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authorTheodore Ts'o2013-04-21 19:19:43 -0500
committerGreg Kroah-Hartman2013-05-07 22:08:24 -0500
commiteb6903e96bdc8192483867048e04407799d85943 (patch)
tree9592ff801996a9b8d73ba930eb142ecdeb8bdd7f /fs
parent2ed87d87342a7de090409bf02b2a86ac32191d4f (diff)
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ext4: fix online resizing for ext3-compat file systems
commit c5c72d814cf0f650010337c73638b25e6d14d2d4 upstream. Commit fb0a387dcdc restricts block allocations for indirect-mapped files to block groups less than s_blockfile_groups. However, the online resizing code wasn't setting s_blockfile_groups, so the newly added block groups were not available for non-extent mapped files. Reported-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/ext4/resize.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 9eace360466d..a2fe9f53e59b 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1341,6 +1341,8 @@ static void ext4_update_super(struct super_block *sb,
1341 1341
1342 /* Update the global fs size fields */ 1342 /* Update the global fs size fields */
1343 sbi->s_groups_count += flex_gd->count; 1343 sbi->s_groups_count += flex_gd->count;
1344 sbi->s_blockfile_groups = min_t(ext4_group_t, sbi->s_groups_count,
1345 (EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb)));
1344 1346
1345 /* Update the reserved block counts only once the new group is 1347 /* Update the reserved block counts only once the new group is
1346 * active. */ 1348 * active. */