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fsnotify: clean up spinlock assertions

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Use assert_spin_locked() macro instead of hand-made BUG_ON statements.

Link: http://lkml.kernel.org/r/1474537439-18919-1-git-send-email-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Suggested-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara
2016-10-07 16:57:01 -07:00
committed by Linus Torvalds
parent 0b1b86527d
commit ed2726406c
2 changed files with 4 additions and 8 deletions
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9
fs/notify/notification.c
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@@ -63,8 +63,7 @@ EXPORT_SYMBOL_GPL(fsnotify_get_cookie);
/* return true if the notify queue is empty, false otherwise */
bool fsnotify_notify_queue_is_empty(struct fsnotify_group *group)
{
BUG_ON(IS_ENABLED(CONFIG_SMP) &&
!spin_is_locked(&group->notification_lock));
assert_spin_locked(&group->notification_lock);
return list_empty(&group->notification_list) ? true : false;
}
@@ -149,8 +148,7 @@ struct fsnotify_event *fsnotify_remove_first_event(struct fsnotify_group *group)
{
struct fsnotify_event *event;
BUG_ON(IS_ENABLED(CONFIG_SMP) &&
!spin_is_locked(&group->notification_lock));
assert_spin_locked(&group->notification_lock);
pr_debug("%s: group=%p\n", __func__, group);
@@ -172,8 +170,7 @@ struct fsnotify_event *fsnotify_remove_first_event(struct fsnotify_group *group)
*/
struct fsnotify_event *fsnotify_peek_first_event(struct fsnotify_group *group)
{
BUG_ON(IS_ENABLED(CONFIG_SMP) &&
!spin_is_locked(&group->notification_lock));
assert_spin_locked(&group->notification_lock);
return list_first_entry(&group->notification_list,
struct fsnotify_event, list);