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btrfs: get fs_info from block group in lookup_free_space_inode 

We can read fs_info from the block group cache structure and can drop it
from the parameters.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2019-03-20 13:40:19 +01:00
parent fdf08605b9
commit 7949f3392e
4 changed files with 12 additions and 11 deletions
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4
fs/btrfs/extent-tree.c
View File

@ -3312,7 +3312,7 @@ static int cache_save_setup(struct btrfs_block_group_cache *block_group,
if (trans->aborted)
return 0;
again:
inode = lookup_free_space_inode(fs_info, block_group, path);
inode = lookup_free_space_inode(block_group, path);
if (IS_ERR(inode) && PTR_ERR(inode) != -ENOENT) {
ret = PTR_ERR(inode);
btrfs_release_path(path);
@ -10699,7 +10699,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
* get the inode first so any iput calls done for the io_list
* aren't the final iput (no unlinks allowed now)
*/
inode = lookup_free_space_inode(fs_info, block_group, path);
inode = lookup_free_space_inode(block_group, path);
mutex_lock(&trans->transaction->cache_write_mutex);
/*

11
fs/btrfs/free-space-cache.c
View File

@ -88,10 +88,11 @@ static struct inode *__lookup_free_space_inode(struct btrfs_root *root,
return inode;
}
struct inode *lookup_free_space_inode(struct btrfs_fs_info *fs_info,
struct btrfs_block_group_cache
*block_group, struct btrfs_path *path)
struct inode *lookup_free_space_inode(
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path)
{
struct btrfs_fs_info *fs_info = block_group->fs_info;
struct inode *inode = NULL;
u32 flags = BTRFS_INODE_NODATASUM | BTRFS_INODE_NODATACOW;
@ -857,7 +858,7 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info,
* once created get their ->cached field set to BTRFS_CACHE_FINISHED so
* we will never try to read their inode item while the fs is mounted.
*/
inode = lookup_free_space_inode(fs_info, block_group, path);
inode = lookup_free_space_inode(block_group, path);
if (IS_ERR(inode)) {
btrfs_free_path(path);
return 0;
@ -1385,7 +1386,7 @@ int btrfs_write_out_cache(struct btrfs_trans_handle *trans,
}
spin_unlock(&block_group->lock);
inode = lookup_free_space_inode(fs_info, block_group, path);
inode = lookup_free_space_inode(block_group, path);
if (IS_ERR(inode))
return 0;

6
fs/btrfs/free-space-cache.h
View File

@ -38,9 +38,9 @@ struct btrfs_free_space_op {
struct btrfs_io_ctl;
struct inode *lookup_free_space_inode(struct btrfs_fs_info *fs_info,
struct btrfs_block_group_cache
*block_group, struct btrfs_path *path);
struct inode *lookup_free_space_inode(
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path);
int create_free_space_inode(struct btrfs_trans_handle *trans,
struct btrfs_block_group_cache *block_group,
struct btrfs_path *path);

2
fs/btrfs/relocation.c
View File

@ -4299,7 +4299,7 @@ int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start)
goto out;
}
inode = lookup_free_space_inode(fs_info, rc->block_group, path);
inode = lookup_free_space_inode(rc->block_group, path);
btrfs_free_path(path);
if (!IS_ERR(inode))