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btrfs: call functions that overwrite their root parameter with fs_info

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There are 11 functions that accept a root parameter and immediately
overwrite it.  We can pass those an fs_info pointer instead.

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 10:40:19 -04:00 committed by David Sterba
parent 515bdc4790
commit 5b4aacefb8
10 changed files with 52 additions and 60 deletions
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4
fs/btrfs/ctree.h
View File

@ -2639,7 +2639,7 @@ int btrfs_setup_space_cache(struct btrfs_trans_handle *trans,
struct btrfs_root *root);
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_root *root);
int btrfs_read_block_groups(struct btrfs_fs_info *info);
int btrfs_can_relocate(struct btrfs_root *root, u64 bytenr);
int btrfs_make_block_group(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 bytes_used,
@ -3055,7 +3055,7 @@ int btrfs_find_name_in_ext_backref(struct btrfs_path *path,
/* file-item.c */
struct btrfs_dio_private;
int btrfs_del_csums(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 bytenr, u64 len);
struct btrfs_fs_info *fs_info, u64 bytenr, u64 len);
int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode,
struct bio *bio, u32 *dst);
int btrfs_lookup_bio_sums_dio(struct btrfs_root *root, struct inode *inode,

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

@ -2937,7 +2937,7 @@ int open_ctree(struct super_block *sb,
read_extent_buffer(chunk_root->node, fs_info->chunk_tree_uuid,
btrfs_header_chunk_tree_uuid(chunk_root->node), BTRFS_UUID_SIZE);
ret = btrfs_read_chunk_tree(chunk_root);
ret = btrfs_read_chunk_tree(fs_info);
if (ret) {
btrfs_err(fs_info, "failed to read chunk tree: %d", ret);
goto fail_tree_roots;
@ -3038,7 +3038,7 @@ retry_root_backup:
goto fail_sysfs;
}
ret = btrfs_read_block_groups(fs_info->extent_root);
ret = btrfs_read_block_groups(fs_info);
if (ret) {
btrfs_err(fs_info, "failed to read block groups: %d", ret);
goto fail_sysfs;

17
fs/btrfs/extent-tree.c
View File

@ -2414,7 +2414,7 @@ static int run_one_delayed_ref(struct btrfs_trans_handle *trans,
btrfs_pin_extent(root, node->bytenr,
node->num_bytes, 1);
if (head->is_data) {
ret = btrfs_del_csums(trans, root,
ret = btrfs_del_csums(trans, root->fs_info,
node->bytenr,
node->num_bytes);
}
@ -3622,7 +3622,8 @@ again:
if (cache->disk_cache_state == BTRFS_DC_SETUP) {
cache->io_ctl.inode = NULL;
ret = btrfs_write_out_cache(root, trans, cache, path);
ret = btrfs_write_out_cache(root->fs_info, trans,
cache, path);
if (ret == 0 && cache->io_ctl.inode) {
num_started++;
should_put = 0;
@ -3774,7 +3775,8 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
if (!ret && cache->disk_cache_state == BTRFS_DC_SETUP) {
cache->io_ctl.inode = NULL;
ret = btrfs_write_out_cache(root, trans, cache, path);
ret = btrfs_write_out_cache(root->fs_info, trans,
cache, path);
if (ret == 0 && cache->io_ctl.inode) {
num_started++;
should_put = 0;
@ -7068,7 +7070,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
btrfs_release_path(path);
if (is_data) {
ret = btrfs_del_csums(trans, root, bytenr, num_bytes);
ret = btrfs_del_csums(trans, info, bytenr, num_bytes);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto out;
@ -9925,12 +9927,12 @@ btrfs_create_block_group_cache(struct btrfs_root *root, u64 start, u64 size)
return cache;
}
int btrfs_read_block_groups(struct btrfs_root *root)
int btrfs_read_block_groups(struct btrfs_fs_info *info)
{
struct btrfs_root *root = info->extent_root;
struct btrfs_path *path;
int ret;
struct btrfs_block_group_cache *cache;
struct btrfs_fs_info *info = root->fs_info;
struct btrfs_space_info *space_info;
struct btrfs_key key;
struct btrfs_key found_key;
@ -9943,7 +9945,6 @@ int btrfs_read_block_groups(struct btrfs_root *root)
feature = btrfs_super_incompat_flags(info->super_copy);
mixed = !!(feature & BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS);
root = info->extent_root;
key.objectid = 0;
key.offset = 0;
key.type = BTRFS_BLOCK_GROUP_ITEM_KEY;
@ -10733,7 +10734,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info)
* Btrfs_remove_chunk will abort the transaction if things go
* horribly wrong.
*/
ret = btrfs_remove_chunk(trans, root,
ret = btrfs_remove_chunk(trans, fs_info,
block_group->key.objectid);
if (ret) {

