Commit 00246528 authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
Browse files

btrfs: rename btrfs_put_fs_root and btrfs_grab_fs_root 



We are now using these for all roots, rename them to btrfs_put_root()
and btrfs_grab_root();

Reviewed-by: default avatarNikolay Borisov <nborisov@suse.com>
Signed-off-by: default avatarJosef Bacik <josef@toxicpanda.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent bd647ce3

fs/btrfs/backref.c

+1 −1
Original line number Diff line number Diff line
@@ -577,7 +577,7 @@ static int resolve_indirect_ref(struct btrfs_fs_info *fs_info, 
	ret = add_all_parents(root, path, parents, ref, level, time_seq,

			      extent_item_pos, total_refs, ignore_offset);

out:

	btrfs_put_fs_root(root);

	btrfs_put_root(root);

out_free:

	path->lowest_level = 0;

	btrfs_release_path(path);

fs/btrfs/disk-io.c

+39 −39
Original line number Diff line number Diff line
@@ -1309,7 +1309,7 @@ fail: 
		free_extent_buffer(root->commit_root);

		free_extent_buffer(leaf);

	}

	btrfs_put_fs_root(root);

	btrfs_put_root(root);



	return ERR_PTR(ret);

}
@@ -1340,7 +1340,7 @@ static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans, 
	leaf = btrfs_alloc_tree_block(trans, root, 0, BTRFS_TREE_LOG_OBJECTID,

			NULL, 0, 0, 0);

	if (IS_ERR(leaf)) {

		btrfs_put_fs_root(root);

		btrfs_put_root(root);

		return ERR_CAST(leaf);

	}
@@ -1443,7 +1443,7 @@ out: 
	return root;



find_fail:

	btrfs_put_fs_root(root);

	btrfs_put_root(root);

alloc_fail:

	root = ERR_PTR(ret);

	goto out;
@@ -1509,7 +1509,7 @@ static struct btrfs_root *btrfs_lookup_fs_root(struct btrfs_fs_info *fs_info, 
	root = radix_tree_lookup(&fs_info->fs_roots_radix,

				 (unsigned long)root_id);

	if (root)

		root = btrfs_grab_fs_root(root);

		root = btrfs_grab_root(root);

	spin_unlock(&fs_info->fs_roots_radix_lock);

	return root;

}
@@ -1528,7 +1528,7 @@ int btrfs_insert_fs_root(struct btrfs_fs_info *fs_info, 
				(unsigned long)root->root_key.objectid,

				root);

	if (ret == 0) {

		btrfs_grab_fs_root(root);

		btrfs_grab_root(root);

		set_bit(BTRFS_ROOT_IN_RADIX, &root->state);

	}

	spin_unlock(&fs_info->fs_roots_radix_lock);
@@ -1549,8 +1549,8 @@ void btrfs_check_leaked_roots(struct btrfs_fs_info *fs_info) 
			  root->root_key.objectid, root->root_key.offset,

			  refcount_read(&root->refs));

		while (refcount_read(&root->refs) > 1)

			btrfs_put_fs_root(root);

		btrfs_put_fs_root(root);

			btrfs_put_root(root);

		btrfs_put_root(root);

	}

#endif

}
@@ -1566,15 +1566,15 @@ void btrfs_free_fs_info(struct btrfs_fs_info *fs_info) 
	btrfs_free_ref_cache(fs_info);

	kfree(fs_info->balance_ctl);

	kfree(fs_info->delayed_root);

	btrfs_put_fs_root(fs_info->extent_root);

	btrfs_put_fs_root(fs_info->tree_root);

	btrfs_put_fs_root(fs_info->chunk_root);

	btrfs_put_fs_root(fs_info->dev_root);

	btrfs_put_fs_root(fs_info->csum_root);

	btrfs_put_fs_root(fs_info->quota_root);

	btrfs_put_fs_root(fs_info->uuid_root);

	btrfs_put_fs_root(fs_info->free_space_root);

	btrfs_put_fs_root(fs_info->fs_root);

	btrfs_put_root(fs_info->extent_root);

	btrfs_put_root(fs_info->tree_root);

	btrfs_put_root(fs_info->chunk_root);

	btrfs_put_root(fs_info->dev_root);

	btrfs_put_root(fs_info->csum_root);

	btrfs_put_root(fs_info->quota_root);

	btrfs_put_root(fs_info->uuid_root);

	btrfs_put_root(fs_info->free_space_root);

	btrfs_put_root(fs_info->fs_root);

