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ext3: fix setup_new_group_blocks locking

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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>
C: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Eric Sandeen 2007-10-18 03:06:57 -07:00 committed by Linus Torvalds
parent 0f0a89ebe1
commit 42a2b6ad71
1 changed files with 3 additions and 3 deletions
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6
fs/ext3/resize.c
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@ -245,10 +245,10 @@ 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);
ext3_journal_dirty_metadata(handle, gdb);
ext3_set_bit(bit, bh->b_data);
brelse(gdb);