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btrfs: move fs root init stuff into btrfs_init_fs_root 

We have a helper for reading fs roots that just reads the fs root off
the disk and then sets REF_COWS and init's the inheritable flags.  Move
this into btrfs_init_fs_root so we can later get rid of this helper and
consolidate all of the fs root reading into one helper.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
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 2020-01-24 09:32:19 -05:00 committed by David Sterba
parent 96dfcb46ff
commit f39e457156
1 changed files with 5 additions and 6 deletions
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11
fs/btrfs/disk-io.c
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@ -1445,12 +1445,6 @@ struct btrfs_root *btrfs_read_fs_root(struct btrfs_root *tree_root,
root = btrfs_read_tree_root(tree_root, location);
if (IS_ERR(root))
return root;
if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID) {
set_bit(BTRFS_ROOT_REF_COWS, &root->state);
btrfs_check_and_init_root_item(&root->root_item);
}
return root;
}
@ -1474,6 +1468,11 @@ int btrfs_init_fs_root(struct btrfs_root *root)
}
root->subv_writers = writers;
if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID) {
set_bit(BTRFS_ROOT_REF_COWS, &root->state);
btrfs_check_and_init_root_item(&root->root_item);
}
btrfs_init_free_ino_ctl(root);
spin_lock_init(&root->ino_cache_lock);
init_waitqueue_head(&root->ino_cache_wait);