	btrfs_check_leaked_roots(fs_info);

	kfree(fs_info->super_copy);

	kfree(fs_info->super_for_commit);
@@ -1592,29 +1592,29 @@ struct btrfs_root *btrfs_get_fs_root(struct btrfs_fs_info *fs_info, 
	int ret;



	if (location->objectid == BTRFS_ROOT_TREE_OBJECTID)

		return btrfs_grab_fs_root(fs_info->tree_root);

		return btrfs_grab_root(fs_info->tree_root);

	if (location->objectid == BTRFS_EXTENT_TREE_OBJECTID)

		return btrfs_grab_fs_root(fs_info->extent_root);

		return btrfs_grab_root(fs_info->extent_root);

	if (location->objectid == BTRFS_CHUNK_TREE_OBJECTID)

		return btrfs_grab_fs_root(fs_info->chunk_root);

		return btrfs_grab_root(fs_info->chunk_root);

	if (location->objectid == BTRFS_DEV_TREE_OBJECTID)

		return btrfs_grab_fs_root(fs_info->dev_root);

		return btrfs_grab_root(fs_info->dev_root);

	if (location->objectid == BTRFS_CSUM_TREE_OBJECTID)

		return btrfs_grab_fs_root(fs_info->csum_root);

		return btrfs_grab_root(fs_info->csum_root);

	if (location->objectid == BTRFS_QUOTA_TREE_OBJECTID)

		return btrfs_grab_fs_root(fs_info->quota_root) ?

		return btrfs_grab_root(fs_info->quota_root) ?

			fs_info->quota_root : ERR_PTR(-ENOENT);

	if (location->objectid == BTRFS_UUID_TREE_OBJECTID)

		return btrfs_grab_fs_root(fs_info->uuid_root) ?

		return btrfs_grab_root(fs_info->uuid_root) ?

			fs_info->uuid_root : ERR_PTR(-ENOENT);

	if (location->objectid == BTRFS_FREE_SPACE_TREE_OBJECTID)

		return btrfs_grab_fs_root(fs_info->free_space_root) ?

		return btrfs_grab_root(fs_info->free_space_root) ?

			fs_info->free_space_root : ERR_PTR(-ENOENT);

again:

	root = btrfs_lookup_fs_root(fs_info, location->objectid);

	if (root) {

		if (check_ref && btrfs_root_refs(&root->root_item) == 0) {

			btrfs_put_fs_root(root);

			btrfs_put_root(root);

			return ERR_PTR(-ENOENT);

		}

		return root;
@@ -1657,10 +1657,10 @@ again: 
	 * we have the third for returning it, and the caller will put it when

	 * it's done with the root.

	 */

	btrfs_grab_fs_root(root);

	btrfs_grab_root(root);

	ret = btrfs_insert_fs_root(fs_info, root);

	if (ret) {

		btrfs_put_fs_root(root);

		btrfs_put_root(root);

		if (ret == -EEXIST) {

			btrfs_free_fs_root(root);

			goto again;
@@ -2062,7 +2062,7 @@ void btrfs_free_fs_roots(struct btrfs_fs_info *fs_info) 
		} else {

			free_extent_buffer(gang[0]->node);

			free_extent_buffer(gang[0]->commit_root);

			btrfs_put_fs_root(gang[0]);

			btrfs_put_root(gang[0]);

		}

	}
@@ -2270,12 +2270,12 @@ static int btrfs_replay_log(struct btrfs_fs_info *fs_info, 
	if (IS_ERR(log_tree_root->node)) {

		btrfs_warn(fs_info, "failed to read log tree");

		ret = PTR_ERR(log_tree_root->node);

		btrfs_put_fs_root(log_tree_root);

		btrfs_put_root(log_tree_root);

		return ret;

	} else if (!extent_buffer_uptodate(log_tree_root->node)) {

		btrfs_err(fs_info, "failed to read log tree");

		free_extent_buffer(log_tree_root->node);

		btrfs_put_fs_root(log_tree_root);

		btrfs_put_root(log_tree_root);

		return -EIO;

	}

	/* returns with log_tree_root freed on success */
@@ -2284,7 +2284,7 @@ static int btrfs_replay_log(struct btrfs_fs_info *fs_info, 
		btrfs_handle_fs_error(fs_info, ret,

				      "Failed to recover log tree");

		free_extent_buffer(log_tree_root->node);

		btrfs_put_fs_root(log_tree_root);

		btrfs_put_root(log_tree_root);

		return ret;

