From e6f90e51714db62a6405dfbadfb47043be656a85 Mon Sep 17 00:00:00 2001
From: Evgeniy Polyakov <zbr@ioremap.net>
Date: Fri, 27 Mar 2009 15:04:24 +0300
Subject: [PATCH] --- yaml --- r: 143657 b: refs/heads/master c:
 cee9bb2ebdc1697f9be7ee5bdd6867daaa712179 h: refs/heads/master i:   143655:
 c3f5ca98e280133628e76a2e281cbad1b09ea881 v: v3

---
 [refs]                                 |  2 +-
 trunk/drivers/staging/pohmelfs/inode.c | 20 +++++++++++++++++++-
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index 9eb1584b3d2e..7b7a3b3a3c87 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e504342448375ffd73dec2b540a5aaf5da6f8439
+refs/heads/master: cee9bb2ebdc1697f9be7ee5bdd6867daaa712179
diff --git a/trunk/drivers/staging/pohmelfs/inode.c b/trunk/drivers/staging/pohmelfs/inode.c
index 3fef09fd712c..af99f6620b7e 100644
--- a/trunk/drivers/staging/pohmelfs/inode.c
+++ b/trunk/drivers/staging/pohmelfs/inode.c
@@ -1908,11 +1908,29 @@ static int pohmelfs_get_sb(struct file_system_type *fs_type,
 				mnt);
 }
 
+/*
+ * We need this to sync all inodes earlier, since when writeback
+ * is invoked from the umount/mntput path dcache is already shrunk,
+ * see generic_shutdown_super(), and no inodes can access the path.
+ */
+static void pohmelfs_kill_super(struct super_block *sb)
+{
+	struct writeback_control wbc = {
+		.sync_mode	= WB_SYNC_ALL,
+		.range_start	= 0,
+		.range_end	= LLONG_MAX,
+		.nr_to_write	= LONG_MAX,
+	};
+	generic_sync_sb_inodes(sb, &wbc);
+
+	kill_anon_super(sb);
+}
+
 static struct file_system_type pohmel_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "pohmel",
 	.get_sb		= pohmelfs_get_sb,
-	.kill_sb 	= kill_anon_super,
+	.kill_sb 	= pohmelfs_kill_super,
 };
 
 /*