fix mutex issue in semaphore.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1927 bbd45198-f89e-11dd-88c7-29a3b14d5316

12 files changed, 333 insertions, 60 deletions

diff --git a/components/dfs/SConscript b/components/dfs/SConscript
index 3afa2629ee..728bcd65d0 100644
--- a/components/dfs/SConscript
+++ b/components/dfs/SConscript
@@ -94,54 +94,41 @@ filesystems/uffs/flash/nand_ids.c
 '''

 

 jffs2 = Split('''

-jffs2/dfs_jffs2.c

-jffs2/porting.c

-

-jffs2/cyg/compress/src/adler32.c

-jffs2/cyg/compress/src/compress.c

-jffs2/cyg/compress/src/deflate.c

-jffs2/cyg/compress/src/infback.c

-jffs2/cyg/compress/src/infblock.c

-jffs2/cyg/compress/src/inffast.c

-jffs2/cyg/compress/src/inflate.c

-jffs2/cyg/compress/src/inftrees.c

-jffs2/cyg/compress/src/maketree.c

-jffs2/cyg/compress/src/trees.c

-jffs2/cyg/compress/src/uncompr.c

-jffs2/cyg/compress/src/zutil.c

-

-jffs2/cyg/crc/crc16.c

-jffs2/cyg/crc/crc32.c

-jffs2/cyg/crc/posix_crc.c

-jffs2/kernel/rbtree.c

-jffs2/src/build.c

-jffs2/src/compr.c

-jffs2/src/compr_rtime.c

-jffs2/src/compr_rubin.c

-jffs2/src/compr_zlib.c

-jffs2/src/debug.c

-jffs2/src/dir-ecos.c

-jffs2/src/erase.c

-jffs2/src/flashio.c

-jffs2/src/fs-ecos.c

-jffs2/src/gc.c

-jffs2/src/gcthread.c

-jffs2/src/malloc-ecos.c

-jffs2/src/nodelist.c

-jffs2/src/nodemgmt.c

-jffs2/src/read.c

-jffs2/src/readinode.c

-jffs2/src/scan.c

-jffs2/src/write.c

+filesystems/jffs2/dfs_jffs2.c

+filesystems/jffs2/porting.c

+filesystems/jffs2/cyg/crc/crc16.c

+filesystems/jffs2/cyg/crc/crc32.c

+filesystems/jffs2/cyg/crc/posix_crc.c

+filesystems/jffs2/kernel/rbtree.c

+filesystems/jffs2/src/build.c

+filesystems/jffs2/src/compr.c

+filesystems/jffs2/src/compr_rtime.c

+filesystems/jffs2/src/compr_rubin.c

+filesystems/jffs2/src/debug.c

+filesystems/jffs2/src/dir-ecos.c

+filesystems/jffs2/src/erase.c

+filesystems/jffs2/src/flashio.c

+filesystems/jffs2/src/fs-ecos.c

+filesystems/jffs2/src/gc.c

+filesystems/jffs2/src/malloc-ecos.c

+filesystems/jffs2/src/nodelist.c

+filesystems/jffs2/src/nodemgmt.c

+filesystems/jffs2/src/read.c

+filesystems/jffs2/src/readinode.c

+filesystems/jffs2/src/scan.c

+filesystems/jffs2/src/write.c

 ''')

 

 src_local = dfs

+CPPDEFINES = []

+

 # The set of source files associated with this SConscript file.

 path = [RTT_ROOT + '/components/dfs', RTT_ROOT + '/components/dfs/include']

 

 if GetDepend('RT_USING_DFS_YAFFS2'):

     src_local = src_local + yaffs2_main + yaffs2_comm

-    path = path + [RTT_ROOT + '/components/dfs/filesystems/yaffs2', RTT_ROOT + '/components/dfs/filesystems/yaffs2/direct']

+    path = path + [RTT_ROOT + '/components/dfs/filesystems/yaffs2', \

+        RTT_ROOT + '/components/dfs/filesystems/yaffs2/direct']

 

 if GetDepend('RT_USING_DFS_ELMFAT'):

     if GetDepend('RT_DFS_ELM_USE_LFN'):

@@ -162,12 +149,18 @@ if GetDepend('RT_USING_DFS_DEVFS'):
 

 if GetDepend('RT_USING_DFS_UFFS'):

     src_local = src_local + uffs

-    path = path + [RTT_ROOT + '/components/dfs/filesystems/uffs/src/inc', RTT_ROOT + '/components/dfs/filesystems/uffs', RTT_ROOT + '/components/dfs/filesystems/uffs/flash']

