diff options
| author | David S. Miller <davem@davemloft.net> | 2012-11-10 18:32:51 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-11-10 18:32:51 -0500 |
| commit | d4185bbf62a5d8d777ee445db1581beb17882a07 (patch) | |
| tree | 024b0badbd7c970b1983be6d8c345cc4a290cb31 /fs/jfs/jfs_discard.c | |
| parent | c075b13098b399dc565b4d53f42047a8d40ed3ba (diff) | |
| parent | a375413311b39005ef281bfd71ae8f4e3df22e97 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
Minor conflict between the BCM_CNIC define removal in net-next
and a bug fix added to net. Based upon a conflict resolution
patch posted by Stephen Rothwell.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/jfs/jfs_discard.c')
| -rw-r--r-- | fs/jfs/jfs_discard.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/fs/jfs/jfs_discard.c b/fs/jfs/jfs_discard.c index 9947563e4175..dfcd50304559 100644 --- a/fs/jfs/jfs_discard.c +++ b/fs/jfs/jfs_discard.c @@ -83,7 +83,7 @@ int jfs_ioc_trim(struct inode *ip, struct fstrim_range *range) struct bmap *bmp = JFS_SBI(ip->i_sb)->bmap; struct super_block *sb = ipbmap->i_sb; int agno, agno_end; - s64 start, end, minlen; + u64 start, end, minlen; u64 trimmed = 0; /** @@ -93,15 +93,19 @@ int jfs_ioc_trim(struct inode *ip, struct fstrim_range *range) * minlen: minimum extent length in Bytes */ start = range->start >> sb->s_blocksize_bits; - if (start < 0) - start = 0; end = start + (range->len >> sb->s_blocksize_bits) - 1; - if (end >= bmp->db_mapsize) - end = bmp->db_mapsize - 1; minlen = range->minlen >> sb->s_blocksize_bits; - if (minlen <= 0) + if (minlen == 0) minlen = 1; + if (minlen > bmp->db_agsize || + start >= bmp->db_mapsize || + range->len < sb->s_blocksize) + return -EINVAL; + + if (end >= bmp->db_mapsize) + end = bmp->db_mapsize - 1; + /** * we trim all ag's within the range */ |