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| author | Huang Ying <ying.huang@intel.com> | 2017-09-06 16:24:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-06 17:27:29 -0700 |
| commit | d9bfcfdc41e8e5d80f7591f95a09ccce7cb8ad05 (patch) | |
| tree | c0844737c2d37eab327d6dfb0c446ef111b92d4f /mm/swapfile.c | |
| parent | ec560175c0b6fce86994bdf036754d48122c5c87 (diff) | |
| download | op-kernel-dev-d9bfcfdc41e8e5d80f7591f95a09ccce7cb8ad05.zip op-kernel-dev-d9bfcfdc41e8e5d80f7591f95a09ccce7cb8ad05.tar.gz | |
mm, swap: add sysfs interface for VMA based swap readahead
The sysfs interface to control the VMA based swap readahead is added as
follow,
/sys/kernel/mm/swap/vma_ra_enabled
Enable the VMA based swap readahead algorithm, or use the original
global swap readahead algorithm.
/sys/kernel/mm/swap/vma_ra_max_order
Set the max order of the readahead window size for the VMA based swap
readahead algorithm.
The corresponding ABI documentation is added too.
Link: http://lkml.kernel.org/r/20170807054038.1843-5-ying.huang@intel.com
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Shaohua Li <shli@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Tim Chen <tim.c.chen@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/swapfile.c')
0 files changed, 0 insertions, 0 deletions
