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authorChris Mason <chris.mason@oracle.com>2007-04-17 15:39:32 -0400
committerDavid Woodhouse <dwmw2@hera.kernel.org>2007-04-17 15:39:32 -0400
commit70b2befd0c8a4064715d8b340270650cc9d15af8 (patch)
tree81171607c9ddf501e5c0233dc24d20d1a5b19858 /fs/btrfs/dir-item.c
parentb18c6685810af8e6763760711aece31ccc7a8ea8 (diff)
downloadlinux-70b2befd0c8a4064715d8b340270650cc9d15af8.tar.bz2
Btrfs: rework csums and extent item ordering
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/dir-item.c')
-rw-r--r--fs/btrfs/dir-item.c28
1 files changed, 19 insertions, 9 deletions
diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
index 0ba46bc0da9a..cd4137a8b87e 100644
--- a/fs/btrfs/dir-item.c
+++ b/fs/btrfs/dir-item.c
@@ -103,7 +103,7 @@ int btrfs_lookup_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root
key.objectid = dir;
key.flags = 0;
btrfs_set_key_type(&key, BTRFS_DIR_ITEM_KEY);
- btrfs_set_key_overflow(&key, BTRFS_KEY_OVERFLOW_MAX - 1);
+ // btrfs_set_key_overflow(&key, BTRFS_KEY_OVERFLOW_MAX - 1);
ret = btrfs_name_hash(name, name_len, &key.offset);
BUG_ON(ret);
while(1) {
@@ -146,19 +146,29 @@ int btrfs_lookup_dir_index_item(struct btrfs_trans_handle *trans,
int cow = mod != 0;
struct btrfs_disk_key *found_key;
struct btrfs_leaf *leaf;
+ int overflow = 0;
key.objectid = dir;
key.flags = 0;
btrfs_set_key_type(&key, BTRFS_DIR_INDEX_KEY);
- btrfs_set_key_overflow(&key, BTRFS_KEY_OVERFLOW_MAX - 1);
key.offset = objectid;
- ret = btrfs_search_slot(trans, root, &key, path, ins_len, cow);
- if (ret < 0)
- return ret;
- if (ret > 0) {
- if (path->slots[0] == 0)
- return 1;
- path->slots[0]--;
+
+ while(1) {
+ btrfs_set_key_overflow(&key, overflow);
+ ret = btrfs_search_slot(trans, root, &key, path, ins_len, cow);
+ if (ret < 0)
+ return ret;
+ if (ret > 0) {
+ if (overflow >= BTRFS_KEY_OVERFLOW_MAX)
+ return 1;
+ overflow++;
+ btrfs_set_key_overflow(&key, overflow);
+ btrfs_release_path(root, path);
+ continue;
+ } else {
+ /* found */
+ break;
+ }
}
leaf = btrfs_buffer_leaf(path->nodes[0]);
found_key = &leaf->items[path->slots[0]].key;