5
fs/btrfs/file-item.c
View File

@ -590,8 +590,9 @@ static noinline void truncate_one_csum(struct btrfs_root *root,
* range of bytes.
*/
int btrfs_del_csums(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 bytenr, u64 len)
struct btrfs_fs_info *fs_info, u64 bytenr, u64 len)
{
struct btrfs_root *root = fs_info->csum_root;
struct btrfs_path *path;
struct btrfs_key key;
u64 end_byte = bytenr + len;
@ -601,8 +602,6 @@ int btrfs_del_csums(struct btrfs_trans_handle *trans,
u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
int blocksize_bits = root->fs_info->sb->s_blocksize_bits;
root = root->fs_info->csum_root;
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;

5
fs/btrfs/free-space-cache.c
View File

@ -1350,17 +1350,16 @@ out_nospc:
goto out;
}
int btrfs_write_out_cache(struct btrfs_root *root,
int btrfs_write_out_cache(struct btrfs_fs_info *fs_info,
struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path)
{
struct btrfs_root *root = fs_info->tree_root;
struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl;
struct inode *inode;
int ret = 0;
root = root->fs_info->tree_root;
spin_lock(&block_group->lock);
if (block_group->disk_cache_state < BTRFS_DC_SETUP) {
spin_unlock(&block_group->lock);

2
fs/btrfs/free-space-cache.h
View File

@ -72,7 +72,7 @@ int btrfs_wait_cache_io(struct btrfs_root *root,
struct btrfs_block_group_cache *block_group,
struct btrfs_io_ctl *io_ctl,
struct btrfs_path *path, u64 offset);
int btrfs_write_out_cache(struct btrfs_root *root,
int btrfs_write_out_cache(struct btrfs_fs_info *fs_info,
struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path);

9
fs/btrfs/transaction.c
View File

@ -1219,10 +1219,9 @@ void btrfs_add_dead_root(struct btrfs_root *root)
* update all the cowonly tree roots on disk
*/
static noinline int commit_fs_roots(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
struct btrfs_fs_info *fs_info)
{
struct btrfs_root *gang[8];
struct btrfs_fs_info *fs_info = root->fs_info;
int i;
int ret;
int err = 0;
@ -1236,7 +1235,7 @@ static noinline int commit_fs_roots(struct btrfs_trans_handle *trans,
if (ret == 0)
break;
for (i = 0; i < ret; i++) {
root = gang[i];
struct btrfs_root *root = gang[i];
radix_tree_tag_clear(&fs_info->fs_roots_radix,
(unsigned long)root->root_key.objectid,
BTRFS_ROOT_TRANS_TAG);
@ -1343,7 +1342,7 @@ static int qgroup_account_snapshot(struct btrfs_trans_handle *trans,
*/
mutex_lock(&fs_info->tree_log_mutex);
ret = commit_fs_roots(trans, src);
ret = commit_fs_roots(trans, fs_info);
if (ret)
goto out;
ret = btrfs_qgroup_prepare_account_extents(trans, fs_info);
@ -2132,7 +2131,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
*/
mutex_lock(&root->fs_info->tree_log_mutex);
ret = commit_fs_roots(trans, root);
ret = commit_fs_roots(trans, root->fs_info);
if (ret) {
mutex_unlock(&root->fs_info->tree_log_mutex);
mutex_unlock(&root->fs_info->reloc_mutex);

