport call_usermodehelper_freeinfo()\n\ncall_usermodehelper_freeinfo() is not used outside of kmod.c. So unexport\nit, and make it static to kmod.c\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Tetsuo Handa \u003cpenguin-kernel@I-love.SAKURA.ne.jp\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d84970bbaf9a09b3fc60c18ee6d59bc9cb4c3b8a", "tree": "6ff6ac8a9c40c68e925ed000faae72379e6a3ea8", "parents": [ "97fd75b7b8e0f4e6d3f06b819c89b2555f626fcf" ], "author": { "name": "Nicolas Pitre", "email": "nico@fluxnic.net", "time": "Thu May 31 16:26:07 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:27 2012 -0700" }, "message": "kernel/cpu_pm.c: fix various typos\n\nSigned-off-by: Nicolas Pitre \u003cnico@linaro.org\u003e\nAcked-by: Colin Cross \u003cccross@android.com\u003e\nAcked-by: Santosh Shilimkar \u003csantosh.shilimkar@ti.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "97fd75b7b8e0f4e6d3f06b819c89b2555f626fcf", "tree": "96a575e38c143ddabe9a35d8ad89f268ccafb569", "parents": [ "499eea6bf9c06df3bf4549954aee6fb3427946ed" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Thu May 31 16:26:07 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:26 2012 -0700" }, "message": "kernel/irq/manage.c: use the pr_foo() infrastructure to prefix printks\n\nUse the module-wide pr_fmt() mechanism rather than open-coding \"genirq: \"\neverywhere.\n\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "499eea6bf9c06df3bf4549954aee6fb3427946ed", "tree": "bdd7c4be7ac845e0511c6b36f91245105ed8fdcf", "parents": [ "5401cf3fac92b35415c1d011e9866a90b8bed88f" ], "author": { "name": "Sasikantha babu", "email": "sasikanth.v19@gmail.com", "time": "Thu May 31 16:26:07 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:26 2012 -0700" }, "message": "sethostname/setdomainname: notify userspace when there is a change in uts_kern_table\n\nsethostname() and setdomainname() notify userspace on failure (without\nmodifying uts_kern_table). Change things so that we only notify userspace\non success, when uts_kern_table was actually modified.\n\nSigned-off-by: Sasikantha babu \u003csasikanth.v19@gmail.com\u003e\nCc: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nCc: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\nCc: WANG Cong \u003camwang@redhat.com\u003e\nReviewed-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ee5e5683d8ac3fec876cb6c26792212f773d5898", "tree": "80268aac11745372df02fb3fbdab669e60a405af", "parents": [ "a3860c1c5dd1137db23d7786d284939c5761d517" ], "author": { "name": "Wei Yang", "email": "weiyang@linux.vnet.ibm.com", "time": "Thu May 31 16:26:05 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:26 2012 -0700" }, "message": "kernel/resource.c: correct the comment of allocate_resource()\n\nIn the comment of allocate_resource(), the explanation of parameter max\nand min is not correct.\n\nActually, these two parameters are used to specify the range of the\nresource that will be allocated, not the min/max size that will be\nallocated.\n\nSigned-off-by: Wei Yang \u003cweiyang@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cb7225feec627e91d598198996429e9ee6804f8d", "tree": "15b755aadc5c3df60282eddbddc4a542d829ddf8", "parents": [ "a23c4dc422cff7bd30f40f5dc7c9ac4a6339005a" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Thu May 31 14:51:44 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu May 31 14:01:00 2012 -0300" }, "message": "perf: Remove duplicate invocation on perf_event_for_each\n\nThe @func callback was invoked twice for group leader when\nperf_event_for_each() called. It seems the commit 75f937f24bd9\n(\"perf_counter: Fix ctx-\u003emutex vs counter -\u003emutex inversion\") made the\nmistake during the change.\n\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1338443506-25009-1-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "65a50c951a38e9827dd9655b6e686bde912e799b", "tree": "cce85e74511741d52069977fee6984ce66c9277c", "parents": [ "42fe55ce905212542426fa6407a76534a5fb696a", "59cd358a7a5b2f6b61faa01dae6cfda3830ac62a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 30 11:12:00 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 30 11:12:00 2012 -0700" }, "message": "Merge branch \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull perf updates from Ingo Molnar.\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)\n perf ui browser: Stop using \u0027self\u0027\n perf annotate browser: Read perf config file for settings\n perf config: Allow \u0027_\u0027 in config file variable names\n perf annotate browser: Make feature toggles global\n perf annotate browser: The idx_asm field should be used in asm only view\n perf tools: Convert critical messages to ui__error()\n perf ui: Make --stdio default when TUI is not supported\n tools lib traceevent: Silence compiler warning on 32bit build\n perf record: Fix branch_stack type in perf_record_opts\n perf tools: Reconstruct event with modifiers from perf_event_attr\n perf top: Fix counter name fixup when fallbacking to cpu-clock\n perf tools: fix thread_map__new_by_pid_str() memory leak in error path\n perf tools: Do not use _FORTIFY_SOURCE when DEBUG\u003d1 is specified\n tools lib traceevent: Fix signature of create_arg_item()\n tools lib traceevent: Use proper function parameter type\n tools lib traceevent: Fix freeing arg on process_dynamic_array()\n tools lib traceevent: Fix a possibly wrong memory dereference\n tools lib traceevent: Fix a possible memory leak\n tools lib traceevent: Allow expressions in __print_symbolic() fields\n perf evlist: Explicititely initialize input_name\n ...\n" }, { "commit": "0d167518e045cc8bb63f0a8a0a85ad4fa4e0044f", "tree": "101a9b5d425d79f663e4f25f1e90b7a8cc6604f1", "parents": [ "2f83766d4b18774c856329a8fca4c9338dfeda39", "ff26eaadf4d914e397872b99885d45756104e9ae" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 30 08:52:42 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 30 08:52:42 2012 -0700" }, "message": "Merge branch \u0027for-3.5/core\u0027 of git://git.kernel.dk/linux-block\n\nMerge block/IO core bits from Jens Axboe:\n \"This is a bit bigger on the core side than usual, but that is purely\n because we decided to hold off on parts of Tejun\u0027s submission on 3.4\n to give it a bit more time to simmer. As a consequence, it\u0027s seen a\n long cycle in for-next.\n\n It contains:\n\n - Bug fix from Dan, wrong locking type.\n - Relax splice gifting restriction from Eric.\n - A ton of updates from Tejun, primarily for blkcg. This improves\n the code a lot, making the API nicer and cleaner, and also includes\n fixes for how we handle and tie policies and re-activate on\n switches. The changes also include generic bug fixes.\n - A simple fix from Vivek, along with a fix for doing proper delayed\n allocation of the blkcg stats.\"\n\nFix up annoying conflict just due to different merge resolution in\nDocumentation/feature-removal-schedule.txt\n\n* \u0027for-3.5/core\u0027 of git://git.kernel.dk/linux-block: (92 commits)\n blkcg: tg_stats_alloc_lock is an irq lock\n vmsplice: relax alignement requirements for SPLICE_F_GIFT\n blkcg: use radix tree to index blkgs from blkcg\n blkcg: fix blkcg-\u003ecss ref leak in __blkg_lookup_create()\n block: fix elvpriv allocation failure handling\n block: collapse blk_alloc_request() into get_request()\n blkcg: collapse blkcg_policy_ops into blkcg_policy\n blkcg: embed struct blkg_policy_data in policy specific data\n blkcg: mass rename of blkcg API\n blkcg: style cleanups for blk-cgroup.h\n blkcg: remove blkio_group-\u003epath[]\n blkcg: blkg_rwstat_read() was missing inline\n blkcg: shoot down blkgs if all policies are deactivated\n blkcg: drop stuff unused after per-queue policy activation update\n blkcg: implement per-queue policy activation\n blkcg: add request_queue-\u003eroot_blkg\n blkcg: make request_queue bypassing on allocation\n blkcg: make sure blkg_lookup() returns %NULL if @q is bypassing\n blkcg: make blkg_conf_prep() take @pol and return with queue lock held\n blkcg: remove static policy ID enums\n ...\n" }, { "commit": "6a4c96eef42f835734a82c6b512abf9881b7c55d", "tree": "d7b542e7606e0eaeec8f1160ea2eb37f18fa8d29", "parents": [ "7997a456ef841bb78eb6f881d7cc2c17c2f9b35e" ], "author": { "name": "Kamalesh Babulal", "email": "kamalesh@linux.vnet.ibm.com", "time": "Wed May 23 14:44:11 2012 +0530" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:27 2012 +0200" }, "message": "sched: Remove NULL assignment of dattr_cur\n\nRemove explicit NULL assignment of static pointer\ndattr_cur from init_sched_domains().