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btrfs: call functions that always use the same root with fs_info instead 

There are many functions that are always called with the same root
argument.  Rather than passing the same root every time, we can
pass an fs_info pointer instead and have the function get the root
pointer itself.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Jeff Mahoney 2016-06-21 21:16:51 -04:00 committed by David Sterba
parent 5b4aacefb8
commit 6bccf3ab1e
14 changed files with 115 additions and 102 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
fs/btrfs/ctree.h
View File

@ -2640,7 +2640,7 @@ int btrfs_setup_space_cache(struct btrfs_trans_handle *trans,
int btrfs_extent_readonly(struct btrfs_root *root, u64 bytenr);
int btrfs_free_block_groups(struct btrfs_fs_info *info);
int btrfs_read_block_groups(struct btrfs_fs_info *info);
int btrfs_can_relocate(struct btrfs_root *root, u64 bytenr);
int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr);
int btrfs_make_block_group(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 bytes_used,
u64 type, u64 chunk_objectid, u64 chunk_offset,
@ -2649,7 +2649,7 @@ struct btrfs_trans_handle *btrfs_start_trans_remove_block_group(
struct btrfs_fs_info *fs_info,
const u64 chunk_offset);
int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 group_start,
struct btrfs_fs_info *fs_info, u64 group_start,
struct extent_map *em);
void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info);
void btrfs_get_block_group_trimming(struct btrfs_block_group_cache *cache);
@ -2935,11 +2935,11 @@ int btrfs_old_root_level(struct btrfs_root *root, u64 time_seq);
/* root-item.c */
int btrfs_add_root_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *tree_root,
struct btrfs_fs_info *fs_info,
u64 root_id, u64 ref_id, u64 dirid, u64 sequence,
const char *name, int name_len);
int btrfs_del_root_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *tree_root,
struct btrfs_fs_info *fs_info,
u64 root_id, u64 ref_id, u64 dirid, u64 *sequence,
const char *name, int name_len);
int btrfs_del_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
@ -2954,7 +2954,7 @@ int __must_check btrfs_update_root(struct btrfs_trans_handle *trans,
int btrfs_find_root(struct btrfs_root *root, struct btrfs_key *search_key,
struct btrfs_path *path, struct btrfs_root_item *root_item,
struct btrfs_key *root_key);
int btrfs_find_orphan_roots(struct btrfs_root *tree_root);
int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info);
void btrfs_set_root_node(struct btrfs_root_item *item,
struct extent_buffer *node);
void btrfs_check_and_init_root_item(struct btrfs_root_item *item);
@ -2963,10 +2963,10 @@ void btrfs_update_root_times(struct btrfs_trans_handle *trans,
/* uuid-tree.c */
int btrfs_uuid_tree_add(struct btrfs_trans_handle *trans,
struct btrfs_root *uuid_root, u8 *uuid, u8 type,
struct btrfs_fs_info *fs_info, u8 *uuid, u8 type,
u64 subid);
int btrfs_uuid_tree_rem(struct btrfs_trans_handle *trans,
struct btrfs_root *uuid_root, u8 *uuid, u8 type,
struct btrfs_fs_info *fs_info, u8 *uuid, u8 type,
u64 subid);
int btrfs_uuid_tree_iterate(struct btrfs_fs_info *fs_info,
int (*check_func)(struct btrfs_fs_info *, u8 *, u8,
@ -3613,7 +3613,7 @@ static inline int btrfs_init_acl(struct btrfs_trans_handle *trans,
#endif
/* relocation.c */
int btrfs_relocate_block_group(struct btrfs_root *root, u64 group_start);
int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start);
int btrfs_init_reloc_root(struct btrfs_trans_handle *trans,
struct btrfs_root *root);
int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,

44
fs/btrfs/disk-io.c
View File

@ -2296,8 +2296,7 @@ static void btrfs_init_balance(struct btrfs_fs_info *fs_info)
init_waitqueue_head(&fs_info->balance_wait_q);
}
static void btrfs_init_btree_inode(struct btrfs_fs_info *fs_info,
struct btrfs_root *tree_root)
static void btrfs_init_btree_inode(struct btrfs_fs_info *fs_info)
{
fs_info->btree_inode->i_ino = BTRFS_BTREE_INODE_OBJECTID;
set_nlink(fs_info->btree_inode, 1);
@ -2317,7 +2316,7 @@ static void btrfs_init_btree_inode(struct btrfs_fs_info *fs_info,
BTRFS_I(fs_info->btree_inode)->io_tree.ops = &btree_extent_io_ops;
BTRFS_I(fs_info->btree_inode)->root = tree_root;
BTRFS_I(fs_info->btree_inode)->root = fs_info->tree_root;
memset(&BTRFS_I(fs_info->btree_inode)->location, 0,
sizeof(struct btrfs_key));
set_bit(BTRFS_INODE_DUMMY,
@ -2485,7 +2484,7 @@ static int btrfs_replay_log(struct btrfs_fs_info *fs_info,
}
if (fs_info->sb->s_flags & MS_RDONLY) {
ret = btrfs_commit_super(tree_root);
ret = btrfs_commit_super(fs_info);
if (ret)
return ret;
}
@ -2493,13 +2492,15 @@ static int btrfs_replay_log(struct btrfs_fs_info *fs_info,
return 0;
}
static int btrfs_read_roots(struct btrfs_fs_info *fs_info,
struct btrfs_root *tree_root)
static int btrfs_read_roots(struct btrfs_fs_info *fs_info)
{
struct btrfs_root *tree_root = fs_info->tree_root;
struct btrfs_root *root;
struct btrfs_key location;
int ret;
BUG_ON(!fs_info->tree_root);
location.objectid = BTRFS_EXTENT_TREE_OBJECTID;
location.type = BTRFS_ROOT_ITEM_KEY;
location.offset = 0;
@ -2710,7 +2711,7 @@ int open_ctree(struct super_block *sb,
sb->s_blocksize_bits = blksize_bits(4096);
sb->s_bdi = &fs_info->bdi;
btrfs_init_btree_inode(fs_info, tree_root);
btrfs_init_btree_inode(fs_info);
spin_lock_init(&fs_info->block_group_cache_lock);
fs_info->block_group_cache_tree = RB_ROOT;
@ -2908,7 +2909,7 @@ int open_ctree(struct super_block *sb,
sb->s_blocksize_bits = blksize_bits(sectorsize);
mutex_lock(&fs_info->chunk_mutex);
ret = btrfs_read_sys_array(tree_root);
ret = btrfs_read_sys_array(fs_info);
mutex_unlock(&fs_info->chunk_mutex);
if (ret) {
btrfs_err(fs_info, "failed to read the system array: %d", ret);
@ -2985,7 +2986,7 @@ retry_root_backup:
mutex_unlock(&tree_root->objectid_mutex);
ret = btrfs_read_roots(fs_info, tree_root);
ret = btrfs_read_roots(fs_info);
if (ret)
goto recovery_tree_root;
@ -3106,7 +3107,7 @@ retry_root_backup:
}
}
ret = btrfs_find_orphan_roots(tree_root);
ret = btrfs_find_orphan_roots(fs_info);
if (ret)
goto fail_qgroup;
@ -3154,7 +3155,7 @@ retry_root_backup:
if (ret) {
btrfs_warn(fs_info,
"failed to clear free space tree: %d", ret);
close_ctree(tree_root);
close_ctree(fs_info);
return ret;
}
}
@ -3166,7 +3167,7 @@ retry_root_backup:
if (ret) {
btrfs_warn(fs_info,
"failed to create free space tree: %d", ret);
close_ctree(tree_root);
close_ctree(fs_info);
return ret;
}
}
@ -3175,7 +3176,7 @@ retry_root_backup:
if ((ret = btrfs_orphan_cleanup(fs_info->fs_root)) ||
(ret = btrfs_orphan_cleanup(fs_info->tree_root))) {
up_read(&fs_info->cleanup_work_sem);
close_ctree(tree_root);
close_ctree(fs_info);
return ret;
}
up_read(&fs_info->cleanup_work_sem);
@ -3183,14 +3184,14 @@ retry_root_backup:
ret = btrfs_resume_balance_async(fs_info);
if (ret) {
btrfs_warn(fs_info, "failed to resume balance: %d", ret);
close_ctree(tree_root);
close_ctree(fs_info);
return ret;
}
ret = btrfs_resume_dev_replace_async(fs_info);
if (ret) {
btrfs_warn(fs_info, "failed to resume device replace: %d", ret);
close_ctree(tree_root);
close_ctree(fs_info);
return ret;
}
@ -3202,7 +3203,7 @@ retry_root_backup:
if (ret) {
btrfs_warn(fs_info,
"failed to create the UUID tree: %d", ret);
close_ctree(tree_root);
close_ctree(fs_info);
return ret;
}
} else if (btrfs_test_opt(tree_root->fs_info, RESCAN_UUID_TREE) ||
@ -3213,7 +3214,7 @@ retry_root_backup:
if (ret) {
btrfs_warn(fs_info,
"failed to check the UUID tree: %d", ret);
close_ctree(tree_root);
close_ctree(fs_info);
return ret;
}
} else {
@ -3886,8 +3887,9 @@ int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info)
return err;
}
int btrfs_commit_super(struct btrfs_root *root)
int btrfs_commit_super(struct btrfs_fs_info *fs_info)
{
struct btrfs_root *root = fs_info->tree_root;
struct btrfs_trans_handle *trans;
mutex_lock(&root->fs_info->cleaner_mutex);
@ -3905,9 +3907,9 @@ int btrfs_commit_super(struct btrfs_root *root)
return btrfs_commit_transaction(trans, root);
}
void close_ctree(struct btrfs_root *root)
void close_ctree(struct btrfs_fs_info *fs_info)
{
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *root = fs_info->tree_root;
int ret;
set_bit(BTRFS_FS_CLOSING_START, &fs_info->flags);
@ -3944,7 +3946,7 @@ void close_ctree(struct btrfs_root *root)
*/
btrfs_delete_unused_bgs(root->fs_info);
ret = btrfs_commit_super(root);
ret = btrfs_commit_super(fs_info);
if (ret)
btrfs_err(fs_info, "commit super ret %d", ret);
}

