GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-21 14:11:20 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

sched: Introduce preempt_count accessor functions

Browse source 
Replace the single preempt_count() 'function' that's an lvalue with
two proper functions:

 preempt_count() - returns the preempt_count value as rvalue
 preempt_count_set() - Allows setting the preempt-count value

Also provide preempt_count_ptr() as a convenience wrapper to implement
all modifying operations.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-orxrbycjozopqfhb4dxdkdvb@git.kernel.org
[ Fixed build failure. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra 2013-08-14 14:55:24 +02:00 • committed by Ingo Molnar
parent ea81174789
commit 4a2b4b2227
7 changed files with 30 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

2
lib/locking-selftest.c
View file

@ -1002,7 +1002,7 @@ static void dotest(void (*testcase_fn)(void), int expected, int lockclass_mask)
* Some tests (e.g. double-unlock) might corrupt the preemption
* count, so restore it:
*/
preempt_count() = saved_preempt_count;
preempt_count_set(saved_preempt_count);
#ifdef CONFIG_TRACE_IRQFLAGS
if (softirq_count())
current->softirqs_enabled = 0;