\n\nSigned-off-by: Kamalesh Babulal \u003ckamalesh@linux.vnet.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/20120523091411.GG5005@linux.vnet.ibm.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "7997a456ef841bb78eb6f881d7cc2c17c2f9b35e", "tree": "b27fd20b6cec18b19744ae6ad74f201cfab37584", "parents": [ "1292531f6f27af909e713671dd9cc3bcab8114b7" ], "author": { "name": "Hiroshi Shimamoto", "email": "h-shimamoto@ct.jp.nec.com", "time": "Fri May 25 15:42:47 2012 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:27 2012 +0200" }, "message": "sched: Remove the last NULL entry from sched_feat_names\n\nNo need to have the last NULL entry.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/4FBF29E7.5020805@ct.jp.nec.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "1292531f6f27af909e713671dd9cc3bcab8114b7", "tree": "65f989da9c6bb9596d9b77f9c228f4d63f9b5317", "parents": [ "454c79999f7eaedcdf4c15c449e43902980cbdf5" ], "author": { "name": "Hiroshi Shimamoto", "email": "h-shimamoto@ct.jp.nec.com", "time": "Fri May 25 15:41:54 2012 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:26 2012 +0200" }, "message": "sched: Make sched_feat_names const\n\nThe strings sched_feat_names are never changed.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/4FBF29B2.9030904@ct.jp.nec.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "454c79999f7eaedcdf4c15c449e43902980cbdf5", "tree": "0da7f5fe6328283a2bf36648bc04e74028d5bfd8", "parents": [ "29baa7478ba47d746e3625c91d3b2afbf46b4312" ], "author": { "name": "Colin Cross", "email": "ccross@android.com", "time": "Wed May 16 21:34:23 2012 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:25 2012 +0200" }, "message": "sched/rt: Fix SCHED_RR across cgroups\n\ntask_tick_rt() has an optimization to only reschedule SCHED_RR tasks\nif they were the only element on their rq. However, with cgroups\na SCHED_RR task could be the only element on its per-cgroup rq but\nstill be competing with other SCHED_RR tasks in its parent\u0027s\ncgroup. In this case, the SCHED_RR task in the child cgroup would\nnever yield at the end of its timeslice. If the child cgroup\nrt_runtime_us was the same as the parent cgroup rt_runtime_us,\nthe task in the parent cgroup would starve completely.\n\nModify task_tick_rt() to check that the task is the only task on its\nrq, and that the each of the scheduling entities of its ancestors\nis also the only entity on its rq.\n\nSigned-off-by: Colin Cross \u003cccross@android.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1337229266-15798-1-git-send-email-ccross@android.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "29baa7478ba47d746e3625c91d3b2afbf46b4312", "tree": "a902e53baab64d89c07561694d171c4f8f4d1843", "parents": [ "b654f7de41b0e3903ee2b51d3b8db77fe52ce728" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Apr 23 12:11:21 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:25 2012 +0200" }, "message": "sched: Move nr_cpus_allowed out of \u0027struct sched_rt_entity\u0027\n\nSince nr_cpus_allowed is used outside of sched/rt.c and wants to be\nused outside of there more, move it to a more natural site.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-kr61f02y9brwzkh6x53pdptm@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "b654f7de41b0e3903ee2b51d3b8db77fe52ce728", "tree": "cdcd46a04d8b59d75045f1d3ae753e4843dbe2c0", "parents": [ "74a5ce20e6eeeb3751340b390e7ac1d1d07bbf55" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue May 22 14:04:28 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:24 2012 +0200" }, "message": "sched: Make sure to not re-read variables after validation\n\nWe could re-read rq-\u003ert_avg after we validated it was smaller than\ntotal, invalidating the check and resulting in an unintended negative.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nLink: http://lkml.kernel.org/r/1337688268.9698.29.camel@twins\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "74a5ce20e6eeeb3751340b390e7ac1d1d07bbf55", "tree": "ebbef56666aa11303eafbfb6adbfce56e7a4c605", "parents": [ "2ea45800d8e1c3c51c45a233d6bd6289a297a386" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Wed May 23 18:00:43 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:24 2012 +0200" }, "message": "sched: Fix SD_OVERLAP\n\nSD_OVERLAP exists to allow overlapping groups, overlapping groups\nappear in NUMA topologies that aren\u0027t fully connected.