4
fs/btrfs/disk-io.h
View File

@ -56,13 +56,13 @@ void clean_tree_block(struct btrfs_trans_handle *trans,
int open_ctree(struct super_block *sb,
struct btrfs_fs_devices *fs_devices,
char *options);
void close_ctree(struct btrfs_root *root);
void close_ctree(struct btrfs_fs_info *fs_info);
int write_ctree_super(struct btrfs_trans_handle *trans,
struct btrfs_root *root, int max_mirrors);
struct buffer_head *btrfs_read_dev_super(struct block_device *bdev);
int btrfs_read_dev_one_super(struct block_device *bdev, int copy_num,
struct buffer_head **bh_ret);
int btrfs_commit_super(struct btrfs_root *root);
int btrfs_commit_super(struct btrfs_fs_info *fs_info);
struct btrfs_root *btrfs_read_fs_root(struct btrfs_root *tree_root,
struct btrfs_key *location);
int btrfs_init_fs_root(struct btrfs_root *root);

20
fs/btrfs/extent-tree.c
View File

@ -9514,8 +9514,9 @@ void btrfs_dec_block_group_ro(struct btrfs_root *root,
* @return - -1 if it's not a good idea to relocate this block group, 0 if its
* ok to go ahead and try.
*/
int btrfs_can_relocate(struct btrfs_root *root, u64 bytenr)
int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr)
{
struct btrfs_root *root = fs_info->extent_root;
struct btrfs_block_group_cache *block_group;
struct btrfs_space_info *space_info;
struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;
@ -9659,9 +9660,11 @@ out:
return ret;
}
static int find_first_block_group(struct btrfs_root *root,
struct btrfs_path *path, struct btrfs_key *key)
static int find_first_block_group(struct btrfs_fs_info *fs_info,
struct btrfs_path *path,
struct btrfs_key *key)
{
struct btrfs_root *root = fs_info->extent_root;
int ret = 0;
struct btrfs_key found_key;
struct extent_buffer *leaf;
@ -9961,7 +9964,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
need_clear = 1;
while (1) {
ret = find_first_block_group(root, path, &key);
ret = find_first_block_group(info, path, &key);
if (ret > 0)
break;
if (ret != 0)
@ -10140,7 +10143,7 @@ void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans,
sizeof(item));
if (ret)
btrfs_abort_transaction(trans, ret);
ret = btrfs_finish_chunk_alloc(trans, extent_root,
ret = btrfs_finish_chunk_alloc(trans, extent_root->fs_info,
key.objectid, key.offset);
if (ret)
btrfs_abort_transaction(trans, ret);
@ -10263,9 +10266,10 @@ static void clear_avail_alloc_bits(struct btrfs_fs_info *fs_info, u64 flags)
}
int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 group_start,
struct btrfs_fs_info *fs_info, u64 group_start,
struct extent_map *em)
{
struct btrfs_root *root = fs_info->extent_root;
struct btrfs_path *path;
struct btrfs_block_group_cache *block_group;
struct btrfs_free_cluster *cluster;
@ -10279,9 +10283,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
struct btrfs_caching_control *caching_ctl = NULL;
bool remove_em;
root = root->fs_info->extent_root;
block_group = btrfs_lookup_block_group(root->fs_info, group_start);
block_group = btrfs_lookup_block_group(fs_info, group_start);
BUG_ON(!block_group);
BUG_ON(!block_group->ro);

