[PATCH] v9fs: Support to force umount

Support for force umount

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index ce0778acc90a..868f350b2c5f 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -257,10 +257,19 @@ static int v9fs_show_options(struct seq_file *m, struct vfsmount *mnt)
         return 0;
 }
 
+static void
+v9fs_umount_begin(struct super_block *sb)
+{
+        struct v9fs_session_info *v9ses = sb->s_fs_info;
+
+        v9fs_session_cancel(v9ses);
+}
+
 static struct super_operations v9fs_super_ops = {
         .statfs = simple_statfs,
         .clear_inode = v9fs_clear_inode,
         .show_options = v9fs_show_options,
+        .umount_begin = v9fs_umount_begin,
 };
 
 struct file_system_type v9fs_fs_type = {