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| author | Oleg Nesterov <oleg@redhat.com> | 2010-05-26 14:43:20 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-27 09:12:46 -0700 |
| commit | 97101eb41d0d3c97543878ce40e0b8a8b2747ed7 (patch) | |
| tree | d33299c8d4787d3b578ea432fdaceb965a2acd97 /kernel | |
| parent | a705be6b5e8b05f2ae51536ec709de921960326c (diff) | |
| download | lwn-97101eb41d0d3c97543878ce40e0b8a8b2747ed7.tar.gz lwn-97101eb41d0d3c97543878ce40e0b8a8b2747ed7.zip | |
exit: move taskstats_tgid_free() from __exit_signal() to free_signal_struct()
Move taskstats_tgid_free() from __exit_signal() to free_signal_struct().
This way signal->stats never points to nowhere and we can read ->stats
lockless.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Veaceslav Falico <vfalico@redhat.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/exit.c | 1 | ||||
| -rw-r--r-- | kernel/fork.c | 1 |
2 files changed, 1 insertions, 1 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index 3602f468e3a0..357d443d5a00 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -144,7 +144,6 @@ static void __exit_signal(struct task_struct *tsk) clear_tsk_thread_flag(tsk,TIF_SIGPENDING); if (group_dead) { flush_sigqueue(&sig->shared_pending); - taskstats_tgid_free(sig); tty_kref_put(tty); } } diff --git a/kernel/fork.c b/kernel/fork.c index 58f8611b1ac6..7701470ea1b8 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -167,6 +167,7 @@ EXPORT_SYMBOL(free_task); static inline void free_signal_struct(struct signal_struct *sig) { + taskstats_tgid_free(sig); kmem_cache_free(signal_cachep, sig); } |