Hello Rob, On Wed, Apr 24, 2013 at 01:49:45AM -0500, Rob Landley wrote: > 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@xxxxxxxxxxx> > >Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx> > >--- > > > >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? Not necessary. It's same with madvise that VM handle the page which includes the byte. > > >+ > >+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? Fixed. I will include your Acked-by in next spin. Thanks! > > Acked-by: Rob Landley <rob@xxxxxxxxxxx> > > Rob -- Kind regards, Minchan Kim -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>