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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-30 23:53:32 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-30 23:53:32 +0200 |
| commit | 65fb0d23fcddd8697c871047b700c78817bdaa43 (patch) | |
| tree | 119e6e5f276622c4c862f6c9b6d795264ba1603a /kernel/signal.c | |
| parent | 8c083f081d0014057901c68a0a3e0f8ca7ac8d23 (diff) | |
| parent | dfbbe89e197a77f2c8046a51c74e33e35f878080 (diff) | |
Merge branch 'linus' into cpumask-for-linus
Conflicts:
arch/x86/kernel/cpu/common.c
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index 2a74fe87c0d..1c8814481a1 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1575,7 +1575,15 @@ static void ptrace_stop(int exit_code, int clear_code, siginfo_t *info) read_lock(&tasklist_lock); if (may_ptrace_stop()) { do_notify_parent_cldstop(current, CLD_TRAPPED); + /* + * Don't want to allow preemption here, because + * sys_ptrace() needs this task to be inactive. + * + * XXX: implement read_unlock_no_resched(). + */ + preempt_disable(); read_unlock(&tasklist_lock); + preempt_enable_no_resched(); schedule(); } else { /* |