1 files changed, 16 insertions, 0 deletions

diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index b66832ac33ac..b38f96bef829 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -179,6 +179,8 @@ static void jfs_put_super(struct super_block *sb)
 
         jfs_info("In jfs_put_super");
 
+        dquot_disable(sb, -1, DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED);
+
         lock_kernel();
 
         rc = jfs_umount(sb);
@@ -396,10 +398,20 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
 
                 JFS_SBI(sb)->flag = flag;
                 ret = jfs_mount_rw(sb, 1);
+
+                /* mark the fs r/w for quota activity */
+                sb->s_flags &= ~MS_RDONLY;
+
                 unlock_kernel();
+                dquot_resume(sb, -1);
                 return ret;
         }
         if ((!(sb->s_flags & MS_RDONLY)) && (*flags & MS_RDONLY)) {
+                rc = dquot_suspend(sb, -1);
+                if (rc < 0) {
+                        unlock_kernel();
+                        return rc;
+                }
                 rc = jfs_umount_rw(sb);
                 JFS_SBI(sb)->flag = flag;
                 unlock_kernel();
@@ -469,6 +481,10 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
          */
         sb->s_op = &jfs_super_operations;
         sb->s_export_op = &jfs_export_operations;
+#ifdef CONFIG_QUOTA
+        sb->dq_op = &dquot_operations;
+        sb->s_qcop = &dquot_quotactl_ops;
+#endif
 
         /*
          * Initialize direct-mapping inode/address-space