6
fs/btrfs/inode.c
View File

@ -4179,7 +4179,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
}
btrfs_release_path(path);
ret = btrfs_del_root_ref(trans, root->fs_info->tree_root,
ret = btrfs_del_root_ref(trans, root->fs_info,
objectid, root->root_key.objectid,
dir_ino, &index, name, name_len);
if (ret < 0) {
@ -6296,7 +6296,7 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
}
if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
ret = btrfs_add_root_ref(trans, root->fs_info->tree_root,
ret = btrfs_add_root_ref(trans, root->fs_info,
key.objectid, root->root_key.objectid,
parent_ino, index, name, name_len);
} else if (add_backref) {
@ -6332,7 +6332,7 @@ fail_dir_item:
if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
u64 local_index;
int err;
err = btrfs_del_root_ref(trans, root->fs_info->tree_root,
err = btrfs_del_root_ref(trans, root->fs_info,
key.objectid, root->root_key.objectid,
parent_ino, &local_index, name, name_len);

18
fs/btrfs/ioctl.c
View File

@ -596,14 +596,13 @@ static noinline int create_subvol(struct inode *dir,
ret = btrfs_update_inode(trans, root, dir);
BUG_ON(ret);
ret = btrfs_add_root_ref(trans, root->fs_info->tree_root,
ret = btrfs_add_root_ref(trans, root->fs_info,
objectid, root->root_key.objectid,
btrfs_ino(dir), index, name, namelen);
BUG_ON(ret);
ret = btrfs_uuid_tree_add(trans, root->fs_info->uuid_root,
root_item->uuid, BTRFS_UUID_KEY_SUBVOL,
objectid);
ret = btrfs_uuid_tree_add(trans, root->fs_info, root_item->uuid,
BTRFS_UUID_KEY_SUBVOL, objectid);
if (ret)
btrfs_abort_transaction(trans, ret);
@ -2520,8 +2519,8 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
}
}
ret = btrfs_uuid_tree_rem(trans, root->fs_info->uuid_root,
dest->root_item.uuid, BTRFS_UUID_KEY_SUBVOL,
ret = btrfs_uuid_tree_rem(trans, root->fs_info, dest->root_item.uuid,
BTRFS_UUID_KEY_SUBVOL,
dest->root_key.objectid);
if (ret && ret != -ENOENT) {
btrfs_abort_transaction(trans, ret);
@ -2529,7 +2528,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
goto out_end_trans;
}
if (!btrfs_is_empty_uuid(dest->root_item.received_uuid)) {
ret = btrfs_uuid_tree_rem(trans, root->fs_info->uuid_root,
ret = btrfs_uuid_tree_rem(trans, root->fs_info,
dest->root_item.received_uuid,
BTRFS_UUID_KEY_RECEIVED_SUBVOL,
dest->root_key.objectid);
@ -5148,7 +5147,7 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file,
BTRFS_UUID_SIZE);
if (received_uuid_changed &&
!btrfs_is_empty_uuid(root_item->received_uuid))
btrfs_uuid_tree_rem(trans, root->fs_info->uuid_root,
btrfs_uuid_tree_rem(trans, root->fs_info,
root_item->received_uuid,
BTRFS_UUID_KEY_RECEIVED_SUBVOL,
root->root_key.objectid);
@ -5167,8 +5166,7 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file,
goto out;
}
if (received_uuid_changed && !btrfs_is_empty_uuid(sa->uuid)) {
ret = btrfs_uuid_tree_add(trans, root->fs_info->uuid_root,
sa->uuid,
ret = btrfs_uuid_tree_add(trans, root->fs_info, sa->uuid,
BTRFS_UUID_KEY_RECEIVED_SUBVOL,
root->root_key.objectid);
if (ret < 0 && ret != -EEXIST) {