+    path = path + [RTT_ROOT + '/components/dfs/filesystems/uffs/src/inc', \

+        RTT_ROOT + '/components/dfs/filesystems/uffs', \

+        RTT_ROOT + '/components/dfs/filesystems/uffs/flash']

 

 if GetDepend('RT_USING_DFS_JFFS2'):

     src_local = src_local + jffs2

-    path = path + [RTT_ROOT + '/components/dfs/filesystems/jffs2/src', RTT_ROOT + '/components/dfs/filesystems/jffs2/kernel', RTT_ROOT + '/components/dfs/filesystems/jffs2/include', RTT_ROOT + '/components/dfs/filesystems/jffs2', RTT_ROOT + '/components/dfs/filesystems/jffs2/cyg/compress']

-	

-group = DefineGroup('Filesystem', src_local, depend = ['RT_USING_DFS'], CPPPATH = path)

+    path = path + [RTT_ROOT + '/components/dfs/filesystems/jffs2/src', \

+        RTT_ROOT + '/components/dfs/filesystems/jffs2/kernel', \

+        RTT_ROOT + '/components/dfs/filesystems/jffs2/include', \

+        RTT_ROOT + '/components/dfs/filesystems/jffs2']

+    CPPDEFINES = CPPDEFINES + ['__ECOS']

+

+group = DefineGroup('Filesystem', src_local, depend = ['RT_USING_DFS'], CPPPATH = path, CPPDEFINES = CPPDEFINES)

 

 Return('group')

diff --git a/components/dfs/filesystems/jffs2/dfs_jffs2.c b/components/dfs/filesystems/jffs2/dfs_jffs2.c
index a222badf51..b8baa42c56 100644
--- a/components/dfs/filesystems/jffs2/dfs_jffs2.c
+++ b/components/dfs/filesystems/jffs2/dfs_jffs2.c
@@ -21,7 +21,7 @@
 #include <dfs_fs.h>
 #include <dfs_def.h>
 
-#include <dfs_jffs2.h>
+#include "dfs_jffs2.h"
 #include "porting.h"
 
 #define FILE_PATH_MAX   256 /* the longest file path */
@@ -165,7 +165,7 @@ static int dfs_jffs2_mount(struct dfs_filesystem* fs,
 	 * s_dev in struct super_block, and mte->data will be
 	 * filled with jffs2_sb(see the source of jffs2_mount.
 	 */
-	mte->data = fs->dev_id;

+	mte->data = (CYG_ADDRWORD)fs->dev_id;

 
 	device_partition[index].dev = fs->dev_id;	
 	/* after jffs2_mount, mte->data will not be dev_id any more */
diff --git a/components/dfs/filesystems/jffs2/dfs_jffs2.h b/components/dfs/filesystems/jffs2/dfs_jffs2.h
new file mode 100644
index 0000000000..3575acdbbe
--- /dev/null
+++ b/components/dfs/filesystems/jffs2/dfs_jffs2.h
@@ -0,0 +1,6 @@
+#ifndef __DFS_JFFS2_H__ 

+#define __DFS_JFFS2_H__

+

+int dfs_jffs2_init(void);

+

+#endif

diff --git a/components/dfs/filesystems/jffs2/include/linux/jffs2_fs_i.h b/components/dfs/filesystems/jffs2/include/linux/jffs2_fs_i.h
index a5db884ec6..7f30282653 100644
--- a/components/dfs/filesystems/jffs2/include/linux/jffs2_fs_i.h
+++ b/components/dfs/filesystems/jffs2/include/linux/jffs2_fs_i.h
@@ -40,7 +40,7 @@ struct jffs2_inode_info {
 
 	uint16_t flags;
 	uint8_t usercompr;
-#if !defined (__ECOS)
+#if !defined (__ECOS) && !defined(RT_THREAD)
 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2)
 	struct inode vfs_inode;
 #endif
diff --git a/components/dfs/filesystems/jffs2/kernel/asm/semaphore.h b/components/dfs/filesystems/jffs2/kernel/asm/semaphore.h
index d063522f66..704c8bb9c6 100644
--- a/components/dfs/filesystems/jffs2/kernel/asm/semaphore.h
+++ b/components/dfs/filesystems/jffs2/kernel/asm/semaphore.h
@@ -26,13 +26,13 @@ struct semaphore {
 #define DECLARE_MUTEX(x) struct semaphore x = { { .value = 0, } };
 #define DECLARE_MUTEX_LOCKED(x) struct semaphore x = { { .vlalue = 1 } };
 
-#define init_MUTEX(sem) rt_mutex_init((rt_mutex_t *)sem, "mutex", RT_IPC_FLAG_FIFO)
+#define init_MUTEX(sem) rt_mutex_init((rt_mutex_t)sem, "mutex", RT_IPC_FLAG_FIFO)
 #define init_MUTEX_LOCKED(sem) do { \

-		rt_mutex_init((rt_mutex_t *)sem, "mutex", RT_IPC_FLAG_FIFO);\

-		rt_mutex_take((rt_mutex_t *)sem,  RT_WAITING_FOREVER);} \

+		rt_mutex_init((rt_mutex_t)sem, "mutex", RT_IPC_FLAG_FIFO);\

+		rt_mutex_take((rt_mutex_t)sem,  RT_WAITING_FOREVER);} \

 		while(0)
-#define down(sem) rt_mutex_take((rt_mutex_t *)sem,  RT_WAITING_FOREVER)
-#define down_interruptible(sem) ({rt_mutex_take((rt_mutex_t *)sem,  RT_WAITING_FOREVER), 0; })

+#define down(sem) rt_mutex_take((rt_mutex_t)sem,  RT_WAITING_FOREVER)
+#define down_interruptible(sem) ({rt_mutex_take((rt_mutex_t)sem,  RT_WAITING_FOREVER), 0; })

 /*

 Attempt to lock the mutex pointed to by the mutex argument without waiting. 

 If the mutex is already locked by some other thread then this function 

@@ -41,6 +41,6 @@ TRUE is returned.
 void cyg_drv_mutex_unlock( cyg_drv_mutex *mutex )

 */

 
-#define down_trylock(sem) rt_mutex_take((rt_mutex_t *)sem,  RT_WAITING_NO)
-#define up(sem) rt_mutex_release((rt_mutex_t *)sem)
+#define down_trylock(sem) rt_mutex_take((rt_mutex_t)sem,  RT_WAITING_NO)
+#define up(sem) rt_mutex_release((rt_mutex_t)sem)
 #endif /* __ASM_SEMAPHORE_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/config.h b/components/dfs/filesystems/jffs2/kernel/linux/config.h
index 9c404b7c73..4e14c05109 100644
--- a/components/dfs/filesystems/jffs2/kernel/linux/config.h
+++ b/components/dfs/filesystems/jffs2/kernel/linux/config.h
@@ -1,5 +1,13 @@
 #ifndef __LINUX_CONFIG_H__
-#define __LINUX_CONFIG_H__
+#define __LINUX_CONFIG_H__

+

 #define CONFIG_JFFS2_FS_DEBUG  0

 #define GFP_KERNEL 0
+

+/* #define CONFIG_JFFS2_FS_WRITEBUFFER 0 */
+/* #define CONFIG_JFFS2_PROC  */

+/* #define CONFIG_JFFS2_RTIME */

+/* #define CONFIG_JFFS2_RUBIN */

+/* #define CONFIG_JFFS2_ZLIB  */

+

 #endif /* __LINUX_CONFIG_H__ */
diff --git a/components/dfs/filesystems/jffs2/kernel/linux/version.h b/components/dfs/filesystems/jffs2/kernel/linux/version.h
index cca2d731f1..aa4fae362d 100644
--- a/components/dfs/filesystems/jffs2/kernel/linux/version.h
+++ b/components/dfs/filesystems/jffs2/kernel/linux/version.h
@@ -1,5 +1,6 @@
 #ifndef __LINUX_VERSION_H__
 #define __LINUX_VERSION_H__
 
+#include <rtthread.h>

 
 #endif /* __LINUX_VERSION_H__ */
diff --git a/components/dfs/filesystems/jffs2/porting.c b/components/dfs/filesystems/jffs2/porting.c
index f0a491e9a0..f8722497f2 100644
--- a/components/dfs/filesystems/jffs2/porting.c
+++ b/components/dfs/filesystems/jffs2/porting.c
@@ -21,4 +21,4 @@ void jffs2_get_info_from_sb(void * data, struct jffs2_fs_info * info)
 	info->sector_size = c->sector_size; 
 	info->nr_blocks = c->nr_blocks;
 	info->free_size = c->free_size; //fixme need test!	

