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btrfs: export block group accounting helpers 

Want to move these functions into block-group.c, so export them.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2019-06-20 15:38:01 -04:00 committed by David Sterba
parent 77745c0511
commit ade4b5169f
2 changed files with 16 additions and 11 deletions
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6
fs/btrfs/block-group.h
View File

@ -192,6 +192,12 @@ void btrfs_dec_block_group_ro(struct btrfs_block_group_cache *cache);
int btrfs_start_dirty_block_groups(struct btrfs_trans_handle *trans);
int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans);
int btrfs_setup_space_cache(struct btrfs_trans_handle *trans);
int btrfs_update_block_group(struct btrfs_trans_handle *trans,
u64 bytenr, u64 num_bytes, int alloc);
int btrfs_add_reserved_bytes(struct btrfs_block_group_cache *cache,
u64 ram_bytes, u64 num_bytes, int delalloc);
void btrfs_free_reserved_bytes(struct btrfs_block_group_cache *cache,
u64 num_bytes, int delalloc);
static inline int btrfs_block_group_cache_done(
struct btrfs_block_group_cache *cache)

21
fs/btrfs/extent-tree.c
View File

@ -2898,8 +2898,8 @@ out:
return ret;
}
static int update_block_group(struct btrfs_trans_handle *trans,
u64 bytenr, u64 num_bytes, int alloc)
int btrfs_update_block_group(struct btrfs_trans_handle *trans,
u64 bytenr, u64 num_bytes, int alloc)
{
struct btrfs_fs_info *info = trans->fs_info;
struct btrfs_block_group_cache *cache = NULL;
@ -3199,8 +3199,8 @@ btrfs_inc_block_group_reservations(struct btrfs_block_group_cache *bg)
* reservation and the block group has become read only we cannot make the
* reservation and return -EAGAIN, otherwise this function always succeeds.
*/
static int btrfs_add_reserved_bytes(struct btrfs_block_group_cache *cache,
u64 ram_bytes, u64 num_bytes, int delalloc)
int btrfs_add_reserved_bytes(struct btrfs_block_group_cache *cache,
u64 ram_bytes, u64 num_bytes, int delalloc)
{
struct btrfs_space_info *space_info = cache->space_info;
int ret = 0;
@ -3233,9 +3233,8 @@ static int btrfs_add_reserved_bytes(struct btrfs_block_group_cache *cache,
* A and before transaction A commits you free that leaf, you call this with
* reserve set to 0 in order to clear the reservation.
*/
static void btrfs_free_reserved_bytes(struct btrfs_block_group_cache *cache,
u64 num_bytes, int delalloc)
void btrfs_free_reserved_bytes(struct btrfs_block_group_cache *cache,
u64 num_bytes, int delalloc)
{
struct btrfs_space_info *space_info = cache->space_info;
@ -3705,7 +3704,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
goto out;
}
ret = update_block_group(trans, bytenr, num_bytes, 0);
ret = btrfs_update_block_group(trans, bytenr, num_bytes, 0);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto out;
@ -4770,7 +4769,7 @@ static int alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
if (ret)
return ret;
ret = update_block_group(trans, ins->objectid, ins->offset, 1);
ret = btrfs_update_block_group(trans, ins->objectid, ins->offset, 1);
if (ret) { /* -ENOENT, logic error */
btrfs_err(fs_info, "update block group failed for %llu %llu",
ins->objectid, ins->offset);
@ -4860,8 +4859,8 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
if (ret)
return ret;
ret = update_block_group(trans, extent_key.objectid,
fs_info->nodesize, 1);
ret = btrfs_update_block_group(trans, extent_key.objectid,
fs_info->nodesize, 1);
if (ret) { /* -ENOENT, logic error */
btrfs_err(fs_info, "update block group failed for %llu %llu",
extent_key.objectid, extent_key.offset);