diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2013-09-10 12:15:23 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-09-25 14:07:54 +0200 |
| commit | bdb43806589096ac4272fe1307e789846ac08d7c (patch) | |
| tree | c854e7e508193766d5cbdd82e8709cfab5ea3be5 /include/linux/uaccess.h | |
| parent | 01028747559ac6c6f642a7bbd2875cc4f66b2feb (diff) | |
sched: Extract the basic add/sub preempt_count modifiers
Rewrite the preempt_count macros in order to extract the 3 basic
preempt_count value modifiers:
__preempt_count_add()
__preempt_count_sub()
and the new:
__preempt_count_dec_and_test()
And since we're at it anyway, replace the unconventional
$op_preempt_count names with the more conventional preempt_count_$op.
Since these basic operators are equivalent to the previous _notrace()
variants, do away with the _notrace() versions.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-ewbpdbupy9xpsjhg960zwbv8@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/uaccess.h')
| -rw-r--r-- | include/linux/uaccess.h | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index 5ca0951e1855..9d8cf056e661 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -15,7 +15,7 @@ */ static inline void pagefault_disable(void) { - inc_preempt_count(); + preempt_count_inc(); /* * make sure to have issued the store before a pagefault * can hit. @@ -30,11 +30,7 @@ static inline void pagefault_enable(void) * the pagefault handler again. */ barrier(); - dec_preempt_count(); - /* - * make sure we do.. - */ - barrier(); + preempt_count_dec(); preempt_check_resched(); } |