diff options
| author | Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2015-05-05 16:23:46 -0700 |
|---|---|---|
| committer | Luis Henriques <luis.henriques@canonical.com> | 2015-05-20 13:26:08 +0100 |
| commit | 23a78ec4cfbe3f8be07eb2a2b33a7df9e28687c4 (patch) | |
| tree | cfa6c6c411e806c30a2ed8ff752b01b9f5abdb39 /include | |
| parent | 58e92238b98d8787b95b60dfca1c98e2405c9a96 (diff) | |
mm: soft-offline: fix num_poisoned_pages counting on concurrent events
commit 602498f9aa43d4951eece3fd6ad95a6d0a78d537 upstream.
If multiple soft offline events hit one free page/hugepage concurrently,
soft_offline_page() can handle the free page/hugepage multiple times,
which makes num_poisoned_pages counter increased more than once. This
patch fixes this wrong counting by checking TestSetPageHWPoison for normal
papes and by checking the return value of dequeue_hwpoisoned_huge_page()
for hugepages.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Dean Nelson <dnelson@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions