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| author | Heesub Shin <heesub.shin@samsung.com> | 2013-07-31 13:53:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-31 14:41:03 -0700 |
| commit | 9d8c5b5284e4a0167c5f7b1193692492358b8700 (patch) | |
| tree | ce4fa52666297238d217ce096f5fc6201bd08343 /Documentation/devices.txt | |
| parent | e180cf806a93ea1abbce47b245d25204ff557ce9 (diff) | |
| download | linux-9d8c5b5284e4a0167c5f7b1193692492358b8700.tar.gz linux-9d8c5b5284e4a0167c5f7b1193692492358b8700.tar.bz2 linux-9d8c5b5284e4a0167c5f7b1193692492358b8700.zip | |
mm: zbud: fix condition check on allocation size
zbud_alloc() incorrectly verifies the size of allocation limit. It
should deny the allocation request greater than (PAGE_SIZE -
ZHDR_SIZE_ALIGNED - CHUNK_SIZE), not (PAGE_SIZE - ZHDR_SIZE_ALIGNED)
which has no remaining spaces for its buddy. There is no point in
spending the entire zbud page storing only a single page, since we don't
have any benefits.
Signed-off-by: Heesub Shin <heesub.shin@samsung.com>
Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Bob Liu <bob.liu@oracle.com>
Cc: Dongjun Shin <d.j.shin@samsung.com>
Cc: Sunae Seo <sunae.seo@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/devices.txt')
0 files changed, 0 insertions, 0 deletions