*/
-const char *yaffs_fs_c_version = "$Id: yaffs_fs.c,v 1.23 2005-08-01 20:52:35 luc Exp $";
+const char *yaffs_fs_c_version = "$Id: yaffs_fs.c,v 1.24 2005-08-01 20:54:45 luc Exp $";
extern const char *yaffs_guts_c_version;
//unsigned yaffs_traceMask = 0xFFFFFFFF;
-#ifdef CONFIG_YAFFS_RAM_ENABLED
-#include "yaffs_nandemul.h"
-// 2 MB of RAM for emulation
-#define YAFFS_RAM_EMULATION_SIZE 0x200000
-#endif //CONFIG_YAFFS_RAM_ENABLED
-
-#if CONFIG_YAFFS2_RAM_ENABLED
-#include "yaffs_nandemul2k.h"
-#endif
-
#ifdef CONFIG_YAFFS_YAFFS1
#include <linux/mtd/mtd.h>
#include "yaffs_mtdif.h"
#endif
-static struct super_block *yaffs_internal_read_super(int yaffsVersion,int useRam, struct super_block * sb, void * data, int silent)
+static struct super_block *yaffs_internal_read_super(int yaffsVersion, struct super_block * sb, void * data, int silent)
{
int nBlocks;
struct inode * inode = NULL;
sb->s_blocksize = PAGE_CACHE_SIZE;
sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
T(YAFFS_TRACE_OS,("yaffs_read_super: Using yaffs%d\n",yaffsVersion));
- T(YAFFS_TRACE_OS,("yaffs_read_super: %s block size %d\n", useRam ? "RAM" : "MTD",(int)(sb->s_blocksize)));
+ T(YAFFS_TRACE_OS,("yaffs_read_super: block size %d\n", (int)(sb->s_blocksize)));
#ifdef CONFIG_YAFFS_DISABLE_WRITE_VERIFY
T(YAFFS_TRACE_OS,("yaffs: Write verification disabled. All guarantees null and void\n"));
- if(useRam)
{
-
-#ifdef CONFIG_YAFFS_RAM_ENABLED
- // Set the yaffs_Device up for ram emulation
-
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
- sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device),GFP_KERNEL);
-#else
- sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device),GFP_KERNEL);
-#endif
-
- if(!dev)
- {
- // Deep shit could not allocate device structure
- T(YAFFS_TRACE_OS,("yaffs_read_super: Failed trying to allocate yaffs_Device.\n"));
- return NULL;
- }
-
- memset(dev,0,sizeof(yaffs_Device));
- dev->genericDevice = NULL; // Not used for RAM emulation.
- dev->name = sb->s_type->name;
-
- nBlocks = YAFFS_RAM_EMULATION_SIZE / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK);
- dev->startBlock = 0;
- dev->endBlock = nBlocks - 1;
- dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK;
- dev->nBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
- dev->nReservedBlocks = 5;
-
- if(yaffsVersion == 2)
- {
- dev->writeChunkWithTagsToNAND = nandemul2k_WriteChunkWithTagsToNAND;
- dev->readChunkWithTagsFromNAND = nandemul2k_ReadChunkWithTagsFromNAND;
- dev->markNANDBlockBad = nandemul2k_MarkNANDBlockBad;
- dev->queryNANDBlock = nandemul2k_QueryNANDBlock;
- dev->eraseBlockInNAND = nandemul2k_EraseBlockInNAND;
- dev->initialiseNAND = nandemul2k_InitialiseNAND;
- dev->isYaffs2 = 1;
- dev->nChunksPerBlock = nandemul2k_GetChunksPerBlock();
- dev->nBytesPerChunk = nandemul2k_GetBytesPerChunk();;
- nBlocks = nandemul2k_GetNumberOfBlocks();
- dev->startBlock = 0;
- dev->endBlock = nBlocks - 1;
- }
- else
- {
- dev->writeChunkToNAND = nandemul_WriteChunkToNAND;
- dev->readChunkFromNAND = nandemul_ReadChunkFromNAND;
- dev->eraseBlockInNAND = nandemul_EraseBlockInNAND;
- dev->initialiseNAND = nandemul_InitialiseNAND;
- dev->isYaffs2 = 0;
- }
-#endif
-
- }
- else
- {
-#if defined(CONFIG_YAFFS_YAFFS1) || defined(CONFIG_YAFFS_YAFFS2)
struct mtd_info *mtd;
T(YAFFS_TRACE_ALWAYS,("yaffs: Attempting MTD mount on %u.%u, \"%s\"\n",
#ifdef CONFIG_YAFFS_USE_NANDECC
dev->useNANDECC = 1;
-#endif
#endif
}
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
static int yaffs_internal_read_super_mtd(struct super_block * sb, void * data, int silent)
{
- return yaffs_internal_read_super(1,0,sb,data,silent) ? 0 : -1;
+ return yaffs_internal_read_super(1,sb,data,silent) ? 0 : -1;
