diff options
| author | Ebru Akagunduz <ebru.akagunduz@gmail.com> | 2016-09-19 23:44:04 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-09-20 00:36:16 +0200 |
| commit | 982785c6b05a82c01e90687b7e25ee87c8970b2e (patch) | |
| tree | d855120e0185c802dcb3c222fc94abe31a279b3c /mm/debug.c | |
| parent | khugepaged: fix use-after-free in collapse_huge_page() (diff) | |
| download | linux-982785c6b05a82c01e90687b7e25ee87c8970b2e.tar.xz linux-982785c6b05a82c01e90687b7e25ee87c8970b2e.zip | |
mm, thp: fix leaking mapped pte in __collapse_huge_page_swapin()
Currently, khugepaged does not permit swapin if there are enough young
pages in a THP. The problem is when a THP does not have enough young
pages, khugepaged leaks mapped ptes.
This patch prohibits leaking mapped ptes.
Link: http://lkml.kernel.org/r/1472820276-7831-1-git-send-email-ebru.akagunduz@gmail.com
Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Suggested-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/debug.c')
0 files changed, 0 insertions, 0 deletions