X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_fs.c;h=e4ea466b54365b4512502743c4437d36d2c098b5;hp=68f28aafe199084c4ccdb9791c0bd731ce82c72d;hb=9625e7b16224f286bb177324f2c1283b9db08286;hpb=36c05dc20667149c315e0d2a4aa3c98c2894da9e diff --git a/yaffs_fs.c b/yaffs_fs.c index 68f28aa..e4ea466 100644 --- a/yaffs_fs.c +++ b/yaffs_fs.c @@ -30,11 +30,10 @@ */ -const char *yaffs_fs_c_version = "$Id: yaffs_fs.c,v 1.16 2005-07-31 03:58:17 marty Exp $"; +const char *yaffs_fs_c_version = "$Id: yaffs_fs.c,v 1.28 2005-08-09 03:52:23 charles Exp $"; extern const char *yaffs_guts_c_version; - #include #include #include @@ -79,21 +78,11 @@ unsigned yaffs_traceMask = YAFFS_TRACE_ALWAYS | YAFFS_TRACE_BAD_BLOCKS; //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_MTD_ENABLED +#ifdef CONFIG_YAFFS_YAFFS1 #include #include "yaffs_mtdif.h" #include "yaffs_mtdif2.h" -#endif //CONFIG_YAFFS_MTD_ENABLED +#endif //CONFIG_YAFFS_YAFFS1 //#define T(x) printk x @@ -101,9 +90,7 @@ unsigned yaffs_traceMask = YAFFS_TRACE_ALWAYS | YAFFS_TRACE_BAD_BLOCKS; #define yaffs_InodeToObject(iptr) ((yaffs_Object *)((iptr)->u.generic_ip)) #define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode) -//NCB #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->u.generic_sbp) -//#if defined(CONFIG_KERNEL_2_5) #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->s_fs_info) #else @@ -113,10 +100,6 @@ unsigned yaffs_traceMask = YAFFS_TRACE_ALWAYS | YAFFS_TRACE_BAD_BLOCKS; static void yaffs_put_super(struct super_block *sb); -#if 0 -static ssize_t yaffs_file_read(struct file *f, char *buf, size_t n, loff_t *pos); -#endif - static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, loff_t *pos); static int yaffs_file_flush(struct file* file); @@ -125,7 +108,6 @@ static int yaffs_sync_object(struct file * file, struct dentry *dentry, int data static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir); -//#if defined(CONFIG_KERNEL_2_5) /* Added NCB 185-8-2003 */ #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *n); static struct dentry * yaffs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *n); @@ -138,7 +120,6 @@ static int yaffs_unlink(struct inode * dir, struct dentry *dentry); static int yaffs_symlink(struct inode * dir, struct dentry *dentry, const char * symname); static int yaffs_mkdir(struct inode * dir, struct dentry * dentry, int mode); -//#if defined(CONFIG_KERNEL_2_5) #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev); #else @@ -147,7 +128,6 @@ static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, int d static int yaffs_rename(struct inode * old_dir, struct dentry *old_dentry, struct inode * new_dir,struct dentry *new_dentry); static int yaffs_setattr(struct dentry *dentry, struct iattr *attr); -//#if defined(CONFIG_KERNEL_2_5) /* Added NCB 185-8-2003 */ #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf); #else @@ -192,7 +172,7 @@ static struct inode_operations yaffs_file_inode_operations = { .setattr = yaffs_setattr, }; -struct inode_operations yaffs_symlink_inode_operations = { +static struct inode_operations yaffs_symlink_inode_operations = { .readlink = yaffs_readlink, .follow_link = yaffs_follow_link, .setattr = yaffs_setattr, @@ -291,7 +271,6 @@ struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,yaffs_Ob /* * Lookup is used to find objects in the fs */ -//#if defined(CONFIG_KERNEL_2_5) /* Added NCB 185-8-2003 */ #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) static struct dentry * yaffs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *n) @@ -509,6 +488,7 @@ static int yaffs_writepage(struct page *page) #endif { struct address_space *mapping = page->mapping; + loff_t offset = (loff_t)page->index << PAGE_CACHE_SHIFT; struct inode *inode; unsigned long end_index; char *buffer; @@ -522,6 +502,14 @@ static int yaffs_writepage(struct page *page) if (!inode) BUG(); + if (offset > inode->i_size) + { + T(YAFFS_TRACE_OS,(KERN_DEBUG"yaffs_writepage at %08x, inode size = %08x!!!\n", (unsigned)(page->index << PAGE_CACHE_SHIFT), (unsigned) inode->i_size)); + T(YAFFS_TRACE_OS,(KERN_DEBUG" -> don't care!!