4
fs/btrfs/relocation.c
View File

@ -4306,9 +4306,9 @@ static void describe_relocation(struct btrfs_fs_info *fs_info,
/*
* function to relocate all extents in a block group.
*/
int btrfs_relocate_block_group(struct btrfs_root *extent_root, u64 group_start)
int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start)
{
struct btrfs_fs_info *fs_info = extent_root->fs_info;
struct btrfs_root *extent_root = fs_info->extent_root;
struct reloc_control *rc;
struct inode *inode;
struct btrfs_path *path;

9
fs/btrfs/root-tree.c
View File

@ -216,8 +216,9 @@ int btrfs_insert_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
return btrfs_insert_item(trans, root, key, item, sizeof(*item));
}
int btrfs_find_orphan_roots(struct btrfs_root *tree_root)
int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info)
{
struct btrfs_root *tree_root = fs_info->tree_root;
struct extent_buffer *leaf;
struct btrfs_path *path;
struct btrfs_key key;
@ -358,11 +359,12 @@ out:
}
int btrfs_del_root_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *tree_root,
struct btrfs_fs_info *fs_info,
u64 root_id, u64 ref_id, u64 dirid, u64 *sequence,
const char *name, int name_len)
{
struct btrfs_root *tree_root = fs_info->tree_root;
struct btrfs_path *path;
struct btrfs_root_ref *ref;
struct extent_buffer *leaf;
@ -429,10 +431,11 @@ out:
* Will return 0, -ENOMEM, or anything from the CoW path
*/
int btrfs_add_root_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *tree_root,
struct btrfs_fs_info *fs_info,
u64 root_id, u64 ref_id, u64 dirid, u64 sequence,
const char *name, int name_len)
{
struct btrfs_root *tree_root = fs_info->tree_root;
struct btrfs_key key;
int ret;
struct btrfs_path *path;

13
fs/btrfs/super.c
View File

@ -305,7 +305,7 @@ void __btrfs_panic(struct btrfs_fs_info *fs_info, const char *function,
static void btrfs_put_super(struct super_block *sb)
{
close_ctree(btrfs_sb(sb)->tree_root);
close_ctree(btrfs_sb(sb));
}
enum {
@ -1173,7 +1173,7 @@ static int btrfs_fill_super(struct super_block *sb,
return 0;
fail_close:
close_ctree(fs_info->tree_root);
close_ctree(fs_info);
return err;
}
@ -1784,7 +1784,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
btrfs_scrub_cancel(fs_info);
btrfs_pause_balance(fs_info);
ret = btrfs_commit_super(root);
ret = btrfs_commit_super(fs_info);
if (ret)
goto restore;
} else {
@ -1901,9 +1901,10 @@ static inline void btrfs_descending_sort_devices(
* The helper to calc the free space on the devices that can be used to store
* file data.
*/
static int btrfs_calc_avail_data_space(struct btrfs_root *root, u64 *free_bytes)
static int btrfs_calc_avail_data_space(struct btrfs_fs_info *fs_info,
u64 *free_bytes)
{
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *root = fs_info->tree_root;
struct btrfs_device_info *devices_info;
struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
struct btrfs_device *device;
@ -2137,7 +2138,7 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf)
spin_unlock(&block_rsv->lock);
buf->f_bavail = div_u64(total_free_data, factor);
ret = btrfs_calc_avail_data_space(fs_info->tree_root, &total_free_data);
ret = btrfs_calc_avail_data_space(fs_info, &total_free_data);
if (ret)
return ret;
buf->f_bavail += div_u64(total_free_data, factor);

