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/proc/pid/pagemap: document in Documentation/filesystems/proc.txt

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Document /proc/pid/pagemap in Documentation/filesystems/proc.txt

Signed-off-by: Nikanth Karthikesan <[email protected]>
Cc: Richard Guenther <[email protected]>
Cc: Balbir Singh <[email protected]>
Cc: KOSAKI Motohiro <[email protected]>
Acked-by: Matt Mackall <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Nikanth Karthikesan 2010-10-27 15:34:11 -07:00 • committed by Linus Torvalds
commit 03f890f8c2
1 changed files with 4 additions and 0 deletions
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Documentation/filesystems/proc.txt
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@ -136,6 +136,7 @@ Table 1-1: Process specific entries in /proc
statm Process memory status information
status Process status in human readable form
wchan If CONFIG_KALLSYMS is set, a pre-decoded wchan
pagemap Page table
stack Report full stack trace, enable via CONFIG_STACKTRACE
smaps a extension based on maps, showing the memory consumption of
each mapping
@ -404,6 +405,9 @@ To clear the bits for the file mapped pages associated with the process
> echo 3 > /proc/PID/clear_refs
Any other value written to /proc/PID/clear_refs will have no effect.
The /proc/pid/pagemap gives the PFN, which can be used to find the pageflags
using /proc/kpageflags and number of times a page is mapped using
/proc/kpagecount. For detailed explanation, see Documentation/vm/pagemap.txt.
1.2 Kernel data
---------------