-}
\ No newline at end of file
+}

diff --git a/components/dfs/filesystems/jffs2/porting.h b/components/dfs/filesystems/jffs2/porting.h
index ed99cd8e29..bd30adfd86 100644
--- a/components/dfs/filesystems/jffs2/porting.h
+++ b/components/dfs/filesystems/jffs2/porting.h
@@ -35,4 +35,4 @@ struct jffs2_dirent
 	// should be used with caution.
 	char        d_name[NAME_MAX+1];
 };

-#endif
\ No newline at end of file
+#endif

diff --git a/components/dfs/filesystems/jffs2/src/nodelist.h b/components/dfs/filesystems/jffs2/src/nodelist.h
index 13c1e04a2d..710e1b9be4 100644
--- a/components/dfs/filesystems/jffs2/src/nodelist.h
+++ b/components/dfs/filesystems/jffs2/src/nodelist.h
@@ -22,7 +22,9 @@
 #include <linux/jffs2_fs_i.h>
 
 #ifdef __ECOS
-#include "os-ecos.h"
+#include "os-ecos.h"

+#elif defined(RT_THREAD)

+#include "os-rtthread.h"
 #else
 #include <linux/mtd/compatmac.h> /* For compatibility with older kernels */
 #include "os-linux.h"
diff --git a/components/dfs/filesystems/jffs2/src/os-ecos.h b/components/dfs/filesystems/jffs2/src/os-ecos.h
index 8d4f59a7fd..b60961fb81 100644
--- a/components/dfs/filesystems/jffs2/src/os-ecos.h
+++ b/components/dfs/filesystems/jffs2/src/os-ecos.h
@@ -15,8 +15,6 @@
 #define __JFFS2_OS_ECOS_H__
 
 #include <rtthread.h>
-#define malloc rt_malloc	 
-#define free rt_free
 #define printf rt_kprintf

 
 //#include <pkgconf/fs_jffs2.h>
diff --git a/components/dfs/filesystems/jffs2/src/os-rtthread.h b/components/dfs/filesystems/jffs2/src/os-rtthread.h
new file mode 100644
index 0000000000..02eabf8434
--- /dev/null
+++ b/components/dfs/filesystems/jffs2/src/os-rtthread.h
@@ -0,0 +1,265 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright (C) 2002-2003 Free Software Foundation, Inc.
+ *
+ * Created by David Woodhouse <[email protected]>
+ *
+ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+ * $Id: os-ecos.h,v 1.24 2005/02/09 09:23:55 pavlov Exp $
+ *
+ */
+
+#ifndef __JFFS2_OS_RTTHREAD_H__
+#define __JFFS2_OS_RTTHREAD_H__
+
+#include <rtthread.h>
+#define printf rt_kprintf

