AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-01-18 09:56:18 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

sched/preempt/x86: Fix voluntary preempt for x86

Browse Source 
The #ifdef CONFIG_PREEMPT is both not needed and wrong.

Its not required because asm/preempt.h should provide
{set,clear}_preempt_need_resched() regardless and its wrong because
for voluntary preempt we still rely on PREEMPT_NEED_RESCHED.

Reported-and-Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Fixes: 8cb75e0c4e ("sched/preempt: Fix up missed PREEMPT_NEED_RESCHED folding")
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Dipankar Sarma <dipankar@in.ibm.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20140122102435.GH31570@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra 2014-01-22 11:24:35 +01:00 committed by Ingo Molnar
parent 9390675af0
commit 215393bc1f
1 changed files with 0 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/linux/preempt.h
View File

@ -134,7 +134,6 @@ do { \
#undef preempt_check_resched
#endif
#ifdef CONFIG_PREEMPT
#define preempt_set_need_resched() \
do { \
set_preempt_need_resched(); \
@ -144,10 +143,6 @@ do { \
if (tif_need_resched()) \
set_preempt_need_resched(); \
} while (0)
#else
#define preempt_set_need_resched() do { } while (0)
#define preempt_fold_need_resched() do { } while (0)
#endif
#ifdef CONFIG_PREEMPT_NOTIFIERS