Revision 10f02d1c59e55f529140dda3a92f0099d748451c authored by Samuel Thibault on 21 May 2005, 15:50:15 UTC, committed by Linus Torvalds on 21 May 2005, 17:46:48 UTC
In _spin_unlock_bh(lock):
do { \
_raw_spin_unlock(lock); \
preempt_enable(); \
local_bh_enable(); \
__release(lock); \
} while (0)
there is no reason for using preempt_enable() instead of a simple
preempt_enable_no_resched()
Since we know bottom halves are disabled, preempt_schedule() will always
return at once (preempt_count!=0), and hence preempt_check_resched() is
useless here...
This fixes it by using "preempt_enable_no_resched()" instead of the
"preempt_enable()", and thus avoids the useless preempt_check_resched()
just before re-enabling bottom halves.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 parent 9636273
| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 237 bytes |
| compat.c | -rw-r--r-- | 17.3 KB |
| compat_mq.c | -rw-r--r-- | 4.0 KB |
| mqueue.c | -rw-r--r-- | 29.1 KB |
| msg.c | -rw-r--r-- | 18.9 KB |
| msgutil.c | -rw-r--r-- | 2.4 KB |
| sem.c | -rw-r--r-- | 33.7 KB |
| shm.c | -rw-r--r-- | 21.3 KB |
| util.c | -rw-r--r-- | 13.2 KB |
| util.h | -rw-r--r-- | 2.3 KB |
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