diff options
| author | David S. Miller <davem@davemloft.net> | 2008-11-18 23:38:23 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-11-18 23:38:23 -0800 |
| commit | 198d6ba4d7f48c94f990f4604f0b3d73925e0ded (patch) | |
| tree | 56bbdf8ba2553c23c8099da9344a8f1d1aba97ab /kernel/posix-cpu-timers.c | |
| parent | 9a57f7fabd383920585ed8b74eacd117c6551f2d (diff) | |
| parent | 7f0f598a0069d1ab072375965a4b69137233169c (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/isdn/i4l/isdn_net.c
fs/cifs/connect.c
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 153dcb2639c3..895337b16a24 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; |