6
fs/btrfs/transaction.c
View File

@ -1571,7 +1571,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
/*
* insert root back/forward references
*/
ret = btrfs_add_root_ref(trans, tree_root, objectid,
ret = btrfs_add_root_ref(trans, fs_info, objectid,
parent_root->root_key.objectid,
btrfs_ino(parent_inode), index,
dentry->d_name.name, dentry->d_name.len);
@ -1631,14 +1631,14 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
btrfs_abort_transaction(trans, ret);
goto fail;
}
ret = btrfs_uuid_tree_add(trans, fs_info->uuid_root, new_uuid.b,
ret = btrfs_uuid_tree_add(trans, fs_info, new_uuid.b,
BTRFS_UUID_KEY_SUBVOL, objectid);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto fail;
}
if (!btrfs_is_empty_uuid(new_root_item->received_uuid)) {
ret = btrfs_uuid_tree_add(trans, fs_info->uuid_root,
ret = btrfs_uuid_tree_add(trans, fs_info,
new_root_item->received_uuid,
BTRFS_UUID_KEY_RECEIVED_SUBVOL,
objectid);

10
fs/btrfs/uuid-tree.c
View File

@ -92,9 +92,10 @@ out:
}
int btrfs_uuid_tree_add(struct btrfs_trans_handle *trans,
struct btrfs_root *uuid_root, u8 *uuid, u8 type,
struct btrfs_fs_info *fs_info, u8 *uuid, u8 type,
u64 subid_cpu)
{
struct btrfs_root *uuid_root = fs_info->uuid_root;
int ret;
struct btrfs_path *path = NULL;
struct btrfs_key key;
@ -138,7 +139,7 @@ int btrfs_uuid_tree_add(struct btrfs_trans_handle *trans,
offset = btrfs_item_ptr_offset(eb, slot);
offset += btrfs_item_size_nr(eb, slot) - sizeof(subid_le);
} else if (ret < 0) {
btrfs_warn(uuid_root->fs_info,
btrfs_warn(fs_info,
"insert uuid item failed %d (0x%016llx, 0x%016llx) type %u!",
ret, (unsigned long long)key.objectid,
(unsigned long long)key.offset, type);
@ -156,9 +157,10 @@ out:
}
int btrfs_uuid_tree_rem(struct btrfs_trans_handle *trans,
struct btrfs_root *uuid_root, u8 *uuid, u8 type,
struct btrfs_fs_info *fs_info, u8 *uuid, u8 type,
u64 subid)
{
struct btrfs_root *uuid_root = fs_info->uuid_root;
int ret;
struct btrfs_path *path = NULL;
struct btrfs_key key;
@ -250,7 +252,7 @@ static int btrfs_uuid_iter_rem(struct btrfs_root *uuid_root, u8 *uuid, u8 type,
goto out;
}
ret = btrfs_uuid_tree_rem(trans, uuid_root, uuid, type, subid);
ret = btrfs_uuid_tree_rem(trans, uuid_root->fs_info, uuid, type, subid);
btrfs_end_transaction(trans, uuid_root);
out:

