1 files changed, 4 insertions, 2 deletions

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 0d6d8b573652..5e6d35804d73 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -35,6 +35,7 @@
 #include <linux/delay.h>
 #include <linux/kthread.h>
 #include <linux/freezer.h>
+#include <linux/smp_lock.h>
 #include "cifsfs.h"
 #include "cifspdu.h"
 #define DECLARE_GLOBALS_HERE
@@ -530,6 +531,7 @@ static void cifs_umount_begin(struct super_block *sb)
         if (tcon == NULL)
                 return;
 
+        lock_kernel();
         read_lock(&cifs_tcp_ses_lock);
         if (tcon->tc_count == 1)
                 tcon->tidStatus = CifsExiting;
@@ -548,6 +550,7 @@ static void cifs_umount_begin(struct super_block *sb)
         }
 /* BB FIXME - finish add checks for tidStatus BB */
 
+        unlock_kernel();
         return;
 }
 
@@ -599,8 +602,7 @@ cifs_get_sb(struct file_system_type *fs_type,
 
         rc = cifs_read_super(sb, data, dev_name, flags & MS_SILENT ? 1 : 0);
         if (rc) {
-                up_write(&sb->s_umount);
-                deactivate_super(sb);
+                deactivate_locked_super(sb);
                 return rc;
         }
         sb->s_flags |= MS_ACTIVE;