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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2016-01-15 16:51:46 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-15 17:56:32 -0800 |
| commit | da5efc408baefd686b0ee2cbd1353eb10ec71a0f (patch) | |
| tree | 3dda0c2226ba8d05270b5e752898443ad0098ef4 /include | |
| parent | de09d31dd38a50fdce106c15abd68432eebbd014 (diff) | |
| download | blackbird-op-linux-da5efc408baefd686b0ee2cbd1353eb10ec71a0f.tar.gz blackbird-op-linux-da5efc408baefd686b0ee2cbd1353eb10ec71a0f.zip | |
page-flags: define PG_swapbacked behavior on compound pages
PG_swapbacked is used for transparent huge pages. For head pages only.
Let's use PF_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>
Cc: Jérôme Glisse <jglisse@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -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 dbfd8f325f98..eda487ecc01c 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -278,9 +278,9 @@ PAGEFLAG(Foreign, foreign, PF_NO_COMPOUND); PAGEFLAG(Reserved, reserved, PF_NO_COMPOUND) __CLEARPAGEFLAG(Reserved, reserved, PF_NO_COMPOUND) -PAGEFLAG(SwapBacked, swapbacked, PF_ANY) - __CLEARPAGEFLAG(SwapBacked, swapbacked, PF_ANY) - __SETPAGEFLAG(SwapBacked, swapbacked, PF_ANY) +PAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL) + __CLEARPAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL) + __SETPAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL) /* * Private page markings that may be used by the filesystem that owns the page |
