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| author | zhong jiang <zhongjiang@huawei.com> | 2017-02-22 15:46:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-22 16:41:31 -0800 |
| commit | f201ebd87652cf1519792f8662bb3f862c76aa33 (patch) | |
| tree | 3dfc4774407bcc51d5cb91066af04cdc7eb8d3b8 /arch/powerpc | |
| parent | 083fb8edda0487d192e8c117f625563b920cf7a4 (diff) | |
| download | linux-f201ebd87652cf1519792f8662bb3f862c76aa33.tar.gz linux-f201ebd87652cf1519792f8662bb3f862c76aa33.tar.xz | |
mm/z3fold.c: limit first_num to the actual range of possible buddy indexes
At present, Tying the first_num size to NCHUNKS_ORDER is confusing. the
number of chunks is completely unrelated to the number of buddies.
The patch limits the first_num to actual range of possible buddy indexes.
and that is more reasonable and obvious without functional change.
Link: http://lkml.kernel.org/r/1476776569-29504-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Suggested-by: Dan Streetman <ddstreet@ieee.org>
Acked-by: Dan Streetman <ddstreet@ieee.org>
Acked-by: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc')
0 files changed, 0 insertions, 0 deletions