47
fs/btrfs/volumes.c
View File

@ -2749,9 +2749,10 @@ out:
return ret;
}
static int btrfs_del_sys_chunk(struct btrfs_root *root, u64 chunk_objectid, u64
chunk_offset)
static int btrfs_del_sys_chunk(struct btrfs_fs_info *fs_info,
u64 chunk_objectid, u64 chunk_offset)
{
struct btrfs_root *root = fs_info->chunk_root;
struct btrfs_super_block *super_copy = root->fs_info->super_copy;
struct btrfs_disk_key *disk_key;
struct btrfs_chunk *chunk;
@ -2879,17 +2880,18 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
goto out;
}
trace_btrfs_chunk_free(root, map, chunk_offset, em->len);
trace_btrfs_chunk_free(fs_info, map, chunk_offset, em->len);
if (map->type & BTRFS_BLOCK_GROUP_SYSTEM) {
ret = btrfs_del_sys_chunk(root, chunk_objectid, chunk_offset);
ret = btrfs_del_sys_chunk(fs_info, chunk_objectid,
chunk_offset);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto out;
}
}
ret = btrfs_remove_block_group(trans, extent_root, chunk_offset, em);
ret = btrfs_remove_block_group(trans, fs_info, chunk_offset, em);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto out;
@ -2922,13 +2924,13 @@ static int btrfs_relocate_chunk(struct btrfs_fs_info *fs_info, u64 chunk_offset)
*/
ASSERT(mutex_is_locked(&root->fs_info->delete_unused_bgs_mutex));
ret = btrfs_can_relocate(extent_root, chunk_offset);
ret = btrfs_can_relocate(root->fs_info, chunk_offset);
if (ret)
return -ENOSPC;
/* step one, relocate all the extents inside this chunk */
btrfs_scrub_pause(root);
ret = btrfs_relocate_block_group(extent_root, chunk_offset);
ret = btrfs_relocate_block_group(root->fs_info, chunk_offset);
btrfs_scrub_continue(root);
if (ret)
return ret;
@ -3025,9 +3027,10 @@ error:
return ret;
}
static int insert_balance_item(struct btrfs_root *root,
static int insert_balance_item(struct btrfs_fs_info *fs_info,
struct btrfs_balance_control *bctl)
{
struct btrfs_root *root = fs_info->tree_root;
struct btrfs_trans_handle *trans;
struct btrfs_balance_item *item;
struct btrfs_disk_balance_args disk_bargs;
@ -3078,8 +3081,9 @@ out:
return ret;
}
static int del_balance_item(struct btrfs_root *root)
static int del_balance_item(struct btrfs_fs_info *fs_info)
{
struct btrfs_root *root = fs_info->tree_root;
struct btrfs_trans_handle *trans;
struct btrfs_path *path;
struct btrfs_key key;
@ -3736,7 +3740,7 @@ static void __cancel_balance(struct btrfs_fs_info *fs_info)
int ret;
unset_balance_control(fs_info);
ret = del_balance_item(fs_info->tree_root);
ret = del_balance_item(fs_info);
if (ret)
btrfs_handle_fs_error(fs_info, ret, NULL);
@ -3869,7 +3873,7 @@ int btrfs_balance(struct btrfs_balance_control *bctl,
bctl->sys.target));
}
ret = insert_balance_item(fs_info->tree_root, bctl);
ret = insert_balance_item(fs_info, bctl);
if (ret && ret != -EEXIST)
goto out;
@ -4161,7 +4165,7 @@ static int btrfs_uuid_scan_kthread(void *data)
}
update_tree:
if (!btrfs_is_empty_uuid(root_item.uuid)) {
ret = btrfs_uuid_tree_add(trans, fs_info->uuid_root,
ret = btrfs_uuid_tree_add(trans, fs_info,
root_item.uuid,
BTRFS_UUID_KEY_SUBVOL,
key.objectid);
@ -4173,7 +4177,7 @@ update_tree:
}
if (!btrfs_is_empty_uuid(root_item.received_uuid)) {
ret = btrfs_uuid_tree_add(trans, fs_info->uuid_root,
ret = btrfs_uuid_tree_add(trans, fs_info,
root_item.received_uuid,
BTRFS_UUID_KEY_RECEIVED_SUBVOL,
key.objectid);
@ -4816,7 +4820,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
num_bytes = stripe_size * data_stripes;
trace_btrfs_chunk_alloc(info->chunk_root, map, start, num_bytes);
trace_btrfs_chunk_alloc(info, map, start, num_bytes);
em = alloc_extent_map();
if (!em) {
@ -4884,11 +4888,12 @@ error:
}
int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,
struct btrfs_root *extent_root,
struct btrfs_fs_info *fs_info,
u64 chunk_offset, u64 chunk_size)
{
struct btrfs_root *extent_root = fs_info->extent_root;
struct btrfs_root *chunk_root = fs_info->chunk_root;
struct btrfs_key key;
struct btrfs_root *chunk_root = extent_root->fs_info->chunk_root;
struct btrfs_device *device;
struct btrfs_chunk *chunk;
struct btrfs_stripe *stripe;
@ -6660,9 +6665,9 @@ static int read_one_dev(struct btrfs_root *root,
return ret;
}
int btrfs_read_sys_array(struct btrfs_root *root)
int btrfs_read_sys_array(struct btrfs_fs_info *fs_info)
{
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *root = fs_info->tree_root;
struct btrfs_super_block *super_copy = fs_info->super_copy;
struct extent_buffer *sb;
struct btrfs_disk_key *disk_key;
@ -6955,9 +6960,10 @@ out:
}
static int update_dev_stat_item(struct btrfs_trans_handle *trans,
struct btrfs_root *dev_root,
struct btrfs_fs_info *fs_info,
struct btrfs_device *device)
{
struct btrfs_root *dev_root = fs_info->dev_root;
struct btrfs_path *path;
struct btrfs_key key;
struct extent_buffer *eb;
@ -7023,7 +7029,6 @@ out:
int btrfs_run_dev_stats(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info)
{
struct btrfs_root *dev_root = fs_info->dev_root;
struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
struct btrfs_device *device;
int stats_cnt;
@ -7035,7 +7040,7 @@ int btrfs_run_dev_stats(struct btrfs_trans_handle *trans,
continue;
stats_cnt = atomic_read(&device->dev_stats_ccnt);
ret = update_dev_stat_item(trans, dev_root, device);
ret = update_dev_stat_item(trans, fs_info, device);
if (!ret)
atomic_sub(stats_cnt, &device->dev_stats_ccnt);
}

