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| author |   Hillf Danton <dhillf@gmail.com> | 2011-10-31 17:09:38 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-31 17:30:50 -0700 |
| commit | 0089e4853ae1ac161fae5137170971ccb6f4f152 (patch) | |
| tree | 6e23993f320cd6b0d45a5fb4832188cd2092efe2 /block | |
| parent | mm: do not drain pagevecs for mlockall(MCL_FUTURE) (diff) | |
| download | linux-dev-0089e4853ae1ac161fae5137170971ccb6f4f152.tar.xz linux-dev-0089e4853ae1ac161fae5137170971ccb6f4f152.zip | |
mm/huge_memory: fix copying user highpage
The THP copy-on-write handler falls back to regular-sized pages for a huge
page replacement upon allocation failure or if THP has been individually
disabled in the target VMA. The loop responsible for copying page-sized
chunks accidentally uses multiples of PAGE_SHIFT instead of PAGE_SIZE as
the virtual address arg for copy_user_highpage().
Signed-off-by: Hillf Danton <dhillf@gmail.com>
Acked-by: Johannes Weiner <jweiner@redhat.com>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions