Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6

[~andy/linux] / fs / btrfs / disk-io.c

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 549271607c174eeb8164d13337924d397054dea1..5aebddd711934817e6f2993375bc1031e3330e63 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -799,7 +799,7 @@ struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
        ret = btree_read_extent_buffer_pages(root, buf, 0, parent_transid);
 
        if (ret == 0)
-               buf->flags |= EXTENT_UPTODATE;
+               set_bit(EXTENT_BUFFER_UPTODATE, &buf->bflags);
        else
                WARN_ON(1);
        return buf;
@@ -813,6 +813,10 @@ int clean_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root,
        if (btrfs_header_generation(buf) ==
            root->fs_info->running_transaction->transid) {
                WARN_ON(!btrfs_tree_locked(buf));
+
+               /* ugh, clear_extent_buffer_dirty can be expensive */
+               btrfs_set_lock_blocking(buf);
+
                clear_extent_buffer_dirty(&BTRFS_I(btree_inode)->io_tree,
                                          buf);
        }
@@ -2311,6 +2315,8 @@ void btrfs_mark_buffer_dirty(struct extent_buffer *buf)
        u64 transid = btrfs_header_generation(buf);
        struct inode *btree_inode = root->fs_info->btree_inode;
 
+       btrfs_set_lock_blocking(buf);
+
        WARN_ON(!btrfs_tree_locked(buf));
        if (transid != root->fs_info->generation) {
                printk(KERN_CRIT "btrfs transid mismatch buffer %llu, "
@@ -2353,7 +2359,7 @@ int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid)
        int ret;
        ret = btree_read_extent_buffer_pages(root, buf, 0, parent_transid);
        if (ret == 0)
-               buf->flags |= EXTENT_UPTODATE;
+               set_bit(EXTENT_BUFFER_UPTODATE, &buf->bflags);
        return ret;
 }