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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2009-01-05 21:36:02 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-01-05 21:36:02 -0500 |
| commit | e21675d4b63975d09eb75c443c48ebe663d23e18 (patch) | |
| tree | 73ace586265c977c2f0b41bbe2ec0b462809aa58 /fs/ext4/resize.c | |
| parent | 3a06d778dfeda7eaeeb79bfa49cf97f2aae132b4 (diff) | |
| download | lwn-e21675d4b63975d09eb75c443c48ebe663d23e18.tar.gz lwn-e21675d4b63975d09eb75c443c48ebe663d23e18.zip | |
ext4: Add blocks added during resize to bitmap
With this change new blocks added during resize
are marked as free in the block bitmap and the
group is flagged with EXT4_GROUP_INFO_NEED_INIT_BIT
flag. This makes sure when mballoc tries to allocate
blocks from the new group we would reload the
buddy information using the bitmap present in the disk.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
Diffstat (limited to 'fs/ext4/resize.c')
| -rw-r--r-- | fs/ext4/resize.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 1865d6a53de3..526db73701b4 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -977,9 +977,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es, struct buffer_head *bh; handle_t *handle; int err; - unsigned long freed_blocks; ext4_group_t group; - struct ext4_group_info *grp; /* We don't need to worry about locking wrt other resizers just * yet: we're going to revalidate es->s_blocks_count after @@ -1077,7 +1075,8 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es, unlock_super(sb); ext4_debug("freeing blocks %llu through %llu\n", o_blocks_count, o_blocks_count + add); - ext4_free_blocks_sb(handle, sb, o_blocks_count, add, &freed_blocks); + /* We add the blocks to the bitmap and set the group need init bit */ + ext4_add_groupblocks(handle, sb, o_blocks_count, add); ext4_debug("freed blocks %llu through %llu\n", o_blocks_count, o_blocks_count + add); if ((err = ext4_journal_stop(handle))) @@ -1120,12 +1119,6 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es, ClearPageUptodate(page); page_cache_release(page); } - - /* Get the info on the last group */ - grp = ext4_get_group_info(sb, group); - - /* Update free blocks in group info */ - ext4_mb_update_group_info(grp, add); } if (test_opt(sb, DEBUG)) |