redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

[PATCH] for_each_possible_cpu: x86_64

Browse source 
for_each_cpu() actually iterates across all possible CPUs.  We've had
mistakes in the past where people were using for_each_cpu() where they
should have been iterating across only online or present CPUs.  This is
inefficient and possibly buggy.

We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this
in the future.

This patch replaces for_each_cpu with for_each_possible_cpu.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
KAMEZAWA Hiroyuki 2006-04-18 22:20:21 -07:00 committed by Linus Torvalds
parent 5e85d4abe3
commit 676ff453e5
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
include/asm-x86_64/percpu.h
View file

@ -26,7 +26,7 @@
#define percpu_modcopy(pcpudst, src, size) \
do { \
unsigned int __i; \
for_each_cpu(__i) \
for_each_possible_cpu(__i) \
memcpy((pcpudst)+__per_cpu_offset(__i), \
(src), (size)); \
} while (0)