On Wed 26-01-22 16:50:34, Christoph Hellwig wrote: > There is no need to reinitialize idle_worker_list, worker_tree and timer > every time a loop device is configured. Just initialize them once at > allocation time. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> Looks good. Feel free to add: Reviewed-by: Jan Kara <jack@xxxxxxx> Honza > --- > drivers/block/loop.c | 7 +++---- > 1 file changed, 3 insertions(+), 4 deletions(-) > > diff --git a/drivers/block/loop.c b/drivers/block/loop.c > index b268bca6e4fb7..6ec55a5d9dfc4 100644 > --- a/drivers/block/loop.c > +++ b/drivers/block/loop.c > @@ -1052,10 +1052,6 @@ static int loop_configure(struct loop_device *lo, fmode_t mode, > > INIT_WORK(&lo->rootcg_work, loop_rootcg_workfn); > INIT_LIST_HEAD(&lo->rootcg_cmd_list); > - INIT_LIST_HEAD(&lo->idle_worker_list); > - lo->worker_tree = RB_ROOT; > - timer_setup(&lo->timer, loop_free_idle_workers_timer, > - TIMER_DEFERRABLE); > lo->use_dio = lo->lo_flags & LO_FLAGS_DIRECT_IO; > lo->lo_device = bdev; > lo->lo_backing_file = file; > @@ -1957,6 +1953,9 @@ static int loop_add(int i) > lo = kzalloc(sizeof(*lo), GFP_KERNEL); > if (!lo) > goto out; > + lo->worker_tree = RB_ROOT; > + INIT_LIST_HEAD(&lo->idle_worker_list); > + timer_setup(&lo->timer, loop_free_idle_workers_timer, TIMER_DEFERRABLE); > lo->lo_state = Lo_unbound; > > err = mutex_lock_killable(&loop_ctl_mutex); > -- > 2.30.2 > -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR
