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btrfs: introduce btrfs_is_data_reloc_root

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There are several places in our codebase where we check if a root is the
root of the data reloc tree and subsequent patches will introduce more.

Factor out the check into a small helper function instead of open coding
it multiple times.

Reviewed-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Johannes Thumshirn 2021-09-09 01:19:25 +09:00 • committed by David Sterba
parent 38d5e541dd
commit 37f00a6d2e
5 changed files with 16 additions and 15 deletions
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2
fs/btrfs/disk-io.c
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@ -1500,7 +1500,7 @@ static int btrfs_init_fs_root(struct btrfs_root *root, dev_t anon_dev)
goto fail;
if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID &&
root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID) {
!btrfs_is_data_reloc_root(root)) {
set_bit(BTRFS_ROOT_SHAREABLE, &root->state);
btrfs_check_and_init_root_item(&root->root_item);
}