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authorJan Kara <jack@suse.cz>2016-10-08 01:57:01 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2016-10-08 03:46:26 +0200
commited2726406c6a71f5da63719c0ba7d9e21dd9581c (patch)
tree8443da5c76097a56a635a4a5c834998498a99c01 /fs/notify
parentfanotify: fix possible false warning when freeing events (diff)
downloadlinux-ed2726406c6a71f5da63719c0ba7d9e21dd9581c.tar.xz
linux-ed2726406c6a71f5da63719c0ba7d9e21dd9581c.zip
fsnotify: clean up spinlock assertions
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>
Diffstat (limited to 'fs/notify')
-rw-r--r--fs/notify/fanotify/fanotify_user.c3
-rw-r--r--fs/notify/notification.c9
2 files changed, 4 insertions, 8 deletions
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 189fab3ac4e6..7ebfca6a1427 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -54,8 +54,7 @@ struct kmem_cache *fanotify_perm_event_cachep __read_mostly;
static struct fsnotify_event *get_one_event(struct fsnotify_group *group,
size_t count)
{
- BUG_ON(IS_ENABLED(CONFIG_SMP) &&
- !spin_is_locked(&group->notification_lock));
+ assert_spin_locked(&group->notification_lock);
pr_debug("%s: group=%p count=%zd\n", __func__, group, count);
diff --git a/fs/notify/notification.c b/fs/notify/notification.c
index 1a8010e7a2a0..66f85c651c52 100644
--- a/fs/notify/notification.c
+++ b/fs/notify/notification.c
@@ -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);