1 files changed, 19 insertions, 16 deletions

diff --git a/fs/msdos/namei.c b/fs/msdos/namei.c
index 05ff4f1d7026..1f7f2956412a 100644
--- a/fs/msdos/namei.c
+++ b/fs/msdos/namei.c
@@ -214,7 +214,7 @@ static struct dentry *msdos_lookup(struct inode *dir, struct dentry *dentry,
 
         dentry->d_op = &msdos_dentry_operations;
 
-        lock_kernel();
+        lock_super(sb);
         res = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo);
         if (res == -ENOENT)
                 goto add;
@@ -232,7 +232,7 @@ add:
         if (dentry)
                 dentry->d_op = &msdos_dentry_operations;
 out:
-        unlock_kernel();
+        unlock_super(sb);
         if (!res)
                 return dentry;
         return ERR_PTR(res);
@@ -286,7 +286,7 @@ static int msdos_create(struct inode *dir, struct dentry *dentry, int mode,
         unsigned char msdos_name[MSDOS_NAME];
         int err, is_hid;
 
-        lock_kernel();
+        lock_super(sb);
 
         err = msdos_format_name(dentry->d_name.name, dentry->d_name.len,
                                 msdos_name, &MSDOS_SB(sb)->options);
@@ -315,7 +315,7 @@ static int msdos_create(struct inode *dir, struct dentry *dentry, int mode,
 
         d_instantiate(dentry, inode);
 out:
-        unlock_kernel();
+        unlock_super(sb);
         if (!err)
                 err = fat_flush_inodes(sb, dir, inode);
         return err;
@@ -324,11 +324,12 @@ out:
 /***** Remove a directory */
 static int msdos_rmdir(struct inode *dir, struct dentry *dentry)
 {
+        struct super_block *sb = dir->i_sb;
         struct inode *inode = dentry->d_inode;
         struct fat_slot_info sinfo;
         int err;
 
-        lock_kernel();
+        lock_super(sb);
         /*
          * Check whether the directory is not in use, then check
          * whether it is empty.
@@ -349,9 +350,9 @@ static int msdos_rmdir(struct inode *dir, struct dentry *dentry)
         inode->i_ctime = CURRENT_TIME_SEC;
         fat_detach(inode);
 out:
-        unlock_kernel();
+        unlock_super(sb);
         if (!err)
-                err = fat_flush_inodes(inode->i_sb, dir, inode);
+                err = fat_flush_inodes(sb, dir, inode);
 
         return err;
 }
@@ -366,7 +367,7 @@ static int msdos_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         struct timespec ts;
         int err, is_hid, cluster;
 
-        lock_kernel();
+        lock_super(sb);
 
         err = msdos_format_name(dentry->d_name.name, dentry->d_name.len,
                                 msdos_name, &MSDOS_SB(sb)->options);
@@ -404,14 +405,14 @@ static int msdos_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 
         d_instantiate(dentry, inode);
 
-        unlock_kernel();
+        unlock_super(sb);
         fat_flush_inodes(sb, dir, inode);
         return 0;
 
 out_free:
         fat_free_clusters(dir, cluster);
 out:
-        unlock_kernel();
+        unlock_super(sb);
         return err;
 }
 
@@ -419,10 +420,11 @@ out:
 static int msdos_unlink(struct inode *dir, struct dentry *dentry)
 {
         struct inode *inode = dentry->d_inode;
+        struct super_block *sb= inode->i_sb;
         struct fat_slot_info sinfo;
         int err;
 
-        lock_kernel();
+        lock_super(sb);
         err = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo);
         if (err)
                 goto out;
@@ -434,9 +436,9 @@ static int msdos_unlink(struct inode *dir, struct dentry *dentry)
         inode->i_ctime = CURRENT_TIME_SEC;
         fat_detach(inode);
 out:
-        unlock_kernel();
+        unlock_super(sb);
         if (!err)
-                err = fat_flush_inodes(inode->i_sb, dir, inode);
+                err = fat_flush_inodes(sb, dir, inode);
 
         return err;
 }
@@ -618,10 +620,11 @@ error_inode:
 static int msdos_rename(struct inode *old_dir, struct dentry *old_dentry,
                         struct inode *new_dir, struct dentry *new_dentry)
 {
+        struct super_block *sb = old_dir->i_sb;
         unsigned char old_msdos_name[MSDOS_NAME], new_msdos_name[MSDOS_NAME];
         int err, is_hid;
 
-        lock_kernel();
+        lock_super(sb);
 
         err = msdos_format_name(old_dentry->d_name.name,
                                 old_dentry->d_name.len, old_msdos_name,
@@ -640,9 +643,9 @@ static int msdos_rename(struct inode *old_dir, struct dentry *old_dentry,
         err = do_msdos_rename(old_dir, old_msdos_name, old_dentry,
                               new_dir, new_msdos_name, new_dentry, is_hid);
 out:
-        unlock_kernel();
+        unlock_super(sb);
         if (!err)
-                err = fat_flush_inodes(old_dir->i_sb, old_dir, new_dir);
+                err = fat_flush_inodes(sb, old_dir, new_dir);
         return err;
 }