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btrfs: move all btree inode initialization into btrfs_init_btree_inode

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Move the remaining code that deals with initializing the btree
inode into btrfs_init_btree_inode instead of splitting it between
that helpers and its only caller.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Christoph Hellwig 2023-02-19 19:10:22 +01:00 committed by David Sterba
parent 19337f8ea3
commit dcb2137c84
1 changed files with 14 additions and 7 deletions
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21
fs/btrfs/disk-io.c
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@ -2125,11 +2125,16 @@ static void btrfs_init_balance(struct btrfs_fs_info *fs_info)
atomic_set(&fs_info->reloc_cancel_req, 0);
}
static void btrfs_init_btree_inode(struct btrfs_fs_info *fs_info)
static int btrfs_init_btree_inode(struct super_block *sb)
{
struct inode *inode = fs_info->btree_inode;
struct btrfs_fs_info *fs_info = btrfs_sb(sb);
unsigned long hash = btrfs_inode_hash(BTRFS_BTREE_INODE_OBJECTID,
fs_info->tree_root);
struct inode *inode;
inode = new_inode(sb);
if (!inode)
return -ENOMEM;
inode->i_ino = BTRFS_BTREE_INODE_OBJECTID;
set_nlink(inode, 1);
@ -2140,6 +2145,7 @@ static void btrfs_init_btree_inode(struct btrfs_fs_info *fs_info)
*/
inode->i_size = OFFSET_MAX;
inode->i_mapping->a_ops = &btree_aops;
mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
RB_CLEAR_NODE(&BTRFS_I(inode)->rb_node);
extent_io_tree_init(fs_info, &BTRFS_I(inode)->io_tree,
@ -2152,6 +2158,9 @@ static void btrfs_init_btree_inode(struct btrfs_fs_info *fs_info)
BTRFS_I(inode)->location.offset = 0;
set_bit(BTRFS_INODE_DUMMY, &BTRFS_I(inode)->runtime_flags);
__insert_inode_hash(inode, hash);
fs_info->btree_inode = inode;
return 0;
}
static void btrfs_init_dev_replace_locks(struct btrfs_fs_info *fs_info)
@ -3365,13 +3374,11 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
goto fail;
}
fs_info->btree_inode = new_inode(sb);
if (!fs_info->btree_inode) {
err = -ENOMEM;
ret = btrfs_init_btree_inode(sb);
if (ret) {
err = ret;
goto fail;
}
mapping_set_gfp_mask(fs_info->btree_inode->i_mapping, GFP_NOFS);
btrfs_init_btree_inode(fs_info);
invalidate_bdev(fs_devices->latest_dev->bdev);