\n\nThe typical result of not fully connected NUMA is that each cpu (or\nrather node) will have different spans for a particular distance.\nHowever due to how sched domains are traversed -- only the first cpu\nin the mask goes one level up -- the next level only cares about the\nspans of the cpus that went up.\n\nDue to this two things were observed to be broken:\n\n - build_overlap_sched_groups() -- since its possible the cpu we\u0027re\n building the groups for exists in multiple (or all) groups, the\n selection criteria of the first group didn\u0027t ensure there was a cpu\n for which is was true that cpumask_first(span) \u003d\u003d cpu. Thus load-\n balancing would terminate.\n\n - update_group_power() -- assumed that the cpu span of the first\n group of the domain was covered by all groups of the child domain.\n The above explains why this isn\u0027t true, so deal with it.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nLink: http://lkml.kernel.org/r/1337788843.9783.14.camel@laptop\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "2ea45800d8e1c3c51c45a233d6bd6289a297a386", "tree": "13a6795e66593f355804915f30800f85b0289216", "parents": [ "5aaa0b7a2ed5b12692c9ffb5222182bd558d3146" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri May 25 09:26:43 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:23 2012 +0200" }, "message": "sched: Don\u0027t try allocating memory from offline nodes\n\nAllocators don\u0027t appreciate it when you try and allocate memory from\noffline nodes.\n\nReported-and-tested-by: Tony Luck \u003ctony.luck@intel.com\u003e\nReported-and-tested-by: Anton Blanchard \u003canton@samba.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-epfc1io9whb7o22bcujf31vn@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "5aaa0b7a2ed5b12692c9ffb5222182bd558d3146", "tree": "0334762e9d0e773acf21e61c682f895c25201c89", "parents": [ "9f646389aa7727a2fd8f9ae6337b92af9cfbc264" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 17 17:15:29 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:16 2012 +0200" }, "message": "sched/nohz: Fix rq-\u003ecpu_load calculations some more\n\nFollow up on commit 556061b00 (\"sched/nohz: Fix rq-\u003ecpu_load[]\ncalculations\") since while that fixed the busy case it regressed the\nmostly idle case.\n\nAdd a callback from the nohz exit to also age the rq-\u003ecpu_load[]\narray. This closes the hole where either there was no nohz load\nbalance pass during the nohz, or there was a \u0027significant\u0027 amount of\nidle time between the last nohz balance and the nohz exit.\n\nSo we\u0027ll update unconditionally from the tick to not insert any\naccidental 0 load periods while busy, and we try and catch up from\nnohz idle balance and nohz exit. Both these are still prone to missing\na jiffy, but that has always been the case.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: pjt@google.com\nCc: Venkatesh Pallipadi \u003cvenki@google.com\u003e\nLink: http://lkml.kernel.org/n/tip-kt0trz0apodbf84ucjfdbr1a@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "063e04776172f93b16a5eefd5661a340c1126513", "tree": "19cb1623631c8cc5dcf0d91f4731feec7cbefa04", "parents": [ "59cd358a7a5b2f6b61faa01dae6cfda3830ac62a", "731a7378b81c2f5fa88ca1ae20b83d548d5613dc" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 10:59:04 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 10:59:04 2012 +0200" }, "message": "Merge branch \u0027linus\u0027 into perf/urgent\n\nMerge back Linus\u0027s latest branch so that we pick up the uprobes changes.\n\n( I tested this branch locally and while it\u0027s one from the middle of the\n merge window it\u0027s a good one to base further work off. )\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "eea62f831b8030b0eeea8314eed73b6132d1de26", "tree": "7fd58cf63e62484b8d3a0c8c5d2e9193b85945a4", "parents": [ "9dd6fa03ab31bb57cee4623a689d058d222fbe68" ], "author": { "name": "Andi Kleen", "email": "ak@linux.intel.com", "time": "Tue May 08 13:32:24 2012 +0930" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue May 29 23:28:41 2012 -0400" }, "message": "brlocks/lglocks: turn into functions\n\nlglocks and brlocks are currently generated with some complicated macros\nin lglock.h. But there\u0027s no reason to not just use common utility\nfunctions and put all the data into a common data structure.