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(parent: 47b3bc9) | patch
f2fs: fix overflow when calculating utilization on 32-bit
authorChangman Lee <cm224.lee@samsung.com>
Mon, 25 Feb 2013 08:38:02 +0000 (17:38 +0900)
committerJaegeuk Kim <jaegeuk.kim@samsung.com>
Fri, 8 Mar 2013 01:02:56 +0000 (10:02 +0900)
commit12fc760fd632a96f49e96f519c4aed4eb279bb61
tree09d54e3295705601aa0d600fd9a8e94aca444174tree | snapshot (tar.gz zip)
parent47b3bc907328db968bc9b43c41f48f8d1e140750commit | diff
f2fs: fix overflow when calculating utilization on 32-bit

Use div_u64 to fix overflow when calculating utilization.
*long int* is 4-bytes on 32-bit so (user blocks * 100) might be
overflow if disk size is over e.g. 512GB.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Reviewed-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
fs/f2fs/segment.h diff | blob | blame | history