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f2fs: potential shift wrapping buf in f2fs_trim_fs() 

My static checker complains that segment is a u64 but only the lower 31
bits can be used before we hit a shift wrapping bug.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Dan Carpenter 2014-09-25 14:39:17 +03:00 committed by Jaegeuk Kim
parent 44c1615651
commit 8a21984d5d
1 changed files with 1 additions and 1 deletions
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2
fs/f2fs/segment.h
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@ -55,7 +55,7 @@
#define TOTAL_BLKS(sbi) (TOTAL_SEGS(sbi) << sbi->log_blocks_per_seg)
#define MAX_BLKADDR(sbi) (SEG0_BLKADDR(sbi) + TOTAL_BLKS(sbi))
#define SEGMENT_SIZE(sbi) (1 << (sbi->log_blocksize + \
#define SEGMENT_SIZE(sbi) (1ULL << (sbi->log_blocksize + \
sbi->log_blocks_per_seg))
#define START_BLOCK(sbi, segno) (SEG0_BLKADDR(sbi) + \