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authorShaohua Li <shli@fb.com>2017-05-03 14:52:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-03 15:52:08 -0700
commitd44d363f65780f2ac2ec672164555af54896d40d (patch)
treebcac8f8737c3c9c2647afe02d904ca4f00c50f24 /mm/huge_memory.c
parenta128ca71fb29ed4444b80f38a0148b468826e19b (diff)
downloadlinux-d44d363f65780f2ac2ec672164555af54896d40d.tar.bz2
mm: don't assume anonymous pages have SwapBacked flag
There are a few places the code assumes anonymous pages should have SwapBacked flag set. MADV_FREE pages are anonymous pages but we are going to add them to LRU_INACTIVE_FILE list and clear SwapBacked flag for them. The assumption doesn't hold any more, so fix them. Link: http://lkml.kernel.org/r/3945232c0df3dd6c4ef001976f35a95f18dcb407.1487965799.git.shli@fb.com Signed-off-by: Shaohua Li <shli@fb.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Hugh Dickins <hughd@google.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@techsingularity.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
-rw-r--r--mm/huge_memory.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index f3c4f9d22821..17f6008f2827 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2399,7 +2399,6 @@ int split_huge_page_to_list(struct page *page, struct list_head *list)
VM_BUG_ON_PAGE(is_huge_zero_page(page), page);
VM_BUG_ON_PAGE(!PageLocked(page), page);
- VM_BUG_ON_PAGE(!PageSwapBacked(page), page);
VM_BUG_ON_PAGE(!PageCompound(page), page);
if (PageAnon(head)) {