}
static struct super_block *yaffs_read_super(struct file_system_type * fs, int flags, const char *dev_name, void *data)
#else
static struct super_block *yaffs_read_super(struct super_block * sb, void * data, int silent)
{
- return yaffs_internal_read_super(1,0,sb,data,silent);
+ return yaffs_internal_read_super(1,sb,data,silent);
}
static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super, FS_REQUIRES_DEV);
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
static int yaffs2_internal_read_super_mtd(struct super_block * sb, void * data, int silent)
{
- return yaffs_internal_read_super(2,0,sb,data,silent) ? 0 : -1;
+ return yaffs_internal_read_super(2,sb,data,silent) ? 0 : -1;
}
static struct super_block *yaffs2_read_super(struct file_system_type * fs, int flags, const char *dev_name, void *data)
#else
static struct super_block *yaffs2_read_super(struct super_block * sb, void * data, int silent)
{
- return yaffs_internal_read_super(2,0,sb,data,silent);
+ return yaffs_internal_read_super(2,sb,data,silent);
}
static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super, FS_REQUIRES_DEV);
#endif // CONFIG_YAFFS_YAFFS2
-#ifdef CONFIG_YAFFS_RAM_ENABLED
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs_internal_read_super_ram(struct super_block * sb, void * data, int silent)
-{
- return yaffs_internal_read_super(1,1,sb,data,silent) ? 0 : -1;
-}
-
-static struct super_block *yaffs_ram_read_super(struct file_system_type * fs, int flags, const char *dev_name, void *data)
-{
-
- return get_sb_nodev(fs, flags, data, yaffs_internal_read_super_ram);
-}
-
-
-static struct file_system_type yaffs_ram_fs_type = {
- .owner = THIS_MODULE,
- .name = "yaffsram",
- .get_sb = yaffs_ram_read_super,
- .kill_sb = kill_litter_super,
- .fs_flags = 0 ,
-};
-#else
-static struct super_block *yaffs_ram_read_super(struct super_block * sb, void * data, int silent)
-{
- return yaffs_internal_read_super(1,1,sb,data,silent);
-}
-
-static DECLARE_FSTYPE(yaffs_ram_fs_type, "yaffsram", yaffs_ram_read_super, FS_SINGLE);
-#endif
-
-#endif // CONFIG_YAFFS_RAM_ENABLED
-
-#ifdef CONFIG_YAFFS2_RAM_ENABLED
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int yaffs2_internal_read_super_ram(struct super_block * sb, void * data, int silent)
-{
- return yaffs_internal_read_super(2,1,sb,data,silent) ? 0 : -1;
-}
-
-static struct super_block *yaffs2_ram_read_super(struct file_system_type * fs, int flags, const char *dev_name, void *data)
-{
-
- return get_sb_nodev(fs, flags, data, yaffs2_internal_read_super_ram);
-}
-
-
-static struct file_system_type yaffs2_ram_fs_type = {
- .owner = THIS_MODULE,
- .name = "yaffs2ram",
- .get_sb = yaffs2_ram_read_super,
- .kill_sb = kill_litter_super,
- .fs_flags = 0 ,
-};
-#else
-static struct super_block *yaffs2_ram_read_super(struct super_block * sb, void * data, int silent)
-{
- return yaffs_internal_read_super(2,1,sb,data,silent);
-}
-
-static DECLARE_FSTYPE(yaffs2_ram_fs_type, "yaffs2ram", yaffs2_ram_read_super, FS_SINGLE);
-#endif
-
-#endif // CONFIG_YAFFS2_RAM_ENABLED
-
static struct proc_dir_entry *my_proc_entry;
return buf-page < count ? buf-page : count;
}
-#ifdef CONFIG_YAFFS2_RAM_ENABLED
-static int yaffs_proc_ram_write(
- char *page,
- char **start,
- off_t offset,
- int count,
- int *eof,
- void *data
- )
-{
-
- printk(KERN_DEBUG "yaffs write size %d\n",count);
- return count;
-}
-#endif
-
// Stuff to handle installation of file systems
struct file_system_to_install
{
static struct file_system_to_install fs_to_install[] =
{
-#ifdef CONFIG_YAFFS_RAM_ENABLED
- { &yaffs_ram_fs_type, 0},
-#endif
-#ifdef CONFIG_YAFFS2_RAM_ENABLED
- { &yaffs2_ram_fs_type,0},
-#endif
#ifdef CONFIG_YAFFS_YAFFS1
{ &yaffs_fs_type,0},
#endif