The patch titled
signals: do_signal_stop(): use signal_group_exit()
has been added to the -mm tree. Its filename is
signals-do_signal_stop-use-signal_group_exit.patch
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------------------------------------------------------
Subject: signals: do_signal_stop(): use signal_group_exit()
From: Oleg Nesterov <oleg@xxxxxxxxxx>
do_signal_stop() needs signal_group_exit() but checks sig->group_exit_task.
This (optimization) is correct, SIGNAL_STOP_DEQUEUED and SIGNAL_GROUP_EXIT
are mutually exclusive, but looks confusing. Use signal_group_exit(), this
is not fastpath, the code clarity is more important.
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Roland McGrath <roland@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/signal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/signal.c~signals-do_signal_stop-use-signal_group_exit kernel/signal.c
--- a/kernel/signal.c~signals-do_signal_stop-use-signal_group_exit
+++ a/kernel/signal.c
@@ -1711,7 +1711,7 @@ static int do_signal_stop(int signr)
struct task_struct *t;
if (!likely(sig->flags & SIGNAL_STOP_DEQUEUED) ||
- unlikely(sig->group_exit_task))
+ unlikely(signal_group_exit(sig)))
return 0;
/*
* There is no group stop already in progress.
_
Patches currently in -mm which might be from oleg@xxxxxxxxxx are
remove-unused-variable-from-send_signal.patch
turn-legacy_queue-macro-into-static-inline-function.patch
consolidate-checking-for-ignored-legacy-signals.patch
consolidate-checking-for-ignored-legacy-signals-simplify.patch
signals-do_signal_stop-use-signal_group_exit.patch
procfs-task-exe-symlink.patch
procfs-task-exe-symlink-fix.patch
-
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