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authorMatt Fleming <matt.fleming@intel.com>2012-03-21 16:33:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-21 17:54:55 -0700
commitff6d21e7aafe3cf4b20697f67e656caa4daef40b (patch)
tree9a2a0060088f1b97533c21dfaafdfaca1794873e /arch/xtensa
parentfa47ac59020e91082386f65a01f3e8cc6116ef95 (diff)
downloadlinux-ff6d21e7aafe3cf4b20697f67e656caa4daef40b.tar.bz2
xtensa: no need to reset handler if SA_ONESHOT
get_signal_to_deliver() already resets the signal handler if SA_ONESHOT is set in ka->sa.sa_flags, there's no need to do it again in handle_signal(). Furthermore, because we were modifying ka->sa.sa_handler (which is a copy of sighand->action[]) instead of sighand->action[] the original code actually had no effect on signal delivery. Acked-by: Oleg Nesterov <oleg@redhat.com> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Matt Fleming <matt.fleming@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/xtensa')
-rw-r--r--arch/xtensa/kernel/signal.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index 4f53770c42ec..24655e31d8fb 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -536,9 +536,6 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
/* Set up the stack frame */
setup_frame(signr, &ka, &info, oldset, regs);
- if (ka.sa.sa_flags & SA_ONESHOT)
- ka.sa.sa_handler = SIG_DFL;
-
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked, &current->blocked, &ka.sa.sa_mask);
if (!(ka.sa.sa_flags & SA_NODEFER))