Switch open_exec() and sys_uselib() to do_open_filp()

[safe/jmp/linux-2.6] / fs / btrfs / ctree.c

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index e5b2533..a99f1c2 100644 (file)
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1325,12 +1325,12 @@ static noinline int reada_for_balance(struct btrfs_root *root,
        int ret = 0;
        int blocksize;
 
-       parent = path->nodes[level - 1];
+       parent = path->nodes[level + 1];
        if (!parent)
                return 0;
 
        nritems = btrfs_header_nritems(parent);
-       slot = path->slots[level];
+       slot = path->slots[level + 1];
        blocksize = btrfs_level_size(root, level);
 
        if (slot > 0) {
@@ -1341,7 +1341,7 @@ static noinline int reada_for_balance(struct btrfs_root *root,
                        block1 = 0;
                free_extent_buffer(eb);
        }
-       if (slot < nritems) {
+       if (slot + 1 < nritems) {
                block2 = btrfs_node_blockptr(parent, slot + 1);
                gen = btrfs_node_ptr_generation(parent, slot + 1);
                eb = btrfs_find_tree_block(root, block2, blocksize);
@@ -1351,7 +1351,11 @@ static noinline int reada_for_balance(struct btrfs_root *root,
        }
        if (block1 || block2) {
                ret = -EAGAIN;
+
+               /* release the whole path */
                btrfs_release_path(root, path);
+
+               /* read the blocks */
                if (block1)
                        readahead_tree_block(root, block1, blocksize, 0);
                if (block2)
@@ -1361,7 +1365,7 @@ static noinline int reada_for_balance(struct btrfs_root *root,
                        eb = read_tree_block(root, block1, blocksize, 0);
                        free_extent_buffer(eb);
                }
-               if (block1) {
+               if (block2) {
                        eb = read_tree_block(root, block2, blocksize, 0);
                        free_extent_buffer(eb);
                }
@@ -1481,12 +1485,15 @@ read_block_for_search(struct btrfs_trans_handle *trans,
         * of the btree by dropping locks before
         * we read.
         */
-       btrfs_release_path(NULL, p);
+       btrfs_unlock_up_safe(p, level + 1);
+       btrfs_set_path_blocking(p);
+
        if (tmp)
                free_extent_buffer(tmp);
        if (p->reada)
                reada_for_search(root, p, level, slot, key->objectid);
 
+       btrfs_release_path(NULL, p);
        tmp = read_tree_block(root, blocknr, blocksize, gen);
        if (tmp)
                free_extent_buffer(tmp);