inotify: do not spam console without limit

inotify was supposed to have a dmesg printk ratelimitor which would cause
inotify to only emit one message per boot.  The static bool was never set
so it kept firing messages.  This patch correctly limits warnings in multiple
places.

Signed-off-by: Eric Paris <eparis@redhat.com>

fs/notify/inotify/inotify_user.c

@@ -449,20 +449,18 @@ static void inotify_remove_from_idr(struct fsnotify_group *group,
 	 * if it wasn't....
 	 */
 	if (wd == -1) {
-		printk(KERN_WARNING "%s: ientry=%p ientry->wd=%d ientry->group=%p"
+		WARN_ONCE(1, "%s: ientry=%p ientry->wd=%d ientry->group=%p"
 			" ientry->inode=%p\n", __func__, ientry, ientry->wd,
 			ientry->fsn_entry.group, ientry->fsn_entry.inode);
-		WARN_ON(1);
 		goto out;
 	}
 
 	/* Lets look in the idr to see if we find it */
 	found_ientry = inotify_idr_find_locked(group, wd);
 	if (unlikely(!found_ientry)) {
-		printk(KERN_WARNING "%s: ientry=%p ientry->wd=%d ientry->group=%p"
+		WARN_ONCE(1, "%s: ientry=%p ientry->wd=%d ientry->group=%p"
 			" ientry->inode=%p\n", __func__, ientry, ientry->wd,
 			ientry->fsn_entry.group, ientry->fsn_entry.inode);
-		WARN_ON(1);
 		goto out;
 	}
 
@@ -472,8 +470,7 @@ static void inotify_remove_from_idr(struct fsnotify_group *group,
 	 * fucked up somewhere.
 	 */
 	if (unlikely(found_ientry != ientry)) {
-		WARN_ON(1);
-		printk(KERN_WARNING "%s: ientry=%p ientry->wd=%d ientry->group=%p "
+		WARN_ONCE(1, "%s: ientry=%p ientry->wd=%d ientry->group=%p "
 			"entry->inode=%p found_ientry=%p found_ientry->wd=%d "
 			"found_ientry->group=%p found_ientry->inode=%p\n",
 			__func__, ientry, ientry->wd, ientry->fsn_entry.group,
@@ -489,7 +486,7 @@ static void inotify_remove_from_idr(struct fsnotify_group *group,
 	 * one ref grabbed by inotify_idr_find
 	 */
 	if (unlikely(atomic_read(&ientry->fsn_entry.refcnt) < 3)) {
-		printk(KERN_WARNING "%s: ientry=%p ientry->wd=%d ientry->group=%p"
+		printk(KERN_ERR "%s: ientry=%p ientry->wd=%d ientry->group=%p"
 			" ientry->inode=%p\n", __func__, ientry, ientry->wd,
 			ientry->fsn_entry.group, ientry->fsn_entry.inode);
 		/* we can't really recover with bad ref cnting.. */