Merge branch 'pci-for-jesse' of git://git.kernel.org/pub/scm/linux/kernel/git/tip...

[linux-2.6] / fs / ext4 / balloc.c

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 386cb79ac4b64de1601cd351339311459195040a..1ae5004e93fc20ffd99a652efa6be9897a0518c1 100644 (file)
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -321,12 +321,15 @@ ext4_read_block_bitmap(struct super_block *sb, ext4_group_t block_group)
        if (bh_uptodate_or_lock(bh))
                return bh;
 
+       spin_lock(sb_bgl_lock(EXT4_SB(sb), block_group));
        if (desc->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
                ext4_init_block_bitmap(sb, bh, block_group, desc);
                set_buffer_uptodate(bh);
                unlock_buffer(bh);
+               spin_unlock(sb_bgl_lock(EXT4_SB(sb), block_group));
                return bh;
        }
+       spin_unlock(sb_bgl_lock(EXT4_SB(sb), block_group));
        if (bh_submit_read(bh) < 0) {
                put_bh(bh);
                ext4_error(sb, __func__,