hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

btrfs: reduce indentation in btrfs_may_alloc_data_chunk 

In btrfs_may_alloc_data_chunk() we're checking if the chunk type is of
type BTRFS_BLOCK_GROUP_DATA and if it is we process it.

Instead of checking if the chunk type is a BTRFS_BLOCK_GROUP_DATA chunk
we can negate the check and bail out early if it isn't.

This makes the code a bit more readable.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Johannes Thumshirn 2019-10-18 11:58:22 +02:00 committed by David Sterba
parent 721860d578
commit 5ae2169290
1 changed files with 18 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
fs/btrfs/volumes.c
View File

@ -2982,27 +2982,28 @@ static int btrfs_may_alloc_data_chunk(struct btrfs_fs_info *fs_info,
chunk_type = cache->flags;
btrfs_put_block_group(cache);
if (chunk_type & BTRFS_BLOCK_GROUP_DATA) {
spin_lock(&fs_info->data_sinfo->lock);
bytes_used = fs_info->data_sinfo->bytes_used;
spin_unlock(&fs_info->data_sinfo->lock);
if (!(chunk_type & BTRFS_BLOCK_GROUP_DATA))
return 0;
if (!bytes_used) {
struct btrfs_trans_handle *trans;
int ret;
spin_lock(&fs_info->data_sinfo->lock);
bytes_used = fs_info->data_sinfo->bytes_used;
spin_unlock(&fs_info->data_sinfo->lock);
trans = btrfs_join_transaction(fs_info->tree_root);
if (IS_ERR(trans))
return PTR_ERR(trans);
if (!bytes_used) {
struct btrfs_trans_handle *trans;
int ret;
ret = btrfs_force_chunk_alloc(trans,
BTRFS_BLOCK_GROUP_DATA);
btrfs_end_transaction(trans);
if (ret < 0)
return ret;
return 1;
}
trans = btrfs_join_transaction(fs_info->tree_root);
if (IS_ERR(trans))
return PTR_ERR(trans);
ret = btrfs_force_chunk_alloc(trans, BTRFS_BLOCK_GROUP_DATA);
btrfs_end_transaction(trans);
if (ret < 0)
return ret;
return 1;
}
return 0;
}