diff options
| author | Chris Mason <chris.mason@oracle.com> | 2008-01-02 10:01:11 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:03:58 -0400 |
| commit | 8f662a76c6af8eb367fa519e9bb9766040d9cea8 (patch) | |
| tree | 3072a4d35c49e2c884f41d044dec4950bf95c3b3 /fs/btrfs/ctree.c | |
| parent | e52ec0eb62e76ea584c8438ef92933e9b815db80 (diff) | |
| download | lwn-8f662a76c6af8eb367fa519e9bb9766040d9cea8.tar.gz lwn-8f662a76c6af8eb367fa519e9bb9766040d9cea8.zip | |
Btrfs: Add readahead to the online shrinker, and a mount -o alloc_start= for testing
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ctree.c')
| -rw-r--r-- | fs/btrfs/ctree.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 2b3ffa707eae..8fa92a2d9819 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -2654,9 +2654,9 @@ int btrfs_del_item(struct btrfs_trans_handle *trans, struct btrfs_root *root, */ int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path) { + u64 bytenr; int slot; int level = 1; - u64 bytenr; struct extent_buffer *c; struct extent_buffer *next = NULL; @@ -2687,11 +2687,14 @@ int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path) level--; c = path->nodes[level]; free_extent_buffer(c); + slot = btrfs_header_nritems(next); + if (slot != 0) + slot--; path->nodes[level] = next; - path->slots[level] = 0; + path->slots[level] = slot; if (!level) break; - next = read_tree_block(root, btrfs_node_blockptr(next, 0), + next = read_tree_block(root, btrfs_node_blockptr(next, slot), btrfs_level_size(root, level - 1)); } return 0; |