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| author | Eric Whitney <enwlinux@gmail.com> | 2014-01-06 19:00:23 (GMT) |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2014-01-06 19:00:23 (GMT) |
| commit | d0abafac8c9162f39c4f6b2f8141b772a09b3770 (patch) | |
| tree | 9f352c64a8d2cb8330600c11e8dc9855af9c63be | |
| parent | f5a44db5d2d677dfbf12deee461f85e9ec633961 (diff) | |
| download | linux-d0abafac8c9162f39c4f6b2f8141b772a09b3770.tar.xz | |
ext4: fix bigalloc regression
Commit f5a44db5d2 introduced a regression on filesystems created with
the bigalloc feature (cluster size > blocksize). It causes xfstests
generic/006 and /013 to fail with an unexpected JBD2 failure and
transaction abort that leaves the test file system in a read only state.
Other xfstests run on bigalloc file systems are likely to fail as well.
The cause is the accidental use of a cluster mask where a cluster
offset was needed in ext4_ext_map_blocks().
Signed-off-by: Eric Whitney <enwlinux@gmail.com>
| -rw-r--r-- | fs/ext4/extents.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 4410cc3..3384dc4 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -4218,7 +4218,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode, */ map->m_flags &= ~EXT4_MAP_FROM_CLUSTER; newex.ee_block = cpu_to_le32(map->m_lblk); - cluster_offset = EXT4_LBLK_CMASK(sbi, map->m_lblk); + cluster_offset = EXT4_LBLK_COFF(sbi, map->m_lblk); /* * If we are doing bigalloc, check to see if the extent returned |