diff options
| author | Andrea Arcangeli <aarcange@redhat.com> | 2011-11-01 00:08:22 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-01 00:30:47 (GMT) |
| commit | ebed48460be5abd86d9a24fa7c66378e58109f30 (patch) | |
| tree | 721d935953c58ac014e3d00ea1092ab480ea3356 /ipc/msg.c | |
| parent | 6661672053aee709d93f5dbd7887c789364c11d4 (diff) | |
| download | linux-ebed48460be5abd86d9a24fa7c66378e58109f30.tar.xz | |
mremap: check for overflow using deltas
Using "- 1" relies on the old_end to be page aligned and PAGE_SIZE > 1,
those are reasonable requirements but the check remains obscure and it
looks more like an off by one error than an overflow check. This I feel
will improve readability.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Johannes Weiner <jweiner@redhat.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc/msg.c')
0 files changed, 0 insertions, 0 deletions