summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
authorSamuel Thibault <samuel.thibault@labri.fr>2005-05-21 17:50:15 +0200
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-21 10:46:48 -0700
commit10f02d1c59e55f529140dda3a92f0099d748451c (patch)
tree6b5a5804503401624171aff65b09ff022a9f0103 /drivers
parent9636273dae265b9354b861b373cd43cd76a6d0fe (diff)
downloadop-kernel-dev-10f02d1c59e55f529140dda3a92f0099d748451c.zip
op-kernel-dev-10f02d1c59e55f529140dda3a92f0099d748451c.tar.gz
[PATCH] spin_unlock_bh() and preempt_check_resched()
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>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud