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authorTheodore Ts'o <tytso@mit.edu>2013-04-21 20:19:43 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-07 19:51:57 -0700
commit7e30abf7548990e6db146221664fc10c2a90ead6 (patch)
tree4a736717367584b6296e510d6be38b749a4f4c74 /fs
parentf5b36426ea902c0000699024b9de3ace0ab48f39 (diff)
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 3fc0e8b2063e..9202b22383c1 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1202,6 +1202,8 @@ static void ext4_update_super(struct super_block *sb,
/* Update the global fs size fields */
sbi->s_groups_count += flex_gd->count;
+ sbi->s_blockfile_groups = min_t(ext4_group_t, sbi->s_groups_count,
+ (EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb)));
/* Update the reserved block counts only once the new group is
* active. */