-/* $Id: jffs2_fs_sb.h,v 1.54 2005/09/21 13:37:34 dedekind Exp $ */
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright © 2001-2007 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@infradead.org>
+ *
+ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+ */
#ifndef _JFFS2_FS_SB
#define _JFFS2_FS_SB
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/completion.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
#include <linux/timer.h>
#include <linux/wait.h>
#include <linux/list.h>
struct completion gc_thread_start; /* GC thread start completion */
struct completion gc_thread_exit; /* GC thread exit completion port */
- struct semaphore alloc_sem; /* Used to protect all the following
+ struct mutex alloc_sem; /* Used to protect all the following
fields, and also to protect against
out-of-order writing of nodes. And GC. */
uint32_t cleanmarker_size; /* Size of an _inline_ CLEANMARKER
uint8_t resv_blocks_gctrigger; /* ... wake up the GC thread */
uint8_t resv_blocks_gcbad; /* ... pick a block from the bad_list to GC */
uint8_t resv_blocks_gcmerge; /* ... merge pages when garbage collecting */
+ /* Number of 'very dirty' blocks before we trigger immediate GC */
+ uint8_t vdirty_blocks_gctrigger;
uint32_t nospc_dirty_size;
struct list_head erasable_list; /* Blocks which are completely dirty, and need erasing */
struct list_head erasable_pending_wbuf_list; /* Blocks which need erasing but only after the current wbuf is flushed */
struct list_head erasing_list; /* Blocks which are currently erasing */
+ struct list_head erase_checking_list; /* Blocks which are being checked and marked */
struct list_head erase_pending_list; /* Blocks which need erasing now */
struct list_head erase_complete_list; /* Blocks which are erased and need the clean marker written to them */
struct list_head free_list; /* Blocks which are free and ready to be used */
/* Sem to allow jffs2_garbage_collect_deletion_dirent to
drop the erase_completion_lock while it's holding a pointer
to an obsoleted node. I don't like this. Alternatives welcomed. */
- struct semaphore erase_free_sem;
+ struct mutex erase_free_sem;
uint32_t wbuf_pagesize; /* 0 for NOR and other flashes with no wbuf */
+#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
+ unsigned char *wbuf_verify; /* read-back buffer for verification */
+#endif
#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
- /* Write-behind buffer for NAND flash */
- unsigned char *wbuf;
- unsigned char *oobbuf;
+ unsigned char *wbuf; /* Write-behind buffer for NAND flash */
uint32_t wbuf_ofs;
uint32_t wbuf_len;
struct jffs2_inodirty *wbuf_inodes;
-
struct rw_semaphore wbuf_sem; /* Protects the write buffer */
- /* Information about out-of-band area usage... */
- struct nand_ecclayout *ecclayout;
- uint32_t badblock_pos;
- uint32_t fsdata_pos;
- uint32_t fsdata_len;
+ unsigned char *oobbuf;
+ int oobavail; /* How many bytes are available for JFFS2 in OOB */
#endif
struct jffs2_summary *summary; /* Summary information */
#ifdef CONFIG_JFFS2_FS_XATTR
#define XATTRINDEX_HASHSIZE (57)
uint32_t highest_xid;
+ uint32_t highest_xseqno;
struct list_head xattrindex[XATTRINDEX_HASHSIZE];
struct list_head xattr_unchecked;
+ struct list_head xattr_dead_list;
+ struct jffs2_xattr_ref *xref_dead_list;
struct jffs2_xattr_ref *xref_temp;
struct rw_semaphore xattr_sem;
uint32_t xdatum_mem_usage;