From 25c829afbd74fb9594d2351d9e41be05bacb9903 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Fri, 9 Dec 2016 09:38:55 +0100
Subject: [PATCH] inotify: Remove inode pointers from debug messages

Printing inode pointers in warnings has dubious value and with future
changes we won't be able to easily get them without either locking or
chances we oops along the way. So just remove inode pointers from the
warning messages.

Reviewed-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/notify/inotify/inotify_fsnotify.c |  4 ++--
 fs/notify/inotify/inotify_user.c     | 25 ++++++++++---------------
 2 files changed, 12 insertions(+), 17 deletions(-)

diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index 1aeb837ae414..f310d8368a2d 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -156,8 +156,8 @@ static int idr_callback(int id, void *p, void *data)
 	 * BUG() that was here.
 	 */
 	if (fsn_mark)
-		printk(KERN_WARNING "fsn_mark->group=%p inode=%p wd=%d\n",
-			fsn_mark->group, fsn_mark->inode, i_mark->wd);
+		printk(KERN_WARNING "fsn_mark->group=%p wd=%d\n",
+			fsn_mark->group, i_mark->wd);
 	return 0;
 }
 
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 498d609b26c7..b82a507a5367 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -429,18 +429,16 @@ static void inotify_remove_from_idr(struct fsnotify_group *group,
 	 * if it wasn't....
 	 */
 	if (wd == -1) {
-		WARN_ONCE(1, "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p"
-			" i_mark->inode=%p\n", __func__, i_mark, i_mark->wd,
-			i_mark->fsn_mark.group, i_mark->fsn_mark.inode);
+		WARN_ONCE(1, "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p\n",
+			__func__, i_mark, i_mark->wd, i_mark->fsn_mark.group);
 		goto out;
 	}
 
 	/* Lets look in the idr to see if we find it */
 	found_i_mark = inotify_idr_find_locked(group, wd);
 	if (unlikely(!found_i_mark)) {
-		WARN_ONCE(1, "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p"
-			" i_mark->inode=%p\n", __func__, i_mark, i_mark->wd,
-			i_mark->fsn_mark.group, i_mark->fsn_mark.inode);
+		WARN_ONCE(1, "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p\n",
+			__func__, i_mark, i_mark->wd, i_mark->fsn_mark.group);
 		goto out;
 	}
 
@@ -451,12 +449,10 @@ static void inotify_remove_from_idr(struct fsnotify_group *group,
 	 */
 	if (unlikely(found_i_mark != i_mark)) {
 		WARN_ONCE(1, "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p "
-			"mark->inode=%p found_i_mark=%p found_i_mark->wd=%d "
-			"found_i_mark->group=%p found_i_mark->inode=%p\n",
-			__func__, i_mark, i_mark->wd, i_mark->fsn_mark.group,
-			i_mark->fsn_mark.inode, found_i_mark, found_i_mark->wd,
-			found_i_mark->fsn_mark.group,
-			found_i_mark->fsn_mark.inode);
+			"found_i_mark=%p found_i_mark->wd=%d "
+			"found_i_mark->group=%p\n", __func__, i_mark,
+			i_mark->wd, i_mark->fsn_mark.group, found_i_mark,
+			found_i_mark->wd, found_i_mark->fsn_mark.group);
 		goto out;
 	}
 
@@ -466,9 +462,8 @@ static void inotify_remove_from_idr(struct fsnotify_group *group,
 	 * one ref grabbed by inotify_idr_find
 	 */
 	if (unlikely(atomic_read(&i_mark->fsn_mark.refcnt) < 3)) {
-		printk(KERN_ERR "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p"
-			" i_mark->inode=%p\n", __func__, i_mark, i_mark->wd,
-			i_mark->fsn_mark.group, i_mark->fsn_mark.inode);
+		printk(KERN_ERR "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p\n",
+			 __func__, i_mark, i_mark->wd, i_mark->fsn_mark.group);
 		/* we can't really recover with bad ref cnting.. */
 		BUG();
 	}
-- 
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