diff options
| author | Yinghai Lu <yinghai@kernel.org> | 2013-06-13 13:17:02 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2013-06-18 11:32:10 -0500 |
| commit | 0541881502a1276149889fe468662ff6a8fc8f6d (patch) | |
| tree | 14bdb51938b710d8b224215bccaea4cbf680b818 /ipc/msg.c | |
| parent | d8d386c10630d8f7837700f4c466443d49e12cc0 (diff) | |
range: Do not add new blank slot with add_range_with_merge
Joshua reported: Commit cd7b304dfaf1 (x86, range: fix missing merge
during add range) broke mtrr cleanup on his setup in 3.9.5.
corresponding commit in upstream is fbe06b7bae7c.
The reason is add_range_with_merge could generate blank spot.
We could avoid that by searching new expanded start/end, that
new range should include all connected ranges in range array.
At last add the new expanded start/end to the range array.
Also move up left array so do not add new blank slot in the
range array.
-v2: move left array to avoid enhance add_range()
-v3: include fix from Joshua about memmove declaring when
DYN_DEBUG is used.
Reported-by: Joshua Covington <joshuacov@googlemail.com>
Tested-by: Joshua Covington <joshuacov@googlemail.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1371154622-8929-3-git-send-email-yinghai@kernel.org
Cc: <stable@vger.kernel.org> v3.9
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'ipc/msg.c')
0 files changed, 0 insertions, 0 deletions