Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Oleg Nesterov d30fda3551 posix-cpu-timers: avoid "task->signal != NULL" checks ... Preparation to make task->signal immutable, no functional changes. posix-cpu-timers.c checks task->signal != NULL to ensure this task is alive and didn't pass __exit_signal(). This is correct but we are going to change the lifetime rules for ->signal and never reset this pointer. Change the code to check ->sighand instead, it doesn't matter which pointer we check under tasklist, they both are cleared simultaneously. As Roland pointed out, some of these changes are not strictly needed and probably it makes sense to revert them later, when ->signal will be pinned to task_struct. But this patch tries to ensure the subsequent changes in fork/exit can't make any visible impact on posix cpu timers. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Roland McGrath <roland@redhat.com> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-05-27 09:12:46 -07:00
..
debug	x86, kgdb, init: Add early and late debug states	2010-05-20 21:04:29 -05:00
gcov
irq	genirq: Clear CPU mask in affinity_hint when none is provided	2010-05-12 11:23:34 +02:00
power	PM / Hibernate: Fix block_io.c printk warning	2010-05-10 23:08:18 +02:00
time	Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-05-19 17:11:10 -07:00
trace	Merge branch 'master' into for-2.6.35	2010-05-21 21:27:26 +02:00
.gitignore
acct.c	Merge branch 'next' into for-linus	2010-05-18 08:57:00 +10:00
async.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
audit.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
audit.h
audit_tree.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
audit_watch.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
auditfilter.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
auditsc.c	audit: preface audit printk with audit	2010-04-05 13:19:45 -07:00
backtracetest.c
bounds.c	kbuild: move bounds.h to include/generated	2009-12-12 13:08:14 +01:00
capability.c	sched: Remove remaining USER_SCHED code	2010-04-02 20:12:00 +02:00
cgroup.c	cgroups: make cftype.unregister_event() void-returning	2010-05-27 09:12:44 -07:00
cgroup_freezer.c	Freezer / cgroup freezer: Update stale locking comments	2010-05-10 23:18:47 +02:00
compat.c	cpumask: fix compat getaffinity	2010-05-19 11:48:18 -07:00
configs.c
cpu.c	mem-hotplug: fix potential race while building zonelist for new populated zone	2010-05-25 08:07:02 -07:00
cpuset.c	cpusets: new round-robin rotor for SLAB allocations	2010-05-27 09:12:44 -07:00
cred.c	umh: creds: kill subprocess_info->cred logic	2010-05-27 09:12:45 -07:00
delayacct.c
dma.c
early_res.c	x86: Do not free zero sized per cpu areas	2010-03-29 18:55:40 +02:00
elfcore.c	elf coredump: add extended numbering support	2010-03-06 11:26:46 -08:00
exec_domain.c
exit.c	exit: avoid sig->count in __exit_signal() to detect the group-dead case	2010-05-27 09:12:46 -07:00
extable.c
fork.c	cpusets: randomize node rotor used in cpuset_mem_spread_node()	2010-05-27 09:12:44 -07:00
freezer.c
futex.c	futex: Handle futex value corruption gracefully	2010-02-03 15:13:22 +01:00
futex_compat.c	futex: Protect pid lookup in compat code with RCU	2009-12-09 14:22:14 +01:00
groups.c	security: remove dead hook task_setgroups	2010-04-12 12:19:18 +10:00
hrtimer.c	hrtimers: Provide schedule_hrtimeout for CLOCK_REALTIME	2010-04-06 21:50:03 +02:00
hung_task.c	softlockup: Fix hung_task_check_count sysctl	2009-11-27 06:21:57 +01:00
hw_breakpoint.c	hw_breakpoints: Fix percpu build failure	2010-05-04 08:39:36 +02:00
itimer.c	itimers: Fix racy writes to cpu_itimer fields	2009-11-18 16:32:12 +01:00
kallsyms.c	kdb: core for kgdb back end (2 of 2)	2010-05-20 21:04:21 -05:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks	mutex: Better control mutex adaptive spinning config	2009-12-03 11:50:11 +01:00
Kconfig.preempt
kexec.c	kexec: fix OOPS in crash_kernel_shrink	2010-05-11 17:33:42 -07:00
kfifo.c	kfifo: Don't use integer as NULL pointer	2010-02-16 15:11:08 -08:00
kmod.c	call_usermodehelper: UMH_WAIT_EXEC ignores kernel_thread() failure	2010-05-27 09:12:45 -07:00
kprobes.c	kprobes: Move enable/disable_kprobe() out from debugfs code	2010-05-08 18:08:30 +02:00
ksysfs.c	sysfs: add struct file* to bin_attr callbacks	2010-05-21 09:37:31 -07:00
kthread.c	cpuset: fix the problem that cpuset_mem_spread_node() returns an offline node	2010-03-24 16:31:21 -07:00
latencytop.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
lockdep.c	lockdep: Add novalidate class for dev->mutex conversion	2010-05-21 09:37:30 -07:00
lockdep_internals.h	lockdep: No need to disable preemption in debug atomic ops	2010-05-04 05:38:16 +02:00
lockdep_proc.c	lockstat: Make lockstat counting per cpu	2010-04-06 00:15:37 +02:00
lockdep_states.h
Makefile	Move kernel/kgdb.c to kernel/debug/debug_core.c	2010-05-20 21:04:18 -05:00
module.c	Revert "module: drop the lock while waiting for module to complete initialization."	2010-05-25 16:48:30 -07:00
mutex-debug.c
mutex-debug.h	locking: Implement new raw_spinlock	2009-12-14 23:55:32 +01:00
mutex.c	mutex: Better control mutex adaptive spinning config	2009-12-03 11:50:11 +01:00
mutex.h
notifier.c	sched: Use lockdep-based checking on rcu_dereference()	2010-02-25 10:34:26 +01:00
ns_cgroup.c
nsproxy.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
padata.c	padata: Use get_online_cpus/put_online_cpus in padata_free	2010-05-19 13:45:35 +10:00
panic.c	panic: Add taint flag TAINT_FIRMWARE_WORKAROUND ('I')	2010-05-19 08:37:43 +01:00
params.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-03-12 16:04:50 -08:00
perf_event.c	perf: Fix exit() vs event-groups	2010-05-11 17:08:24 +02:00
pid.c	Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-03-13 14:43:01 -08:00
pid_namespace.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
pm_qos_params.c	PM: PM QOS update fix	2010-05-17 00:21:03 +02:00
posix-cpu-timers.c	posix-cpu-timers: avoid "task->signal != NULL" checks	2010-05-27 09:12:46 -07:00
posix-timers.c	posix-timers.c: Don't export local functions	2010-02-05 14:54:10 +01:00
printk.c	printk,kdb: capture printk() when in kdb shell	2010-05-20 21:04:27 -05:00
profile.c	profile: fix stats and data leakage	2010-05-14 19:45:06 -07:00
ptrace.c	ptrace: PTRACE_GETFDPIC: fix the unsafe usage of child->mm	2010-05-27 09:12:44 -07:00
range.c	x86: Change range end to start+size	2010-02-10 17:47:17 -08:00
rcupdate.c	rcu: slim down rcutiny by removing rcu_scheduler_active and friends	2010-05-10 11:08:34 -07:00
rcutiny.c	rcu: remove all rcu head initializations, except on_stack initializations	2010-05-11 16:10:47 -07:00
rcutiny_plugin.h	rcu: slim down rcutiny by removing rcu_scheduler_active and friends	2010-05-10 11:08:34 -07:00
rcutorture.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-05-18 08:27:54 -07:00
rcutree.c	rcu: remove all rcu head initializations, except on_stack initializations	2010-05-11 16:10:47 -07:00
rcutree.h	rcu: reduce the number of spurious RCU_SOFTIRQ invocations	2010-05-10 11:08:35 -07:00
rcutree_plugin.h	rcu: remove all rcu head initializations, except on_stack initializations	2010-05-11 16:10:47 -07:00
rcutree_trace.c	rcu: reduce the number of spurious RCU_SOFTIRQ invocations	2010-05-10 11:08:35 -07:00
relay.c	pipe: add support for shrinking and growing pipes	2010-05-21 21:12:40 +02:00
res_counter.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
resource.c	resource: shared I/O region support	2010-05-11 12:01:10 -07:00
rtmutex-debug.c	sched: Convert pi_lock to raw_spinlock	2009-12-14 23:55:33 +01:00
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c	rtmutes: Convert rtmutex.lock to raw_spinlock	2009-12-14 23:55:33 +01:00
rtmutex.h
rtmutex_common.h
rwsem.c
sched.c	Merge branch 'kdb-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb	2010-05-21 11:08:05 -07:00
sched_clock.c	blkio: fix for modular blk-cgroup build	2010-04-15 08:54:59 +02:00
sched_cpupri.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
sched_cpupri.h	sched: Convert cpupri lock to raw_spinlock	2009-12-14 23:55:33 +01:00
sched_debug.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-05-18 08:27:54 -07:00
sched_fair.c	sched: replace migration_thread with cpu_stop	2010-05-06 18:49:21 +02:00
sched_features.h	sched: Remove ASYM_GRAN feature	2010-03-11 18:32:53 +01:00
sched_idletask.c	sched: Cure load average vs NO_HZ woes	2010-04-23 11:02:02 +02:00
sched_rt.c	sched: Add enqueue/dequeue flags	2010-04-02 20:12:05 +02:00
sched_stats.h
seccomp.c
semaphore.c
signal.c	exit: change zap_other_threads() to count sub-threads	2010-05-27 09:12:46 -07:00
slow-work-debugfs.c	SLOW_WORK: Move slow_work's proc file to debugfs	2009-12-01 08:20:31 -08:00
slow-work.c	slow-work: use get_ref wrapper instead of directly calling get_ref	2010-03-29 09:13:30 -07:00
slow-work.h	SLOW_WORK: CONFIG_SLOW_WORK_PROC should be CONFIG_SLOW_WORK_DEBUG	2010-03-29 09:14:47 -07:00
smp.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
softirq.c	rcu: refactor RCU's context-switch handling	2010-05-10 11:08:33 -07:00
softlockup.c	softlockup: Stop spurious softlockup messages due to overflow	2010-03-21 19:30:13 +01:00
spinlock.c	locking: Cleanup the name space completely	2009-12-14 23:55:33 +01:00
srcu.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
stacktrace.c
stop_machine.c	stop_machine: Move local variable closer to the usage site in cpu_stop_cpu_callback()	2010-05-18 00:17:44 +02:00
sys.c	kmod: add init function to usermodehelper	2010-05-27 09:12:44 -07:00
sys_ni.c	Add generic sys_ipc wrapper	2010-03-12 15:52:32 -08:00
sysctl.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2010-05-25 16:59:51 -07:00
sysctl_binary.c	sysctl: don't use own implementation of hex_to_bin()	2010-05-25 08:07:05 -07:00
sysctl_check.c	ipv4 05/05: add sysctl to accept packets with local source addresses	2009-12-03 12:14:38 -08:00
taskstats.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
test_kprobes.c
time.c	timekeeping: Fix timezone update	2010-05-24 11:50:38 +02:00
timeconst.pl
timer.c	timers: Fix slack calculation for expired timers	2010-05-24 12:10:23 +02:00
tracepoint.c
tsacct.c	mm: clean up mm_counter	2010-03-06 11:26:23 -08:00
uid16.c
up.c
user-return-notifier.c	core: Clean up user return notifers use of per_cpu	2009-12-02 10:22:59 +01:00
user.c	sched: Remove a stale comment	2010-05-10 08:48:39 +02:00
user_namespace.c	kref: remove kref_set	2010-05-21 09:37:29 -07:00
utsname.c
utsname_sysctl.c	sysctl kernel: Remove binary sysctl logic	2009-11-12 02:04:55 -08:00
wait.c
workqueue.c	workqueue: change cancel_work_sync() to clear work->data	2010-04-30 08:57:25 +02:00