aboutsummaryrefslogtreecommitdiffstats
path: root/ipc/sem.c
diff options
context:
space:
mode:
authorWanpeng Li <liwanp@linux.vnet.ibm.com>2013-09-30 13:45:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-30 14:31:03 -0700
commitfb31ba30fb10fe0ee11739f51669d581b4a1412c (patch)
treefd725fcd501f855706c253be37b0c2e2602586a1 /ipc/sem.c
parent2d421acd1568cf2d83739a1afec8e18edb9e3d16 (diff)
mm/hwpoison: fix the lack of one reference count against poisoned page
The lack of one reference count against poisoned page for hwpoison_inject w/o hwpoison_filter enabled result in hwpoison detect -1 users still referenced the page, however, the number should be 0 except the poison handler held one after successfully unmap. This patch fix it by hold one referenced count against poisoned page for hwpoison_inject w/ and w/o hwpoison_filter enabled. Before patch: [ 71.902112] Injecting memory failure at pfn 224706 [ 71.902137] MCE 0x224706: dirty LRU page recovery: Failed [ 71.902138] MCE 0x224706: dirty LRU page still referenced by -1 users After patch: [ 94.710860] Injecting memory failure at pfn 215b68 [ 94.710885] MCE 0x215b68: dirty LRU page recovery: Recovered Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Acked-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc/sem.c')
0 files changed, 0 insertions, 0 deletions

Privacy Policy