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| author | Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2013-07-31 13:53:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-31 14:41:03 -0700 |
| commit | ef2a2cbdda7e9d084a85846770fcc844958881f6 (patch) | |
| tree | 8942f9f69822e234bb0c2da6e0ccc0756ed2d27b /tools | |
| parent | 31a1b26f16e822577def5402ffc79cfe4aed2db9 (diff) | |
| download | linux-stable-ef2a2cbdda7e9d084a85846770fcc844958881f6.tar.gz linux-stable-ef2a2cbdda7e9d084a85846770fcc844958881f6.tar.bz2 linux-stable-ef2a2cbdda7e9d084a85846770fcc844958881f6.zip | |
mm/swap.c: clear PageActive before adding pages onto unevictable list
As a result of commit 13f7f78981e4 ("mm: pagevec: defer deciding which
LRU to add a page to until pagevec drain time"), pages on unevictable
lists can have both of PageActive and PageUnevictable set. This is not
only confusing, but also corrupts page migration and
shrink_[in]active_list.
This patch fixes the problem by adding ClearPageActive before adding
pages into unevictable list. It also cleans up VM_BUG_ONs.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions