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Commit 3c30a752 authored by KAMEZAWA Hiroyuki's avatar KAMEZAWA Hiroyuki Committed by Linus Torvalds
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[PATCH] for_each_possible_cpu: documentaion 



Replace for_each_cpu with for_each_possible_cpu.

Modifies occurences in documentaion.

for_each_cpu in whatisRCU.txt should be for_each_online_cpu ???
(I'm not sure..)

Signed-off-by: default avatarKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent c8912599

Documentation/RCU/whatisRCU.txt

+1 −1
Original line number Diff line number Diff line
@@ -605,7 +605,7 @@ are the same as those shown in the preceding section, so they are omitted. 
	{

		int cpu;



		for_each_cpu(cpu)

		for_each_possible_cpu(cpu)

			run_on(cpu);

	}

Documentation/cpu-hotplug.txt

+2 −2
Original line number Diff line number Diff line
@@ -97,13 +97,13 @@ at which time hotplug is disabled. 


You really dont need to manipulate any of the system cpu maps. They should

be read-only for most use. When setting up per-cpu resources almost always use

cpu_possible_map/for_each_cpu() to iterate.

cpu_possible_map/for_each_possible_cpu() to iterate.



Never use anything other than cpumask_t to represent bitmap of CPUs.



#include <linux/cpumask.h>



for_each_cpu              - Iterate over cpu_possible_map

for_each_possible_cpu     - Iterate over cpu_possible_map

for_each_online_cpu       - Iterate over cpu_online_map

for_each_present_cpu      - Iterate over cpu_present_map

for_each_cpu_mask(x,mask) - Iterate over some random collection of cpu mask.