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| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2006-04-18 22:20:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-19 09:13:49 -0700 |
| commit | 676ff453e58c5ff7ddbfebf5a11142e3e4add161 (patch) | |
| tree | 73dd2d5fa0baa38be1357947b0a90b013b14115f | |
| parent | 5e85d4abe3f43bb5362f384bab0e20ef082ce0b5 (diff) | |
| download | op-kernel-dev-676ff453e58c5ff7ddbfebf5a11142e3e4add161.zip op-kernel-dev-676ff453e58c5ff7ddbfebf5a11142e3e4add161.tar.gz | |
[PATCH] for_each_possible_cpu: x86_64
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>
| -rw-r--r-- | include/asm-x86_64/percpu.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86_64/percpu.h b/include/asm-x86_64/percpu.h index 4405b4a..7f33aaf 100644 --- a/include/asm-x86_64/percpu.h +++ b/include/asm-x86_64/percpu.h @@ -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) |