4
fs/btrfs/volumes.h
View File

@ -406,7 +406,7 @@ int btrfs_map_sblock(struct btrfs_fs_info *fs_info, enum btrfs_map_op op,
int btrfs_rmap_block(struct btrfs_fs_info *fs_info,
u64 chunk_start, u64 physical, u64 devid,
u64 **logical, int *naddrs, int *stripe_len);
int btrfs_read_sys_array(struct btrfs_root *root);
int btrfs_read_sys_array(struct btrfs_fs_info *fs_info);
int btrfs_read_chunk_tree(struct btrfs_fs_info *fs_info);
int btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
struct btrfs_root *extent_root, u64 type);
@ -480,7 +480,7 @@ unsigned long btrfs_full_stripe_len(struct btrfs_root *root,
struct btrfs_mapping_tree *map_tree,
u64 logical);
int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,
struct btrfs_root *extent_root,
struct btrfs_fs_info *fs_info,
u64 chunk_offset, u64 chunk_size);
int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info, u64 chunk_offset);

16
include/trace/events/btrfs.h
View File

@ -698,10 +698,10 @@ DEFINE_EVENT(btrfs_delayed_ref_head, run_delayed_ref_head,
DECLARE_EVENT_CLASS(btrfs__chunk,
TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
TP_PROTO(struct btrfs_fs_info *fs_info, struct map_lookup *map,
u64 offset, u64 size),
TP_ARGS(root, map, offset, size),
TP_ARGS(fs_info, map, offset, size),
TP_STRUCT__entry_btrfs(
__field( int, num_stripes )
@ -712,13 +712,13 @@ DECLARE_EVENT_CLASS(btrfs__chunk,
__field( u64, root_objectid )
),
TP_fast_assign_btrfs(root->fs_info,
TP_fast_assign_btrfs(fs_info,
__entry->num_stripes = map->num_stripes;
__entry->type = map->type;
__entry->sub_stripes = map->sub_stripes;
__entry->offset = offset;
__entry->size = size;
__entry->root_objectid = root->root_key.objectid;
__entry->root_objectid = fs_info->chunk_root->root_key.objectid;
),
TP_printk_btrfs("root = %llu(%s), offset = %llu, size = %llu, "
@ -732,18 +732,18 @@ DECLARE_EVENT_CLASS(btrfs__chunk,
DEFINE_EVENT(btrfs__chunk, btrfs_chunk_alloc,
TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
TP_PROTO(struct btrfs_fs_info *fs_info, struct map_lookup *map,
u64 offset, u64 size),
TP_ARGS(root, map, offset, size)
TP_ARGS(fs_info, map, offset, size)
);
DEFINE_EVENT(btrfs__chunk, btrfs_chunk_free,
TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
TP_PROTO(struct btrfs_fs_info *fs_info, struct map_lookup *map,
u64 offset, u64 size),
TP_ARGS(root, map, offset, size)
TP_ARGS(fs_info, map, offset, size)
);
TRACE_EVENT(btrfs_cow_block,