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/rcupdate.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/rcupdate.c')
| -rw-r--r-- | kernel/rcupdate.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c index c9afc61240e4..0a669bd2f6d1 100644 --- a/kernel/rcupdate.c +++ b/kernel/rcupdate.c | |||
| @@ -35,6 +35,7 @@ | |||
| 35 | #include <linux/init.h> | 35 | #include <linux/init.h> |
| 36 | #include <linux/spinlock.h> | 36 | #include <linux/spinlock.h> |
| 37 | #include <linux/smp.h> | 37 | #include <linux/smp.h> |
| 38 | #include <linux/rcupdate.h> | ||
| 38 | #include <linux/interrupt.h> | 39 | #include <linux/interrupt.h> |
| 39 | #include <linux/sched.h> | 40 | #include <linux/sched.h> |
| 40 | #include <asm/atomic.h> | 41 | #include <asm/atomic.h> |