Messages in this thread | | | Date | Wed, 24 Apr 2013 01:49:45 -0500 | From | Rob Landley <> | Subject | Re: [PATCH v2 6/6] add documentation on proc.txt |
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On 04/23/2013 08:41:04 PM, Minchan Kim wrote: > This patch adds stuff about new reclaim field in proc.txt > > Cc: Rob Landley <rob@landley.net> > Signed-off-by: Minchan Kim <minchan@kernel.org> > --- > > Rob, I didn't add your Acked-by because interface was slight changed. > I hope you give Acke-by after review again. > Thanks. > > Documentation/filesystems/proc.txt | 22 ++++++++++++++++++++++ > mm/Kconfig | 7 +------ > 2 files changed, 23 insertions(+), 6 deletions(-) > > diff --git a/Documentation/filesystems/proc.txt > b/Documentation/filesystems/proc.txt > index 488c094..1411ad0 100644 > --- a/Documentation/filesystems/proc.txt > +++ b/Documentation/filesystems/proc.txt > @@ -136,6 +136,7 @@ Table 1-1: Process specific entries in /proc > maps Memory maps to executables and library files > (2.4) > mem Memory held by this process > root Link to the root directory of this process > + reclaim Reclaim pages in this process > stat Process status > statm Process memory status information > status Process status in human readable form > @@ -489,6 +490,27 @@ To clear the soft-dirty bit > > Any other value written to /proc/PID/clear_refs will have no effect. > > +The file /proc/PID/reclaim is used to reclaim pages in this process. > +To reclaim file-backed pages, > + > echo file > /proc/PID/reclaim > + > +To reclaim anonymous pages, > + > echo anon > /proc/PID/reclaim > + > +To reclaim all pages, > + > echo all > /proc/PID/reclaim > + > +Also, you can specify address range of process so part of address > space > +will be reclaimed. The format is following as > + > echo addr size-byte > /proc/PID/reclaim > + > +NOTE: addr should be page-aligned.
And size in bytes should be a multiple of page size?
> + > +Below is example which try to reclaim 2 pages from 0x100000. > + > +To reclaim both pages in address range, > + > echo $((1<<20) 8192 > /proc/PID/reclaim
Would you like to balance your parentheses?
Acked-by: Rob Landley <rob@landley.net>
Rob
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