2009-02-18 22:32:20

by Greg KH

[permalink] [raw]
Subject: [patch 29/36] ext4: mark the blocks/inode bitmap beyond end of group as used


2.6.27-stable review patch. If anyone has any objections, please let us know.

------------------

From: Aneesh Kumar K.V <[email protected]>

(cherry picked from commit 648f5879f5892dddd3ba71cd0d285599f40f2512)

We need to mark the block/inode bitmap beyond the end of the group
with '1'.

Signed-off-by: Aneesh Kumar K.V <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
fs/ext4/ialloc.c | 2 +-
fs/ext4/mballoc.c | 4 ++--
fs/ext4/resize.c | 6 ++----
3 files changed, 5 insertions(+), 7 deletions(-)

--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -84,7 +84,7 @@ unsigned ext4_init_inode_bitmap(struct s
}

memset(bh->b_data, 0, (EXT4_INODES_PER_GROUP(sb) + 7) / 8);
- mark_bitmap_end(EXT4_INODES_PER_GROUP(sb), EXT4_BLOCKS_PER_GROUP(sb),
+ mark_bitmap_end(EXT4_INODES_PER_GROUP(sb), sb->s_blocksize * 8,
bh->b_data);

return EXT4_INODES_PER_GROUP(sb);
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3148,8 +3148,8 @@ ext4_mb_mark_diskspace_used(struct ext4_
in_range(block + len - 1, ext4_inode_table(sb, gdp),
EXT4_SB(sb)->s_itb_per_group)) {
ext4_error(sb, __func__,
- "Allocating block in system zone - block = %llu",
- block);
+ "Allocating block %llu in system zone of %d group\n",
+ block, ac->ac_b_ex.fe_group);
/* File system mounted not to panic on error
* Fix the bitmap and repeat the block allocation
* We leak some of the blocks here.
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -284,11 +284,9 @@ static int setup_new_group_blocks(struct
if ((err = extend_or_restart_transaction(handle, 2, bh)))
goto exit_bh;

- mark_bitmap_end(input->blocks_count, EXT4_BLOCKS_PER_GROUP(sb),
- bh->b_data);
+ mark_bitmap_end(input->blocks_count, sb->s_blocksize * 8, bh->b_data);
ext4_journal_dirty_metadata(handle, bh);
brelse(bh);