diff options
| author | Konstantin Khlebnikov <khlebnikov@yandex-team.ru> | 2016-04-28 16:19:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-04-28 19:34:04 -0700 |
| commit | c2e7e00b715d3c65f301bec8559d6af4ef8098ab (patch) | |
| tree | e89161188d2a485e428e9aa61690517418f75952 /certs | |
| parent | b73413647ee36406561618f68d0661d49dc47489 (diff) | |
mm/memory-failure: fix race with compound page split/merge
get_hwpoison_page() must recheck relation between head and tail pages.
n-horiguchi said: without this recheck, the race causes kernel to pin an
irrelevant page, and finally makes kernel crash for refcount mismatch.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'certs')
0 files changed, 0 insertions, 0 deletions