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| author | Ingo Molnar <mingo@elte.hu> | 2008-11-19 09:44:37 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-19 09:44:37 +0100 |
| commit | 3ac3ba0b396fd99550e08034b0e4c27fdf39c252 (patch) | |
| tree | f9f69fac41d66540a37a33808714d055d702328f /kernel/posix-cpu-timers.c | |
| parent | 934352f214b3251eb0793c1209d346595a661d80 (diff) | |
| parent | 7f0f598a0069d1ab072375965a4b69137233169c (diff) | |
| download | op-kernel-dev-3ac3ba0b396fd99550e08034b0e4c27fdf39c252.zip op-kernel-dev-3ac3ba0b396fd99550e08034b0e4c27fdf39c252.tar.gz | |
Merge branch 'linus' into sched/core
Conflicts:
kernel/Makefile
Diffstat (limited to 'kernel/posix-cpu-timers.c')
| -rw-r--r-- | kernel/posix-cpu-timers.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c index 153dcb2..895337b 100644 --- a/kernel/posix-cpu-timers.c +++ b/kernel/posix-cpu-timers.c @@ -1308,9 +1308,10 @@ static inline int task_cputime_expired(const struct task_cputime *sample, */ static inline int fastpath_timer_check(struct task_struct *tsk) { - struct signal_struct *sig = tsk->signal; + struct signal_struct *sig; - if (unlikely(!sig)) + /* tsk == current, ensure it is safe to use ->signal/sighand */ + if (unlikely(tsk->exit_state)) return 0; if (!task_cputime_zero(&tsk->cputime_expires)) { @@ -1323,6 +1324,8 @@ static inline int fastpath_timer_check(struct task_struct *tsk) if (task_cputime_expired(&task_sample, &tsk->cputime_expires)) return 1; } + + sig = tsk->signal; if (!task_cputime_zero(&sig->cputime_expires)) { struct task_cputime group_sample; |
