Commit 676ff453 authored by KAMEZAWA Hiroyuki's avatar KAMEZAWA Hiroyuki Committed by Linus Torvalds
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[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: default avatarKAMEZAWA Hiroyuki <>
Acked-by: default avatarAndi Kleen <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 5e85d4ab
......@@ -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)
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