6
fs/btrfs/tree-log.c
View File

@ -797,9 +797,9 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
list);
if (!ret)
ret = btrfs_del_csums(trans,
root->fs_info->csum_root,
sums->bytenr,
sums->len);
root->fs_info,
sums->bytenr,
sums->len);
if (!ret)
ret = btrfs_csum_file_blocks(trans,
root->fs_info->csum_root,

56
fs/btrfs/volumes.c
View File

@ -1667,9 +1667,10 @@ error:
* the btrfs_device struct should be fully filled in
*/
static int btrfs_add_device(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_fs_info *fs_info,
struct btrfs_device *device)
{
struct btrfs_root *root = fs_info->chunk_root;
int ret;
struct btrfs_path *path;
struct btrfs_dev_item *dev_item;
@ -1677,8 +1678,6 @@ static int btrfs_add_device(struct btrfs_trans_handle *trans,
struct btrfs_key key;
unsigned long ptr;
root = root->fs_info->chunk_root;
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
@ -1737,16 +1736,15 @@ static void update_dev_time(char *path_name)
filp_close(filp, NULL);
}
static int btrfs_rm_dev_item(struct btrfs_root *root,
static int btrfs_rm_dev_item(struct btrfs_fs_info *fs_info,
struct btrfs_device *device)
{
struct btrfs_root *root = fs_info->chunk_root;
int ret;
struct btrfs_path *path;
struct btrfs_key key;
struct btrfs_trans_handle *trans;
root = root->fs_info->chunk_root;
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
@ -1909,7 +1907,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid)
* counter although write_all_supers() is not locked out. This
* could give a filesystem state which requires a degraded mount.
*/
ret = btrfs_rm_dev_item(root->fs_info->chunk_root, device);
ret = btrfs_rm_dev_item(root->fs_info, device);
if (ret)
goto error_undo;
@ -2241,8 +2239,9 @@ static int btrfs_prepare_sprout(struct btrfs_root *root)
* Store the expected generation for seed devices in device items.
*/
static int btrfs_finish_sprout(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
struct btrfs_fs_info *fs_info)
{
struct btrfs_root *root = fs_info->chunk_root;
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_dev_item *dev_item;
@ -2257,7 +2256,6 @@ static int btrfs_finish_sprout(struct btrfs_trans_handle *trans,
if (!path)
return -ENOMEM;
root = root->fs_info->chunk_root;
key.objectid = BTRFS_DEV_ITEMS_OBJECTID;
key.offset = 0;
key.type = BTRFS_DEV_ITEM_KEY;
@ -2452,7 +2450,7 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
}
}
ret = btrfs_add_device(trans, root, device);
ret = btrfs_add_device(trans, root->fs_info, device);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto error_trans;
@ -2461,7 +2459,7 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
if (seeding_dev) {
char fsid_buf[BTRFS_UUID_UNPARSED_SIZE];
ret = btrfs_finish_sprout(trans, root);
ret = btrfs_finish_sprout(trans, root->fs_info);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto error_trans;
@ -2716,14 +2714,14 @@ int btrfs_grow_device(struct btrfs_trans_handle *trans,
}
static int btrfs_free_chunk(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 chunk_objectid,
struct btrfs_fs_info *fs_info, u64 chunk_objectid,
u64 chunk_offset)
{
struct btrfs_root *root = fs_info->chunk_root;
int ret;
struct btrfs_path *path;
struct btrfs_key key;
root = root->fs_info->chunk_root;
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
@ -2800,8 +2798,9 @@ static int btrfs_del_sys_chunk(struct btrfs_root *root, u64 chunk_objectid, u64
}
int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 chunk_offset)
struct btrfs_fs_info *fs_info, u64 chunk_offset)
{
struct btrfs_root *root = fs_info->chunk_root;