\n\nSince there are at least two users it makes sense to share this code in a\nlibrary. This is also easier maintainable than a macro forest.\n\nThis will also make it later possible to dynamically allocate lglocks and\nalso use them in modules (this would both still need some additional, but\nnow straightforward, code)\n\n[akpm@linux-foundation.org: checkpatch fixes]\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "4796dd200db943e36f876e7029552212e5bbdf33", "tree": "a594c2b1ce1f4dbc96b25a516e49655917a9fa30", "parents": [ "05a6c8a9226599f921bd0b6e439dbc04df96a6fc" ], "author": { "name": "Stephen Boyd", "email": "sboyd@codeaurora.org", "time": "Tue May 29 15:07:33 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 29 16:22:32 2012 -0700" }, "message": "vsprintf: fix %ps on non symbols when using kallsyms\n\nUsing %ps in a printk format will sometimes fail silently and print the\nempty string if the address passed in does not match a symbol that\nkallsyms knows about. But using %pS will fall back to printing the full\naddress if kallsyms can\u0027t find the symbol. Make %ps act the same as %pS\nby falling back to printing the address.\n\nWhile we\u0027re here also make %ps print the module that a symbol comes from\nso that it matches what %pS already does. Take this simple function for\nexample (in a module):\n\n\tstatic void test_printk(void)\n\t{\n\t\tint test;\n\t\tpr_info(\"with pS: %pS\\n\", \u0026test);\n\t\tpr_info(\"with ps: %ps\\n\", \u0026test);\n\t}\n\nBefore this patch:\n\n with pS: 0xdff7df44\n with ps:\n\nAfter this patch:\n\n with pS: 0xdff7df44\n with ps: 0xdff7df44\n\nSigned-off-by: Stephen Boyd \u003csboyd@codeaurora.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2bb2ba9d51a8044a71a29608d2c4ef8f5b2d57a2", "tree": "5e58869c606c541d41a9bfa62aa6e8bc42cae5ac", "parents": [ "f9be23d6da035241b7687b25e64401171986dcef" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue May 29 15:07:03 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 29 16:22:27 2012 -0700" }, "message": "rescounters: add res_counter_uncharge_until()\n\nWhen killing a res_counter which is a child of other counter, we need to\ndo\n\n\tres_counter_uncharge(child, xxx)\n\tres_counter_charge(parent, xxx)\n\nThis is not atomic and wastes CPU. This patch adds\nres_counter_uncharge_until(). This function\u0027s uncharge propagates to\nancestors until specified res_counter.\n\n\tres_counter_uncharge_until(child, parent, xxx)\n\nNow the operation is atomic and efficient.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@redhat.com\u003e\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nCc: Michal Hocko \u003cmhocko@suse.cz\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Ying Han \u003cyinghan@google.com\u003e\nCc: Glauber Costa \u003cglommer@parallels.com\u003e\nReviewed-by: Tejun Heo \u003ctj@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": "91c63734f6908425903aed69c04035592f18d398", "tree": "6790827ab915b17c63d5c39d8c72c47f3764f868", "parents": [ "0ce72d4f7333248efbef1f3309770c7edb1b2625" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Tue May 29 15:06:24 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 29 16:22:20 2012 -0700" }, "message": "kernel: cgroup: push rcu read locking from css_is_ancestor() to callsite\n\nLibrary functions should not grab locks when the callsites can do it,\neven if the lock nests like the rcu read-side lock does.\n\nPush the rcu_read_lock() from css_is_ancestor() to its single user,\nmem_cgroup_same_or_subtree() in preparation for another user that may\nalready hold the rcu read-side lock.