linux-kernel - [PATCH 3.2 141/164] debugfs: Fix statfs() regression in 3.2.69

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Date:	Sun, 02 Aug 2015 01:02:38 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org,
	"Luis Henriques" <luis.henriques@...onical.com>
Subject: [PATCH 3.2 141/164] debugfs: Fix statfs() regression in 3.2.69

3.2.70-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Ben Hutchings <ben@...adent.org.uk>

Commit 915f4f86ddc4 ("debugfs: leave freeing a symlink body until inode
eviction", commit 0db59e59299f upstream) changed debugfs to define its
own super_operations and implement the evict_inode operation.

Luis Henriques pointed out that it needs to define the statfs
operation, as in simple_super_operations which it was using before.

Reported-by: Luis Henriques <luis.henriques@...onical.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -135,6 +135,7 @@ static void debugfs_evict_inode(struct i
 
 static const struct super_operations debugfs_super_operations = {
 	.evict_inode	= debugfs_evict_inode,
+	.statfs		= simple_statfs,
 };
 
 static int debug_fill_super(struct super_block *sb, void *data, int silent)

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