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| author |   Chris Mason <chris.mason@oracle.com> | 2007-10-15 16:15:53 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:03:56 -0400 |
| commit | db94535db75e67fab12ccbb7f5ee548e33fed891 (patch) | |
| tree | 1ad7dfc82b003294a94ee87d7329b24b902b369f /fs/btrfs/tree-defrag.c | |
| parent | Btrfs: Change the remaining radix trees used by extent-tree.c to extent_map trees (diff) | |
| download | linux-dev-db94535db75e67fab12ccbb7f5ee548e33fed891.tar.xz linux-dev-db94535db75e67fab12ccbb7f5ee548e33fed891.zip | |
Btrfs: Allow tree blocks larger than the page size
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/tree-defrag.c')
| -rw-r--r-- | fs/btrfs/tree-defrag.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/fs/btrfs/tree-defrag.c b/fs/btrfs/tree-defrag.c index daf019afa0a1..3feac2f28628 100644 --- a/fs/btrfs/tree-defrag.c +++ b/fs/btrfs/tree-defrag.c @@ -27,13 +27,15 @@ static void reada_defrag(struct btrfs_root *root, { int i; u32 nritems; - u64 blocknr; + u64 bytenr; + u32 blocksize; int ret; + blocksize = btrfs_level_size(root, btrfs_header_level(node) - 1); nritems = btrfs_header_nritems(node); for (i = 0; i < nritems; i++) { - blocknr = btrfs_node_blockptr(node, i); - ret = readahead_tree_block(root, blocknr); + bytenr = btrfs_node_blockptr(node, i); + ret = readahead_tree_block(root, bytenr, blocksize); if (ret) break; } @@ -46,7 +48,7 @@ static int defrag_walk_down(struct btrfs_trans_handle *trans, { struct extent_buffer *next; struct extent_buffer *cur; - u64 blocknr; + u64 bytenr; int ret = 0; int is_extent = 0; @@ -80,10 +82,11 @@ static int defrag_walk_down(struct btrfs_trans_handle *trans, break; } - blocknr = btrfs_node_blockptr(cur, path->slots[*level]); + bytenr = btrfs_node_blockptr(cur, path->slots[*level]); if (cache_only) { - next = btrfs_find_tree_block(root, blocknr); + next = btrfs_find_tree_block(root, bytenr, + btrfs_level_size(root, *level - 1)); /* FIXME, test for defrag */ if (!next || !btrfs_buffer_uptodate(next)) { free_extent_buffer(next); @@ -91,7 +94,8 @@ static int defrag_walk_down(struct btrfs_trans_handle *trans, continue; } } else { - next = read_tree_block(root, blocknr); + next = read_tree_block(root, bytenr, + btrfs_level_size(root, *level - 1)); } ret = btrfs_cow_block(trans, root, next, path->nodes[*level], path->slots[*level], &next); |