Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 15f3ec3f authored by Lai Jiangshan's avatar Lai Jiangshan Committed by Linus Torvalds
Browse files

idr: reduce the unneeded check in free_layer() 



If "idr->hint == p" is true, it also implies "idr->hint" is true(not NULL).

Signed-off-by: default avatarLai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent aefb7682

lib/idr.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -145,7 +145,7 @@ static void idr_layer_rcu_free(struct rcu_head *head) 




static inline void free_layer(struct idr *idr, struct idr_layer *p)

static inline void free_layer(struct idr *idr, struct idr_layer *p)

{

{

	if (idr->hint && idr->hint == p)

	if (idr->hint == p)

		RCU_INIT_POINTER(idr->hint, NULL);

		RCU_INIT_POINTER(idr->hint, NULL);

	call_rcu(&p->rcu_head, idr_layer_rcu_free);

	call_rcu(&p->rcu_head, idr_layer_rcu_free);

}

}