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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-28 23:24:12 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-28 23:24:12 +0100 |
| commit | d00ab2fdd4dc4361c97777bc1fef7234329d4659 (patch) | |
| tree | b8d8f98c1af633bbc1570b4270b39727737beebf /kernel/signal.c | |
| parent | 88f502fedba82eff252b6420e8b8328e4ae25c67 (diff) | |
| parent | 7c730ccdc1188b97f5c8cb690906242c7ed75c22 (diff) | |
Merge branch 'linus' into core/futexes
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 { /* |