btrfs_clean_one_deleted_snapshot() will grab needed root from fs_info, thus no need to pass a @root parameter.
Also refactor its sole caller, cleaner_kthread() to use fs_info other than root. Signed-off-by: Qu Wenruo <[email protected]> --- fs/btrfs/disk-io.c | 7 +++---- fs/btrfs/transaction.c | 4 ++-- fs/btrfs/transaction.h | 2 +- 3 files changed, 6 insertions(+), 7 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index deb74a8c191a..9c11ac5edef5 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1689,8 +1689,7 @@ static void end_workqueue_fn(struct btrfs_work *work) static int cleaner_kthread(void *arg) { - struct btrfs_root *root = arg; - struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_fs_info *fs_info = arg; int again; while (1) { @@ -1723,7 +1722,7 @@ static int cleaner_kthread(void *arg) btrfs_run_delayed_iputs(fs_info); - again = btrfs_clean_one_deleted_snapshot(root); + again = btrfs_clean_one_deleted_snapshot(fs_info); mutex_unlock(&fs_info->cleaner_mutex); /* @@ -3124,7 +3123,7 @@ int open_ctree(struct super_block *sb, goto fail_sysfs; } - fs_info->cleaner_kthread = kthread_run(cleaner_kthread, tree_root, + fs_info->cleaner_kthread = kthread_run(cleaner_kthread, fs_info, "btrfs-cleaner"); if (IS_ERR(fs_info->cleaner_kthread)) goto fail_sysfs; diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 3f6811cdf803..48d3b5123129 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -2296,10 +2296,10 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans) * because btrfs_commit_super will poke cleaner thread and it will process it a * few seconds later. */ -int btrfs_clean_one_deleted_snapshot(struct btrfs_root *root) +int btrfs_clean_one_deleted_snapshot(struct btrfs_fs_info *fs_info) { + struct btrfs_root *root; int ret; - struct btrfs_fs_info *fs_info = root->fs_info; spin_lock(&fs_info->trans_lock); if (list_empty(&fs_info->dead_roots)) { diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h index 78c446c222b7..e72e6cf919e2 100644 --- a/fs/btrfs/transaction.h +++ b/fs/btrfs/transaction.h @@ -190,7 +190,7 @@ int btrfs_wait_for_commit(struct btrfs_fs_info *fs_info, u64 transid); void btrfs_add_dead_root(struct btrfs_root *root); int btrfs_defrag_root(struct btrfs_root *root); -int btrfs_clean_one_deleted_snapshot(struct btrfs_root *root); +int btrfs_clean_one_deleted_snapshot(struct btrfs_fs_info *fs_info); int btrfs_commit_transaction(struct btrfs_trans_handle *trans); int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans, int wait_for_unblock); -- 2.22.0
