korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-13 22:56:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

locking/lockdep: Remove hard coded array size dependency

Browse Source 
An apparent oversight left a hardcoded '4' in place when
LOCKSTAT_POINTS was introduced.

The contention_point[] and contending_point[] arrays in the
structs lock_class and lock_class_stats need to be the same
size for the loops in lock_stats() to be correct.

This patch allows LOCKSTAT_POINTS to be changed without
affecting the correctness of the code.

Signed-off-by: George Beshers <gbeshers@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
George Beshers 2015-06-18 10:25:13 -05:00 committed by Ingo Molnar
parent 405963b6a5
commit 68722101ec
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/lockdep.h
View File

@ -130,8 +130,8 @@ enum bounce_type {
};
struct lock_class_stats {
unsigned long contention_point[4];
unsigned long contending_point[4];
unsigned long contention_point[LOCKSTAT_POINTS];
unsigned long contending_point[LOCKSTAT_POINTS];
struct lock_time read_waittime;
struct lock_time write_waittime;
struct lock_time read_holdtime;