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| author | Chen Yucong <[email protected]> | 2014-05-22 18:54:15 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2014-05-23 16:37:29 +0000 |
| commit | b985194c8c0a130ed155b71662e39f7eaea4876f (patch) | |
| tree | 8fd7a95f8da83ddbc0c12d919cd86a2c64f74489 /drivers/net/xen-netback/interface.c | |
| parent | Linux 3.15-rc6 (diff) | |
| download | kernel-b985194c8c0a130ed155b71662e39f7eaea4876f.tar.gz kernel-b985194c8c0a130ed155b71662e39f7eaea4876f.zip | |
hwpoison, hugetlb: lock_page/unlock_page does not match for handling a free hugepage
For handling a free hugepage in memory failure, the race will happen if
another thread hwpoisoned this hugepage concurrently. So we need to
check PageHWPoison instead of !PageHWPoison.
If hwpoison_filter(p) returns true or a race happens, then we need to
unlock_page(hpage).
Signed-off-by: Chen Yucong <[email protected]>
Reviewed-by: Naoya Horiguchi <[email protected]>
Tested-by: Naoya Horiguchi <[email protected]>
Reviewed-by: Andi Kleen <[email protected]>
Cc: <[email protected]> [2.6.36+]
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
0 files changed, 0 insertions, 0 deletions