+
+//#include <pkgconf/fs_jffs2.h>
+//#include <cyg/io/io.h>
+//#include <sys/types.h>
+#include <asm/atomic.h>
+#include <linux/stat.h>
+#include <linux/compiler.h>
+
+//#include <pkgconf/system.h>
+//#include <pkgconf/hal.h>
+//#include <pkgconf/io_fileio.h>
+
+//#include <cyg/infra/cyg_trac.h>        // tracing macros
+//#include <cyg/infra/cyg_ass.h>         // assertion macros
+
+//#if defined (__GNUC__) 
+//#include <unistd.h>
+//#elif defined (MSVC)
+//#else
+//#endif
+
+#include "os_sys_stat.h"//#include <sys/types.h>
+//#include <fcntl.h>
+//#include <sys/stat.h>
+//#include <errno.h> //fixme
+
+//#include <dirent.h>
+#define  CYGPKG_FILEIO_DIRENT_DTYPE
+struct dirent
+{
+#ifdef CYGPKG_FILEIO_DIRENT_DTYPE
+
+	mode_t      d_type; // Only supported with FATFS, RAMFS, ROMFS,
+	// and JFFS2.
+	// d_type is not part of POSIX so
+	// should be used with caution.
+#endif
+	char        d_name[NAME_MAX+1];
+};
+
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <cyg/fileio/fileio.h>  //prife
+
+//#include <cyg/hal/drv_api.h>
+//#include <cyg/infra/diag.h>
+
+//#include <cyg/io/flash.h>
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <asm/bug.h>
+
+//#define printf diag_printf   //prife
+
+struct _inode;
+struct super_block;
+
+struct iovec {
+        void *iov_base;
+        ssize_t iov_len;
+};
+
+static inline unsigned int full_name_hash(const unsigned char * name, unsigned int len) {
+
+	unsigned hash = 0;
+ 	while (len--) {
+		hash = (hash << 4) | (hash >> 28);
+		hash ^= *(name++);
+	}
+	return hash;
+}
+
+#ifdef CYGOPT_FS_JFFS2_WRITE
+#define jffs2_is_readonly(c) (0)
+#else
+#define jffs2_is_readonly(c) (1)
+#endif
+
+/* NAND flash not currently supported on eCos */
+#define jffs2_can_mark_obsolete(c) (1)
+
+#define JFFS2_INODE_INFO(i) (&(i)->jffs2_i)
+#define OFNI_EDONI_2SFFJ(f)  ((struct _inode *) ( ((char *)f) - ((char *)(&((struct _inode *)NULL)->jffs2_i)) ) )
+
+#define JFFS2_F_I_SIZE(f) (OFNI_EDONI_2SFFJ(f)->i_size)
+#define JFFS2_F_I_MODE(f) (OFNI_EDONI_2SFFJ(f)->i_mode)
+#define JFFS2_F_I_UID(f) (OFNI_EDONI_2SFFJ(f)->i_uid)
+#define JFFS2_F_I_GID(f) (OFNI_EDONI_2SFFJ(f)->i_gid)
+#define JFFS2_F_I_CTIME(f) (OFNI_EDONI_2SFFJ(f)->i_ctime)
+#define JFFS2_F_I_MTIME(f) (OFNI_EDONI_2SFFJ(f)->i_mtime)
+#define JFFS2_F_I_ATIME(f) (OFNI_EDONI_2SFFJ(f)->i_atime)
+
+/* FIXME: eCos doesn't hav a concept of device major/minor numbers */
+#define JFFS2_F_I_RDEV_MIN(f) ((OFNI_EDONI_2SFFJ(f)->i_rdev)&0xff)
+#define JFFS2_F_I_RDEV_MAJ(f) ((OFNI_EDONI_2SFFJ(f)->i_rdev)>>8)
+
+#define get_seconds cyg_timestamp
+
+struct _inode {
+	cyg_uint32		i_ino;
+
+	int			i_count;
+	mode_t			i_mode;
+	nlink_t			i_nlink; // Could we dispense with this?
+	uid_t			i_uid;
+	gid_t			i_gid;
+	time_t			i_atime;
+	time_t			i_mtime;
+	time_t			i_ctime;
+//	union {
+		unsigned short	i_rdev; // For devices only
+		struct _inode *	i_parent; // For directories only
+		off_t		i_size; // For files only
+//	};
+	struct super_block *	i_sb;
+
+	struct jffs2_inode_info	jffs2_i;
+
+        struct _inode *		i_cache_prev; // We need doubly-linked?
+        struct _inode *		i_cache_next;
+};
+
+#define JFFS2_SB_INFO(sb) (&(sb)->jffs2_sb)
+#define OFNI_BS_2SFFJ(c)  ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->jffs2_sb)) ) )
+
+struct super_block {
+	struct jffs2_sb_info	jffs2_sb;
+	struct _inode *		s_root;
+    unsigned long		s_mount_count;
+	cyg_io_handle_t		s_dev;
+
+//#ifdef CYGOPT_FS_JFFS2_GCTHREAD
+//	cyg_mutex_t s_lock;             // Lock the inode cache
+//	cyg_flag_t  s_gc_thread_flags;  // Communication with the gcthread
+//	cyg_handle_t s_gc_thread_handle;
+//	cyg_thread s_gc_thread;
+//#if (CYGNUM_JFFS2_GC_THREAD_STACK_SIZE >= CYGNUM_HAL_STACK_SIZE_MINIMUM)
+//    char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
+//#else
+//    char s_gc_thread_stack[CYGNUM_HAL_STACK_SIZE_MINIMUM];
+//#endif
+//    cyg_mtab_entry *mte;
+//#endif

+

+#ifdef CYGOPT_FS_JFFS2_GCTHREAD
+	struct rt_mutex s_lock;             // Lock the inode cache
+	struct rt_event s_gc_thread_flags;  // Communication with the gcthread
+	//void (*s_gc_thread_handle)(void *parameter);
+	struct rt_thread s_gc_thread;
+//#if (CYGNUM_JFFS2_GC_THREAD_STACK_SIZE >= CYGNUM_HAL_STACK_SIZE_MINIMUM)
+//    char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
+//#else
+//    char s_gc_thread_stack[CYGNUM_HAL_STACK_SIZE_MINIMUM];
+//#endif

