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authorIngo Molnar <mingo@elte.hu>2008-07-08 10:32:56 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-08 10:32:56 +0200
commit896395c290f902576270d84291c1f7f8bfbe339d (patch)
tree650114bff3a5f808ee1d713ecc443b0eaab2e1c3 /kernel/exit.c
parentaf1cf204ba2fd8135933a2e4df523fb1112dc0e2 (diff)
parent1b40a895df6c7d5a80e71f65674060b03d84bbef (diff)
downloadop-kernel-dev-896395c290f902576270d84291c1f7f8bfbe339d.zip
op-kernel-dev-896395c290f902576270d84291c1f7f8bfbe339d.tar.gz
Merge branch 'linus' into tmp.x86.mpparse.new
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);
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