apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

perf_counter: Solve the rotate_ctx vs inherit race differently

Browse Source 
Instead of disabling RR scheduling of the counters, use a different list
that does not get rotated to iterate the counters on inheritance.

[ Impact: cleanup, optimization ]

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <20090520102553.237504544@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra
2009-05-20 12:21:19 +02:00
committed by Ingo Molnar
parent c44d70a340
commit d7b629a34f
2 changed files with 5 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/linux/perf_counter.h
-1
View File
@@ -508,7 +508,6 @@ struct perf_counter_context {
int nr_counters;
int nr_active;
int is_active;
int rr_allowed;
struct task_struct *task;
/*