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| author | Shaohua Li | 2013-02-23 01:32:31 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2013-02-24 02:50:10 +0100 |
| commit | 1998cc048901109a29924380b8e91bc049b32951 (patch) | |
| tree | 71c6875e8a9a6da14899f74e2dd3168d99374bd5 /mm/compaction.c | |
| parent | memcg,vmscan: do not break out targeted reclaim without reclaimed pages (diff) | |
| download | kernel-qcow2-linux-1998cc048901109a29924380b8e91bc049b32951.tar.gz kernel-qcow2-linux-1998cc048901109a29924380b8e91bc049b32951.tar.xz kernel-qcow2-linux-1998cc048901109a29924380b8e91bc049b32951.zip | |
mm: make madvise(MADV_WILLNEED) support swap file prefetch
Make madvise(MADV_WILLNEED) support swap file prefetch. If memory is
swapout, this syscall can do swapin prefetch. It has no impact if the
memory isn't swapout.
[akpm@linux-foundation.org: fix CONFIG_SWAP=n build]
[sasha.levin@oracle.com: fix BUG on madvise early failure]
Signed-off-by: Shaohua Li <shli@fusionio.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/compaction.c')
0 files changed, 0 insertions, 0 deletions