vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 1e9edbdeda7e..a9198dfd5f85 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -560,7 +560,7 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
                         break;
                 case 2: set_bit(Enabled, &e->flags);
                         break;
-                case 3: root = dget(file->f_path.mnt->mnt_sb->s_root);
+                case 3: root = dget(file->f_path.dentry->d_sb->s_root);
                         mutex_lock(&root->d_inode->i_mutex);
 
                         kill_node(e);
@@ -587,7 +587,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
         Node *e;
         struct inode *inode;
         struct dentry *root, *dentry;
-        struct super_block *sb = file->f_path.mnt->mnt_sb;
+        struct super_block *sb = file->f_path.dentry->d_sb;
         int err = 0;
 
         e = create_entry(buffer, count);
@@ -666,7 +666,7 @@ static ssize_t bm_status_write(struct file * file, const char __user * buffer,
         switch (res) {
                 case 1: enabled = 0; break;
                 case 2: enabled = 1; break;
-                case 3: root = dget(file->f_path.mnt->mnt_sb->s_root);
+                case 3: root = dget(file->f_path.dentry->d_sb->s_root);
                         mutex_lock(&root->d_inode->i_mutex);
 
                         while (!list_empty(&entries))