linux-kernel - [PATCH 3.16 275/357] fs/notify: dont show f_handle if exportfs_encode_inode

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Message-Id: <20141003212941.756856200@linuxfoundation.org>
Date:	Fri,  3 Oct 2014 14:31:01 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Andrey Vagin <avagin@...nvz.org>,
	Cyrill Gorcunov <gorcunov@...nvz.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH 3.16 275/357] fs/notify: dont show f_handle if exportfs_encode_inode_fh failed

3.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Andrey Vagin <avagin@...nvz.org>

commit 7e8824816bda16bb11ff5ff1e1212d642e57b0b3 upstream.

Currently we handle only ENOSPC.  In case of other errors the file_handle
variable isn't filled properly and we will show a part of stack.

Signed-off-by: Andrey Vagin <avagin@...nvz.org>
Acked-by: Cyrill Gorcunov <gorcunov@...nvz.org>
Cc: Alexander Viro <viro@...iv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/notify/fdinfo.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/notify/fdinfo.c
+++ b/fs/notify/fdinfo.c
@@ -50,7 +50,7 @@ static int show_mark_fhandle(struct seq_
 	size = f.handle.handle_bytes >> 2;
 
 	ret = exportfs_encode_inode_fh(inode, (struct fid *)f.handle.f_handle, &size, 0);
-	if ((ret == FILEID_INVALID) || (ret == -ENOSPC)) {
+	if ((ret == FILEID_INVALID) || (ret < 0)) {
 		WARN_ONCE(1, "Can't encode file handler for inotify: %d\n", ret);
 		return 0;
 	}


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