[PATCH] r/o bind mounts: unlink: monitor i_nlink

[deliverable/linux.git] / fs / vfat / namei.c

diff --git a/fs/vfat/namei.c b/fs/vfat/namei.c
index ef46939c0c1a9cdaf1fd643806d14bad77270743..090d74ffa0615aa09a651dab6bfa6733784965cf 100644 (file)
--- a/fs/vfat/namei.c
+++ b/fs/vfat/namei.c
@@ -185,24 +185,6 @@ static int vfat_valid_longname(const unsigned char *name, unsigned int len)
                return -EINVAL;
        if (len >= 256)
                return -ENAMETOOLONG;
-
-       /* MS-DOS "device special files" */
-       if (len == 3 || (len > 3 && name[3] == '.')) {  /* basename == 3 */
-               if (!strnicmp(name, "aux", 3) ||
-                   !strnicmp(name, "con", 3) ||
-                   !strnicmp(name, "nul", 3) ||
-                   !strnicmp(name, "prn", 3))
-                       return -EINVAL;
-       }
-       if (len == 4 || (len > 4 && name[4] == '.')) {  /* basename == 4 */
-               /* "com1", "com2", ... */
-               if ('1' <= name[3] && name[3] <= '9') {
-                       if (!strnicmp(name, "com", 3) ||
-                           !strnicmp(name, "lpt", 3))
-                               return -EINVAL;
-               }
-       }
-
        return 0;
 }
 
@@ -800,7 +782,7 @@ static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
        err = fat_remove_entries(dir, &sinfo);  /* and releases bh */
        if (err)
                goto out;
-       dir->i_nlink--;
+       drop_nlink(dir);
 
        inode->i_nlink = 0;
        inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
@@ -948,7 +930,7 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
                        if (err)
                                goto error_dotdot;
                }
-               old_dir->i_nlink--;
+               drop_nlink(old_dir);
                if (!new_inode)
                        new_dir->i_nlink++;
        }
@@ -965,10 +947,9 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
                mark_inode_dirty(old_dir);
 
        if (new_inode) {
+               drop_nlink(new_inode);
                if (is_dir)
-                       new_inode->i_nlink -= 2;
-               else
-                       new_inode->i_nlink--;
+                       drop_nlink(new_inode);
                new_inode->i_ctime = ts;
        }
 out:
@@ -1041,11 +1022,12 @@ static int vfat_fill_super(struct super_block *sb, void *data, int silent)
        return 0;
 }
 
-static struct super_block *vfat_get_sb(struct file_system_type *fs_type,
-                                      int flags, const char *dev_name,
-                                      void *data)
+static int vfat_get_sb(struct file_system_type *fs_type,
+                      int flags, const char *dev_name,
+                      void *data, struct vfsmount *mnt)
 {
-       return get_sb_bdev(fs_type, flags, dev_name, data, vfat_fill_super);
+       return get_sb_bdev(fs_type, flags, dev_name, data, vfat_fill_super,
+                          mnt);
 }
 
 static struct file_system_type vfat_fs_type = {