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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2015-05-14 01:01:45 +0000 |
|---|---|---|
| committer | Johannes Weiner <hannes@cmpxchg.org> | 2015-05-14 01:01:45 +0000 |
| commit | e653fdf15a865663001e4c9e092854ea5ddabd13 (patch) | |
| tree | 304047be37f3a9d8c012dd6c18dd02d7c5924e0c | |
| parent | b08cb2da0a8d49076ee0b903273a428e661f4630 (diff) | |
| download | mm-next-e653fdf15a865663001e4c9e092854ea5ddabd13.tar.gz | |
page-flags: define PG_swapbacked behavior on compound pages
PG_swapbacked is used for transparent huge pages. For head pages only.
Let's use NO_TAIL policy.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Steve Capper <steve.capper@linaro.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | include/linux/page-flags.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 3ae37a9af99629..51d2079029686c 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -290,9 +290,9 @@ PAGEFLAG(Foreign, foreign, NO_COMPOUND) PAGEFLAG(Reserved, reserved, NO_COMPOUND) __CLEARPAGEFLAG(Reserved, reserved, NO_COMPOUND) -PAGEFLAG(SwapBacked, swapbacked, ANY) - __CLEARPAGEFLAG(SwapBacked, swapbacked, ANY) - __SETPAGEFLAG(SwapBacked, swapbacked, ANY) +PAGEFLAG(SwapBacked, swapbacked, NO_TAIL) + __CLEARPAGEFLAG(SwapBacked, swapbacked, NO_TAIL) + __SETPAGEFLAG(SwapBacked, swapbacked, NO_TAIL) /* * Private page markings that may be used by the filesystem that owns the page |