ext4: fix setup_new_group_blocks locking From: Eric Sandeen setup_new_group_blocks() manipulates the group descriptor block bh under the block_bitmap bh's lock. It shouldn't matter since nobody but resize should be touching these blocks, but it's worth fixing up. Signed-off-by: Eric Sandeen Signed-off-by: Mingming Cao --- fs/ext4/resize.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) Index: linux-2.6.23-rc9/fs/ext4/resize.c =================================================================== --- linux-2.6.23-rc9.orig/fs/ext4/resize.c 2007-10-05 10:20:20.000000000 -0700 +++ linux-2.6.23-rc9/fs/ext4/resize.c 2007-10-05 10:22:06.000000000 -0700 @@ -199,10 +199,10 @@ static int setup_new_group_blocks(struct brelse(gdb); goto exit_bh; } - lock_buffer(bh); - memcpy(gdb->b_data, sbi->s_group_desc[i]->b_data, bh->b_size); + lock_buffer(gdb); + memcpy(gdb->b_data, sbi->s_group_desc[i]->b_data, gdb->b_size); set_buffer_uptodate(gdb); - unlock_buffer(bh); + unlock_buffer(gdb); ext4_journal_dirty_metadata(handle, gdb); ext4_set_bit(bit, bh->b_data); brelse(gdb);