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Commit 03f890f8 authored by Nikanth Karthikesan's avatar Nikanth Karthikesan Committed by Linus Torvalds
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/proc/pid/pagemap: document in Documentation/filesystems/proc.txt 



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

Signed-off-by: default avatarNikanth Karthikesan <knikanth@suse.de>
Cc: Richard Guenther <rguenther@suse.de>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: default avatarMatt Mackall <mpm@selenic.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b40d4f84

Documentation/filesystems/proc.txt

+4 −0
Original line number Diff line number Diff line
@@ -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

---------------