\n\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Michal Hocko \u003cmhocko@suse.cz\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Tejun Heo \u003ctj@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": "7edc8b0ac16cbaed7cb4ea4c6b95ce98d2997e84", "tree": "e333f72f3dc2c91385b8392bc31a44f5423d7f5c", "parents": [ "841e31e5cc6219d62054788faa289b6ed682d068" ], "author": { "name": "Siddhesh Poyarekar", "email": "siddhesh.poyarekar@gmail.com", "time": "Tue May 29 15:06:22 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 29 16:22:19 2012 -0700" }, "message": "mm/fork: fix overflow in vma length when copying mmap on clone\n\nThe vma length in dup_mmap is calculated and stored in a unsigned int,\nwhich is insufficient and hence overflows for very large maps (beyond\n16TB). The following program demonstrates this:\n\n#include \u003cstdio.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/mman.h\u003e\n\n#define GIG 1024 * 1024 * 1024L\n#define EXTENT 16393\n\nint main(void)\n{\n int i, r;\n void *m;\n char buf[1024];\n\n for (i \u003d 0; i \u003c EXTENT; i++) {\n m \u003d mmap(NULL, (size_t) 1 * 1024 * 1024 * 1024L,\n PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);\n\n if (m \u003d\u003d (void *)-1)\n printf(\"MMAP Failed: %d\\n\", m);\n else\n printf(\"%d : MMAP returned %p\\n\", i, m);\n\n r \u003d fork();\n\n if (r \u003d\u003d 0) {\n printf(\"%d: successed\\n\", i);\n return 0;\n } else if (r \u003c 0)\n printf(\"FORK Failed: %d\\n\", r);\n else if (r \u003e 0)\n wait(NULL);\n }\n return 0;\n}\n\nIncrease the storage size of the result to unsigned long, which is\nsufficient for storing the difference between addresses.\n\nSigned-off-by: Siddhesh Poyarekar \u003csiddhesh.poyarekar@gmail.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Jens Axboe \u003caxboe@kernel.dk\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Hugh Dickins \u003chughd@google.com\u003e\nCc: \u003cstable@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e709ffd6169ccd259eb5874e853303e91e94e829", "tree": "796b56c2507b8581492da73e354d651c9dd7076b", "parents": [ "edad9d2c337d43278a9d5aeb0ed531c2e838f8a6" ], "author": { "name": "Rik van Riel", "email": "riel@redhat.com", "time": "Tue May 29 15:06:18 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 29 16:22:19 2012 -0700" }, "message": "mm: remove swap token code\n\nThe swap token code no longer fits in with the current VM model. It\ndoes not play well with cgroups or the better NUMA placement code in\ndevelopment, since we have only one swap token globally.\n\nIt also has the potential to mess with scalability of the system, by\nincreasing the number of non-reclaimable pages on the active and\ninactive anon LRU lists.\n\nLast but not least, the swap token code has been broken for a year\nwithout complaints, as reported by Konstantin Khlebnikov. This suggests\nwe no longer have much use for it.\n\nThe days of sub-1G memory systems with heavy use of swap are over. If\nwe ever need thrashing reducing code in the future, we will have to\nimplement something that does scale.\n\nSigned-off-by: Rik van Riel \u003criel@redhat.com\u003e\nCc: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nAcked-by: Bob Picco \u003cbpicco@meloft.net\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fa980ca87d15bb8a1317853f257a505990f3ffde", "tree": "4288f6d27c8a2e30c1fa3b8a9a0f95c5fd6d48c6", "parents": [ "6101167727932a929e37fb8a6eeb68bdbf54d58e" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Thu May 24 08:24:39 2012 -0700" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Sun May 27 17:22:56 2012 -0700" }, "message": "cgroup: superblock can\u0027t be released with active dentries\n\n48ddbe1946 \"cgroup: make css-\u003erefcnt clearing on cgroup removal\noptional\" allowed a css to linger after the associated cgroup is\nremoved. As a css holds a reference on the cgroup\u0027s dentry, it means\nthat cgroup dentries may linger for a while.\n\ncgroup_create() does grab an active reference on the superblock to\nprevent it from going away while there are !root cgroups; however, the\nreference is put from cgroup_diput() which is invoked on cgroup\nremoval, so cgroup dentries which are removed but persisting due to\nlingering csses already have released their superblock active refs\nallowing superblock to be killed while those dentries are around.\n\nGiven the right condition, this makes cgroup_kill_sb() call\nkill_litter_super() with dentries with non-zero d_count leading to\nBUG() in shrink_dcache_for_umount_subtree().