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authorIngo Molnar <mingo@elte.hu>2008-07-10 06:17:14 (GMT)
committerIngo Molnar <mingo@elte.hu>2008-07-10 06:17:14 (GMT)
commit9e4144abf8a30ae221311368bbb10690ebdb4b76 (patch)
tree032289d5b7d87976675c1a1a32d512a44d234fa2 /kernel/exit.c
parente17ba73b0ee6c0f24393c48b455e0d8db761782c (diff)
parent6329d3021bcfa9038621e6e917d98929421d8ec8 (diff)
downloadlinux-9e4144abf8a30ae221311368bbb10690ebdb4b76.tar.xz
Merge branch 'linus' into core/printk
Conflicts: kernel/printk.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/exit.c')
-rw-r--r--kernel/exit.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 1510f78..8f6185e 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -126,6 +126,12 @@ static void __exit_signal(struct task_struct *tsk)
__unhash_process(tsk);
+ /*
+ * Do this under ->siglock, we can race with another thread
+ * doing sigqueue_free() if we have SIGQUEUE_PREALLOC signals.
+ */
+ flush_sigqueue(&tsk->pending);
+
tsk->signal = NULL;
tsk->sighand = NULL;
spin_unlock(&sighand->siglock);
@@ -133,7 +139,6 @@ static void __exit_signal(struct task_struct *tsk)
__cleanup_sighand(sighand);
clear_tsk_thread_flag(tsk,TIF_SIGPENDING);
- flush_sigqueue(&tsk->pending);
if (sig) {
flush_sigqueue(&sig->shared_pending);
taskstats_tgid_free(sig);