+	#define CYGNUM_JFFS2_GC_THREAD_STACK_SIZE  (1024*4)
+    char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];

+
+    cyg_mtab_entry *mte;
+#endif

+
+};
+
+#define sleep_on_spinunlock(wq, sl) spin_unlock(sl)
+#define EBADFD 32767
+
+/* background.c */
+#ifdef CYGOPT_FS_JFFS2_GCTHREAD
+void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c);
+void jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c);
+void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c);
+#else
+static inline void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)
+{
+	/* We don't have a GC thread in eCos (yet) */
+}
+#endif
+
+/* fs-ecos.c */
+struct _inode *jffs2_new_inode (struct _inode *dir_i, int mode, struct jffs2_raw_inode *ri);
+struct _inode *jffs2_iget(struct super_block *sb, cyg_uint32 ino);
+void jffs2_iput(struct _inode * i);
+void jffs2_gc_release_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f);
+struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c, int inum, int nlink);
+unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
+				   unsigned long offset, unsigned long *priv);
+void jffs2_gc_release_page(struct jffs2_sb_info *c, unsigned char *pg, unsigned long *priv);
+
+/* Avoid polluting eCos namespace with names not starting in jffs2_ */
+#define os_to_jffs2_mode(x) jffs2_from_os_mode(x)
+uint32_t jffs2_from_os_mode(uint32_t osmode);
+uint32_t jffs2_to_os_mode (uint32_t jmode);
+
+
+/* flashio.c */
+cyg_bool jffs2_flash_read(struct jffs2_sb_info *c, cyg_uint32 read_buffer_offset,
+			  const size_t size, size_t * return_size, unsigned char * write_buffer);
+cyg_bool jffs2_flash_write(struct jffs2_sb_info *c, cyg_uint32 write_buffer_offset,
+			   const size_t size, size_t * return_size, unsigned char * read_buffer);
+int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct iovec *vecs,
+			      unsigned long count, loff_t to, size_t *retlen);
+cyg_bool jffs2_flash_erase(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
+
+// dir-ecos.c
+struct _inode *jffs2_lookup(struct _inode *dir_i, const unsigned char *name, int namelen);
+int jffs2_create(struct _inode *dir_i, const unsigned char *d_name, int mode, struct _inode **new_i);
+int jffs2_mkdir (struct _inode *dir_i, const unsigned char *d_name, int mode);
+int jffs2_link (struct _inode *old_d_inode, struct _inode *dir_i, const unsigned char *d_name);
+int jffs2_unlink(struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name);
+int jffs2_rmdir (struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name);
+int jffs2_rename (struct _inode *old_dir_i, struct _inode *d_inode, const unsigned char *old_d_name,
+		  struct _inode *new_dir_i, const unsigned char *new_d_name);
+
+/* erase.c */
+static inline void jffs2_erase_pending_trigger(struct jffs2_sb_info *c)
+{ }
+
+#ifndef CONFIG_JFFS2_FS_WRITEBUFFER
+#define SECTOR_ADDR(x) ( ((unsigned long)(x) & ~(c->sector_size-1)) )
+#define jffs2_can_mark_obsolete(c) (1)
+#define jffs2_cleanmarker_oob(c) (0)
+#define jffs2_write_nand_cleanmarker(c,jeb) (-EIO)
+
+#define jffs2_flush_wbuf_pad(c) (c=c)
+#define jffs2_flush_wbuf_gc(c, i) ({ (void)(c), (void) i, 0; })
+#define jffs2_nand_read_failcnt(c,jeb) do { ; } while(0)
+#define jffs2_write_nand_badblock(c,jeb,p) (0)
+#define jffs2_flash_setup(c) (0)
+#define jffs2_nand_flash_cleanup(c) do {} while(0)
+#define jffs2_wbuf_dirty(c) (0)
+#define jffs2_flash_writev(a,b,c,d,e,f) jffs2_flash_direct_writev(a,b,c,d,e)
+#define jffs2_wbuf_timeout NULL
+#define jffs2_wbuf_process NULL
+#define jffs2_nor_ecc(c) (0)
+#else
+#error no nand yet
+#endif
+
+#ifndef BUG_ON
+#define BUG_ON(x) do { if (unlikely(x)) BUG(); } while(0)
+#endif
+
+#define __init
+
+#endif /* __JFFS2_OS_ECOS_H__ */