\n\nFix it by adding cgroup_dops-\u003ed_release() operation and moving\ndeactivate_super() to it. cgroup_diput() now marks dentry-\u003ed_fsdata\nwith itself if superblock should be deactivated and cgroup_d_release()\ndeactivates the superblock on dentry release.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nReported-by: Sasha Levin \u003clevinsasha928@gmail.com\u003e\nTested-by: Sasha Levin \u003clevinsasha928@gmail.com\u003e\nLKML-Reference: \u003cCA+1xoqe5hMuxzCRhMy7J0XchDk2ZnuxOHJKikROk1-ReAzcT6g@mail.gmail.com\u003e\nAcked-by: Li Zefan \u003clizefan@huawei.com\u003e\n" }, { "commit": "62cf20b32aee4ae889a2eb40fd41c0eab73de970", "tree": "a3bd7d28b380b0a3e52398542910027c6c8a92cb", "parents": [ "fc0830fe017d02b7b4995b5c402b484b65d9dfc6" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri May 25 14:08:57 2012 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri May 25 14:08:57 2012 +0200" }, "message": "tick: Move skew_tick option into the HIGH_RES_TIMER section\n\ncommit 5307c95 (tick: Add tick skew boot option) broke the\n!CONFIG_HIGH_RES_TIMERS build.\n\nMove the boot option parsing into the CONFIG_HIGH_RES_TIMERS section.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Mike Galbraith \u003cmgalbraith@suse.de\u003e\n" }, { "commit": "e5400321a6f15ce0fe77c8455954f213ef7dcc54", "tree": "4bd9bc61b44ec4e91f000d2d8968f4d1e66f080b", "parents": [ "5307c9556bc17e3cd26d4e94fc3b2565921834de" ], "author": { "name": "Magnus Damm", "email": "magnus.damm@gmail.com", "time": "Wed May 09 23:39:34 2012 +0900" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri May 25 01:44:51 2012 +0200" }, "message": "clockevents: Make clockevents_config() a global symbol\n\nMake clockevents_config() into a global symbol to allow it to be used\nby compiled-in clockevent drivers. This is needed by drivers that want\nto update the timer frequency after registration time.\n\nSigned-off-by: Magnus Damm \u003cdamm@opensource.se\u003e\nTested-by: Simon Horman \u003chorms@verge.net.au\u003e\nCc: arnd@arndb.de\nCc: johnstul@us.ibm.com\nCc: rjw@sisk.pl\nCc: lethal@linux-sh.org\nCc: gregkh@linuxfoundation.org\nCc: olof@lixom.net\nCc: Magnus Damm \u003cmagnus.damm@gmail.com\u003e\nLink: http://lkml.kernel.org/r/20120509143934.27521.46553.sendpatchset@w520\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "5307c9556bc17e3cd26d4e94fc3b2565921834de", "tree": "e51937060ccd5e293dec7246a7961b0ae5509a53", "parents": [ "ce004178be1bbaa292e9e6497939e2970300095a" ], "author": { "name": "Mike Galbraith", "email": "mgalbraith@suse.de", "time": "Tue May 08 12:20:58 2012 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri May 25 01:44:50 2012 +0200" }, "message": "tick: Add tick skew boot option\n\nLet the user decide whether power consumption or jitter is the\nmore important consideration for their machines.\n\nQuoting removal commit af5ab277ded04bd9bc6b048c5a2f0e7d70ef0867:\n\n\"Historically, Linux has tried to make the regular timer tick on the\n various CPUs not happen at the same time, to avoid contention on\n xtime_lock.\n \n Nowadays, with the tickless kernel, this contention no longer happens\n since time keeping and updating are done differently. In addition,\n this skew is actually hurting power consumption in a measurable way on\n many-core systems.\"\n\nProblems:\n\n- Contrary to the above, systems do encounter contention on both\n xtime_lock and RCU structure locks when the tick is synchronized.\n \n- Moderate sized RT systems suffer intolerable jitter due to the tick\n being synchronized.\n\n- SGI reports the same for their large systems.\n\n- Fully utilized systems reap no power saving benefit from skew removal,\n but do suffer from resulting induced lock contention.\n\n- 0209f649 rcu: limit rcu_node leaf-level fanout\n This patch was born to combat lock contention which testing showed\n to have been _induced by_ skew removal. Skew the tick, contention\n disappeared virtually completely.