2 * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
4 * Copyright (C) 2002-2018 Aleph One Ltd.
6 * Created by Charles Manning <charles@aleph1.co.uk>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU Lesser General Public License version 2.1 as
10 * published by the Free Software Foundation.
12 * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
15 #ifndef __YAFFS_LINUX_H__
16 #define __YAFFS_LINUX_H__
20 struct yaffs_linux_context {
21 struct list_head context_list; /* List of these we have mounted */
22 struct yaffs_dev *dev;
23 struct super_block *super;
24 struct task_struct *bg_thread; /* Background thread for this device */
26 struct mutex gross_lock; /* Gross locking mutex*/
27 u8 *spare_buffer; /* For mtdif2 use. Don't know the buffer size
28 * at compile time so we have to allocate it.
30 struct list_head search_contexts;
31 struct task_struct *readdir_process;
36 #define yaffs_dev_to_lc(dev) ((struct yaffs_linux_context *)((dev)->os_context))
37 #define yaffs_dev_to_mtd(dev) ((struct mtd_info *)((dev)->driver_context))
39 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
40 #define WRITE_SIZE_STR "writesize"
41 #define WRITE_SIZE(mtd) ((mtd)->writesize)
43 #define WRITE_SIZE_STR "oobblock"
44 #define WRITE_SIZE(mtd) ((mtd)->oobblock)