Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3ae4cbadf4bf97ee137b921a1b928d2a5dcd26ca
Commit: 3ae4cbadf4bf97ee137b921a1b928d2a5dcd26ca
Parent: 2f4e6e2a814eb1305a873a045401708d73f870bc
Author: Oleg Nesterov <[EMAIL PROTECTED]>
AuthorDate: Tue Oct 16 23:26:58 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Wed Oct 17 08:42:51 2007 -0700
exit_notify: don't take tasklist for TIF_SIGPENDING re-targeting
->siglock provides enough protection to iterate over the thread group.
Signed-off-by: Oleg Nesterov <[EMAIL PROTECTED]>
Acked-by: Roland McGrath <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
kernel/exit.c | 5 +----
1 files changed, 1 insertions(+), 4 deletions(-)
diff --git a/kernel/exit.c b/kernel/exit.c
index b4d5696..28144b9 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -747,13 +747,11 @@ static void exit_notify(struct task_struct *tsk)
* Now we'll wake all the threads in the group just to make
* sure someone gets all the pending signals.
*/
- read_lock(&tasklist_lock);
spin_lock_irq(&tsk->sighand->siglock);
for (t = next_thread(tsk); t != tsk; t = next_thread(t))
if (!signal_pending(t) && !(t->flags & PF_EXITING))
recalc_sigpending_and_wake(t);
spin_unlock_irq(&tsk->sighand->siglock);
- read_unlock(&tasklist_lock);
}
write_lock_irq(&tasklist_lock);
@@ -781,9 +779,8 @@ static void exit_notify(struct task_struct *tsk)
* and we were the only connection outside, so our pgrp
* is about to become orphaned.
*/
-
t = tsk->real_parent;
-
+
pgrp = task_pgrp(tsk);
if ((task_pgrp(t) != pgrp) &&
(task_session(t) == task_session(tsk)) &&
-
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