struct extent_map_tree *em_tree;
struct extent_map *em;
struct btrfs_root *extent_root = root->fs_info->extent_root;
@ -2811,9 +2810,7 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
int i, ret = 0;
struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices;
/* Just in case */
root = root->fs_info->chunk_root;
em_tree = &root->fs_info->mapping_tree.map_tree;
em_tree = &fs_info->mapping_tree.map_tree;
read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, chunk_offset, 1);
@ -2875,7 +2872,8 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
}
mutex_unlock(&fs_devices->device_list_mutex);
ret = btrfs_free_chunk(trans, root, chunk_objectid, chunk_offset);
ret = btrfs_free_chunk(trans, root->fs_info, chunk_objectid,
chunk_offset);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto out;
@ -2903,15 +2901,13 @@ out:
return ret;
}
static int btrfs_relocate_chunk(struct btrfs_root *root, u64 chunk_offset)
static int btrfs_relocate_chunk(struct btrfs_fs_info *fs_info, u64 chunk_offset)
{
struct btrfs_root *extent_root;
struct btrfs_root *root = fs_info->chunk_root;
struct btrfs_root *extent_root = fs_info->extent_root;
struct btrfs_trans_handle *trans;
int ret;
root = root->fs_info->chunk_root;
extent_root = root->fs_info->extent_root;
/*
* Prevent races with automatic removal of unused block groups.
* After we relocate and before we remove the chunk with offset
@ -2949,7 +2945,7 @@ static int btrfs_relocate_chunk(struct btrfs_root *root, u64 chunk_offset)
* step two, delete the device extents and the
* chunk tree entries
*/
ret = btrfs_remove_chunk(trans, root, chunk_offset);
ret = btrfs_remove_chunk(trans, fs_info, chunk_offset);
btrfs_end_transaction(trans, extent_root);
return ret;
}
@ -3003,7 +2999,7 @@ again:
btrfs_release_path(path);
if (chunk_type & BTRFS_BLOCK_GROUP_SYSTEM) {
ret = btrfs_relocate_chunk(chunk_root,
ret = btrfs_relocate_chunk(root->fs_info,
found_key.offset);
if (ret == -ENOSPC)
failed++;
@ -3669,8 +3665,7 @@ again:
chunk_reserved = 1;
}
ret = btrfs_relocate_chunk(chunk_root,
found_key.offset);
ret = btrfs_relocate_chunk(fs_info, found_key.offset);
mutex_unlock(&fs_info->delete_unused_bgs_mutex);
if (ret && ret != -ENOSPC)
goto error;
@ -4439,7 +4434,7 @@ again:
chunk_offset = btrfs_dev_extent_chunk_offset(l, dev_extent);
btrfs_release_path(path);
ret = btrfs_relocate_chunk(root, chunk_offset);
ret = btrfs_relocate_chunk(root->fs_info, chunk_offset);
mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
if (ret && ret != -ENOSPC)
goto done;
@ -6785,8 +6780,9 @@ out_short_read:
return -EIO;
}
int btrfs_read_chunk_tree(struct btrfs_root *root)
int btrfs_read_chunk_tree(struct btrfs_fs_info *fs_info)
{
struct btrfs_root *root = fs_info->chunk_root;
struct btrfs_path *path;
struct extent_buffer *leaf;
struct btrfs_key key;
@ -6795,8 +6791,6 @@ int btrfs_read_chunk_tree(struct btrfs_root *root)
int slot;
u64 total_dev = 0;
root = root->fs_info->chunk_root;
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;

4
fs/btrfs/volumes.h
View File

@ -407,7 +407,7 @@ 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_chunk_tree(struct btrfs_root *root);
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);
void btrfs_mapping_init(struct btrfs_mapping_tree *tree);
@ -483,7 +483,7 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,
struct btrfs_root *extent_root,
u64 chunk_offset, u64 chunk_size);
int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 chunk_offset);
struct btrfs_fs_info *fs_info, u64 chunk_offset);
static inline int btrfs_dev_stats_dirty(struct btrfs_device *dev)
{