	}
@@ -3884,7 +3884,7 @@ void btrfs_drop_and_free_fs_root(struct btrfs_fs_info *fs_info, 
	radix_tree_delete(&fs_info->fs_roots_radix,

			  (unsigned long)root->root_key.objectid);

	if (test_and_clear_bit(BTRFS_ROOT_IN_RADIX, &root->state))

		btrfs_put_fs_root(root);

		btrfs_put_root(root);

	spin_unlock(&fs_info->fs_roots_radix_lock);



	if (btrfs_root_refs(&root->root_item) == 0)
@@ -3895,7 +3895,7 @@ void btrfs_drop_and_free_fs_root(struct btrfs_fs_info *fs_info, 
		if (root->reloc_root) {

			free_extent_buffer(root->reloc_root->node);

			free_extent_buffer(root->reloc_root->commit_root);

			btrfs_put_fs_root(root->reloc_root);

			btrfs_put_root(root->reloc_root);

			root->reloc_root = NULL;

		}

	}
@@ -3919,7 +3919,7 @@ void btrfs_free_fs_root(struct btrfs_root *root) 
	free_extent_buffer(root->commit_root);

	kfree(root->free_ino_ctl);

	kfree(root->free_ino_pinned);

	btrfs_put_fs_root(root);

	btrfs_put_root(root);

}



int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info)
@@ -3949,7 +3949,7 @@ int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info) 
				continue;

			}

			/* grab all the search result for later use */

			gang[i] = btrfs_grab_fs_root(gang[i]);

			gang[i] = btrfs_grab_root(gang[i]);

		}

		srcu_read_unlock(&fs_info->subvol_srcu, index);
@@ -3960,7 +3960,7 @@ int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info) 
			err = btrfs_orphan_cleanup(gang[i]);

			if (err)

				break;

			btrfs_put_fs_root(gang[i]);

			btrfs_put_root(gang[i]);

		}

		root_objectid++;

	}
@@ -3968,7 +3968,7 @@ int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info) 
	/* release the uncleaned roots due to error */

	for (; i < ret; i++) {

		if (gang[i])

			btrfs_put_fs_root(gang[i]);

			btrfs_put_root(gang[i]);

	}

	return err;

}
@@ -4368,12 +4368,12 @@ static void btrfs_destroy_all_delalloc_inodes(struct btrfs_fs_info *fs_info) 
	while (!list_empty(&splice)) {

		root = list_first_entry(&splice, struct btrfs_root,

					 delalloc_root);

		root = btrfs_grab_fs_root(root);

		root = btrfs_grab_root(root);

		BUG_ON(!root);

		spin_unlock(&fs_info->delalloc_root_lock);



		btrfs_destroy_delalloc_inodes(root);

		btrfs_put_fs_root(root);

		btrfs_put_root(root);



		spin_lock(&fs_info->delalloc_root_lock);

	}

fs/btrfs/disk-io.h

+2 −2
Original line number Diff line number Diff line
@@ -89,7 +89,7 @@ struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info); 
 * If you want to ensure the whole tree is safe, you should use

 * 	fs_info->subvol_srcu

 */

static inline struct btrfs_root *btrfs_grab_fs_root(struct btrfs_root *root)

static inline struct btrfs_root *btrfs_grab_root(struct btrfs_root *root)

{

	if (!root)

		return NULL;
@@ -98,7 +98,7 @@ static inline struct btrfs_root *btrfs_grab_fs_root(struct btrfs_root *root) 
	return NULL;

}



static inline void btrfs_put_fs_root(struct btrfs_root *root)

static inline void btrfs_put_root(struct btrfs_root *root)

{

	if (!root)

		return;

fs/btrfs/export.c

+1 −1
Original line number Diff line number Diff line
@@ -88,7 +88,7 @@ static struct dentry *btrfs_get_dentry(struct super_block *sb, u64 objectid, 
	key.offset = 0;



	inode = btrfs_iget(sb, &key, root);

	btrfs_put_fs_root(root);

	btrfs_put_root(root);

	if (IS_ERR(inode)) {

		err = PTR_ERR(inode);

		goto fail;

fs/btrfs/extent-tree.c

+1 −1
Original line number Diff line number Diff line
@@ -5418,7 +5418,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root, 
	} else {

		free_extent_buffer(root->node);

		free_extent_buffer(root->commit_root);

		btrfs_put_fs_root(root);

		btrfs_put_root(root);

	}

	root_dropped = true;

out_end_trans:

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