diff options
| author | Ingo Molnar <mingo@elte.hu> | 2006-01-08 04:01:37 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-08 23:13:40 -0500 |
| commit | e56d090310d7625ecb43a1eeebd479f04affb48b (patch) | |
| tree | 2f479215dff4a2d8f3a9ed85200a5bc4f51534be /kernel/exit.c | |
| parent | 4369ef3c3e9d3bd9b879580678778f558d481e90 (diff) | |
[PATCH] RCU signal handling
RCU tasklist_lock and RCU signal handling: send signals RCU-read-locked
instead of tasklist_lock read-locked. This is a scalability improvement on
SMP and a preemption-latency improvement under PREEMPT_RCU.
Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: William Irwin <wli@holomorphy.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/exit.c')
| -rw-r--r-- | kernel/exit.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index ee515683b92d..c73a7eb26de3 100644 --- a/kernel/exit.c +++ b/kernel/exit.c | |||
| @@ -72,7 +72,6 @@ repeat: | |||
| 72 | __ptrace_unlink(p); | 72 | __ptrace_unlink(p); |
| 73 | BUG_ON(!list_empty(&p->ptrace_list) || !list_empty(&p->ptrace_children)); | 73 | BUG_ON(!list_empty(&p->ptrace_list) || !list_empty(&p->ptrace_children)); |
| 74 | __exit_signal(p); | 74 | __exit_signal(p); |
| 75 | __exit_sighand(p); | ||
| 76 | /* | 75 | /* |
| 77 | * Note that the fastpath in sys_times depends on __exit_signal having | 76 | * Note that the fastpath in sys_times depends on __exit_signal having |
| 78 | * updated the counters before a task is removed from the tasklist of | 77 | * updated the counters before a task is removed from the tasklist of |