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author | Nikolay Borisov <nborisov@suse.com> | 2020-11-26 15:10:37 +0200 |
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committer | David Sterba <dsterba@suse.com> | 2020-12-09 19:16:05 +0100 |
commit | ec7d6dfd73b2de1c6bc36f832542061b0ca0e0ff (patch) | |
tree | 602e1cbeb1c517de06a253fa191ef5e2967cb8a0 /fs/btrfs/inode-map.c | |
parent | 1201b58b67b3642fd8cafa3604402bee40df1a6d (diff) | |
download | linux-ec7d6dfd73b2de1c6bc36f832542061b0ca0e0ff.tar.bz2 |
btrfs: move btrfs_find_highest_objectid/btrfs_find_free_objectid to disk-io.c
Those functions are going to be used even after inode cache is removed
so moved them to a more appropriate place.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/inode-map.c')
-rw-r--r-- | fs/btrfs/inode-map.c | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c index 8cf39402b227..2bc342fc5d7e 100644 --- a/fs/btrfs/inode-map.c +++ b/fs/btrfs/inode-map.c @@ -525,58 +525,3 @@ out: extent_changeset_free(data_reserved); return ret; } - -int btrfs_find_highest_objectid(struct btrfs_root *root, u64 *objectid) -{ - struct btrfs_path *path; - int ret; - struct extent_buffer *l; - struct btrfs_key search_key; - struct btrfs_key found_key; - int slot; - - path = btrfs_alloc_path(); - if (!path) - return -ENOMEM; - - search_key.objectid = BTRFS_LAST_FREE_OBJECTID; - search_key.type = -1; - search_key.offset = (u64)-1; - ret = btrfs_search_slot(NULL, root, &search_key, path, 0, 0); - if (ret < 0) - goto error; - BUG_ON(ret == 0); /* Corruption */ - if (path->slots[0] > 0) { - slot = path->slots[0] - 1; - l = path->nodes[0]; - btrfs_item_key_to_cpu(l, &found_key, slot); - *objectid = max_t(u64, found_key.objectid, - BTRFS_FIRST_FREE_OBJECTID - 1); - } else { - *objectid = BTRFS_FIRST_FREE_OBJECTID - 1; - } - ret = 0; -error: - btrfs_free_path(path); - return ret; -} - -int btrfs_find_free_objectid(struct btrfs_root *root, u64 *objectid) -{ - int ret; - mutex_lock(&root->objectid_mutex); - - if (unlikely(root->highest_objectid >= BTRFS_LAST_FREE_OBJECTID)) { - btrfs_warn(root->fs_info, - "the objectid of root %llu reaches its highest value", - root->root_key.objectid); - ret = -ENOSPC; - goto out; - } - - *objectid = ++root->highest_objectid; - ret = 0; -out: - mutex_unlock(&root->objectid_mutex); - return ret; -} |