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| author | Eric Sandeen <sandeen@redhat.com> | 2007-10-16 18:38:25 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2007-10-17 18:50:04 -0400 |
| commit | 5b615287b37c32dc0c9dbeab13b19ac87828a5f7 (patch) | |
| tree | ebfcf41b38dcfafa223a363efcad09762871ea1f /fs/ext4/resize.c | |
| parent | ac39849ddc19c0bbb39068497139ac45bccd4321 (diff) | |
| download | op-kernel-dev-5b615287b37c32dc0c9dbeab13b19ac87828a5f7.zip op-kernel-dev-5b615287b37c32dc0c9dbeab13b19ac87828a5f7.tar.gz | |
ext4: fix setup_new_group_blocks locking
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 <sandeen@redhat.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Diffstat (limited to 'fs/ext4/resize.c')
| -rw-r--r-- | fs/ext4/resize.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 0a7e914..484e569 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -199,10 +199,10 @@ static int setup_new_group_blocks(struct super_block *sb, 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); |