\n\nSigned-off-by: Mike Galbraith \u003cmgalbraith@suse.de\u003e\nLink: http://lkml.kernel.org/r/1336472458.21924.78.camel@marge.simpson.net\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n\n" }, { "commit": "07acfc2a9349a8ce45b236c2624dad452001966b", "tree": "c40f3eaac18a8320e65af220979223b5cd632b1b", "parents": [ "b5f4035adfffbcc6b478de5b8c44b618b3124aff", "322728e55aa7834e2fab2786b76df183c4843a12" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 16:17:30 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 16:17:30 2012 -0700" }, "message": "Merge branch \u0027next\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm\n\nPull KVM changes from Avi Kivity:\n \"Changes include additional instruction emulation, page-crossing MMIO,\n faster dirty logging, preventing the watchdog from killing a stopped\n guest, module autoload, a new MSI ABI, and some minor optimizations\n and fixes. Outside x86 we have a small s390 and a very large ppc\n update.\n\n Regarding the new (for kvm) rebaseless workflow, some of the patches\n that were merged before we switch trees had to be rebased, while\n others are true pulls. In either case the signoffs should be correct\n now.\"\n\nFix up trivial conflicts in Documentation/feature-removal-schedule.txt\narch/powerpc/kvm/book3s_segment.S and arch/x86/include/asm/kvm_para.h.\n\nI suspect the kvm_para.h resolution ends up doing the \"do I have cpuid\"\ncheck effectively twice (it was done differently in two different\ncommits), but better safe than sorry ;)\n\n* \u0027next\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm: (125 commits)\n KVM: make asm-generic/kvm_para.h have an ifdef __KERNEL__ block\n KVM: s390: onereg for timer related registers\n KVM: s390: epoch difference and TOD programmable field\n KVM: s390: KVM_GET/SET_ONEREG for s390\n KVM: s390: add capability indicating COW support\n KVM: Fix mmu_reload() clash with nested vmx event injection\n KVM: MMU: Don\u0027t use RCU for lockless shadow walking\n KVM: VMX: Optimize %ds, %es reload\n KVM: VMX: Fix %ds/%es clobber\n KVM: x86 emulator: convert bsf/bsr instructions to emulate_2op_SrcV_nobyte()\n KVM: VMX: unlike vmcs on fail path\n KVM: PPC: Emulator: clean up SPR reads and writes\n KVM: PPC: Emulator: clean up instruction parsing\n kvm/powerpc: Add new ioctl to retreive server MMU infos\n kvm/book3s: Make kernel emulated H_PUT_TCE available for \"PR\" KVM\n KVM: PPC: bookehv: Fix r8/r13 storing in level exception handler\n KVM: PPC: Book3S: Enable IRQs during exit handling\n KVM: PPC: Fix PR KVM on POWER7 bare metal\n KVM: PPC: Fix stbux emulation\n KVM: PPC: bookehv: Use lwz/stw instead of PPC_LL/PPC_STL for 32-bit fields\n ...\n" }, { "commit": "4a70d2d9909b43ed88043b98cabe2c7fbd563021", "tree": "380c5c2a4c2826b5275fae15eb91c78d8ead6467", "parents": [ "ee74d13229fb606353ff56f4927fa93b37e95bbe" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Thu May 24 20:41:00 2012 +0530" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu May 24 22:58:08 2012 +0200" }, "message": "smpboot, idle: Fix comment mismatch over idle_threads_init()\n\nThe comment over idle_threads_init() really talks about the functionality\nof idle_init(). Move that comment to idle_init(), and add a suitable\ncomment over idle_threads_init().\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nCc: suresh.b.siddha@intel.com\nCc: venki@google.com\nCc: nikunj@linux.vnet.ibm.com\nLink: http://lkml.kernel.org/r/20120524151100.2549.66501.stgit@srivatsabhat.in.ibm.com\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "ee74d13229fb606353ff56f4927fa93b37e95bbe", "tree": "6cfc806db818bdc739c5a46d41e2c81c96364463", "parents": [ "f9369910a6225b8d4892c3f20ae740a711cd5ace" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Thu May 24 20:40:55 2012 +0530" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu May 24 22:58:08 2012 +0200" }, "message": "smpboot, idle: Optimize calls to smp_processor_id() in idle_threads_init()\n\nWhile trying to initialize idle threads for all cpus, idle_threads_init()\ncalls smp_processor_id() in a loop, which is unnecessary. The intent\nis to initialize idle threads for all non-boot cpus. So just use a variable\nto note the boot cpu and use it in the loop.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nCc: suresh.b.siddha@intel.com\nCc: venki@google.com\nCc: nikunj@linux.vnet.ibm.com\nLink: http://lkml.kernel.org/r/20120524151055.2549.64309.stgit@srivatsabhat.in.ibm.com\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" } ], "next": "b343c8beec664ef6f0e9964d3001c7c7966331ae" }