\n")); + unlock_page(page); + return 0; + } + end_index = inode->i_size >> PAGE_CACHE_SHIFT; /* easy case */ @@ -546,9 +534,13 @@ static int yaffs_writepage(struct page *page) obj = yaffs_InodeToObject(inode); yaffs_GrossLock(obj->myDev); + T(YAFFS_TRACE_OS,(KERN_DEBUG"yaffs_writepage at %08x, size %08x\n", (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes)); + T(YAFFS_TRACE_OS,(KERN_DEBUG"writepag0: obj = %05x, ino = %05x\n", (int) obj->variant.fileVariant.fileSize, (int) inode->i_size)); nWritten = yaffs_WriteDataToFile(obj,buffer,page->index << PAGE_CACHE_SHIFT,nBytes,0); + T(YAFFS_TRACE_OS,(KERN_DEBUG"writepag1: obj = %05x, ino = %05x\n", (int) obj->variant.fileVariant.fileSize, (int) inode->i_size)); + yaffs_GrossUnlock(obj->myDev); kunmap(page); @@ -615,7 +607,6 @@ static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj) inode->i_uid = obj->yst_uid; inode->i_gid = obj->yst_gid; inode->i_blksize = inode->i_sb->s_blocksize; -//#if defined(CONFIG_KERNEL_2_5) #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) inode->i_rdev = old_decode_dev(obj->yst_rdev); @@ -702,55 +693,6 @@ struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,yaffs_Ob return inode; } -#if 0 - -// No longer used because we use generic rw */ -static ssize_t yaffs_file_read(struct file *f, char *buf, size_t n, loff_t *pos) -{ - yaffs_Object *obj; - int nRead,ipos; - struct inode *inode; - yaffs_Device *dev; - - T(YAFFS_TRACE_OS,(KERN_DEBUG"yaffs_file_read\n")); - - obj = yaffs_DentryToObject(f->f_dentry); - - dev = obj->myDev; - - yaffs_GrossLock(dev); - - inode = f->f_dentry->d_inode; - - if (*pos < inode->i_size) - { - if (*pos + n > inode->i_size) - { - n = inode->i_size - *pos; - } - } - else - { - n = 0; - } - - nRead = yaffs_ReadDataFromFile(obj,buf,*pos,n); - if(nRead > 0) - { - f->f_pos += nRead; - } - - yaffs_GrossUnlock(dev); - - ipos = *pos; - - T(YAFFS_TRACE_OS,(KERN_DEBUG"yaffs_file_read read %d bytes, %d read at %d\n",n,nRead,ipos)); - return nRead; - -} - -#endif - static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, loff_t *pos) { yaffs_Object *obj; @@ -890,7 +832,6 @@ static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) /* * File creation. Allocate an inode, and we're done.. */ -//#if defined(CONFIG_KERNEL_2_5) #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev) #else @@ -984,7 +925,6 @@ static int yaffs_mkdir(struct inode * dir, struct dentry * dentry, int mode) return retVal; } -//#if defined(CONFIG_KERNEL_2_5) /* Added NCB 185-8-2003 */ #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *n) #else @@ -1155,10 +1095,8 @@ static int yaffs_rename(struct inode * old_dir, struct dentry *old_dentry, struc else { - // Unlink the target if it exists - removed = yaffs_Unlink(yaffs_InodeToObject(new_dir),new_dentry->d_name.name); - - + // Now does unlinking internally using shadowing mechanism + retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir),old_dentry->d_name.name, yaffs_InodeToObject(new_dir),new_dentry->d_name.name); @@ -1211,7 +1149,6 @@ static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) return error; } -//#if defined(CONFIG_KERNEL_2_5) /* Added NCB 185-8-2003 */ #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf) #else @@ -1290,7 +1227,7 @@ static void yaffs_put_super(struct super_block *sb) } -#ifdef CONFIG_YAFFS_MTD_ENABLED +#ifdef CONFIG_YAFFS_YAFFS1 static void yaffs_MTDPutSuper(struct super_block *sb) { @@ -1308,13 +1245,14 @@ static void yaffs_MTDPutSuper(struct super_block *sb) #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; struct dentry * root; yaffs_Device *dev = 0; char devname_buf[BDEVNAME_SIZE+1]; + struct mtd_info *mtd; int err; sb->s_magic = YAFFS_MAGIC; @@ -1331,235 +1269,160 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,int useRam -#ifdef CONFIG_YAFFS_USE_CHUNK_SIZE - sb->s_blocksize = YAFFS_BYTES_PER_CHUNK; - sb->s_blocksize_bits = YAFFS_CHUNK_SIZE_SHIFT; -#else sb->s_blocksize = PAGE_CACHE_SIZE; sb->s_blocksize_bits = PAGE_CACHE_SHIFT; -#endif 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")); #endif + T(YAFFS_TRACE_ALWAYS,("yaffs: Attempting MTD mount on %u.%u, \"%s\"\n", + MAJOR(sb->s_dev),MINOR(sb->s_dev), yaffs_devname(sb, devname_buf))); + + // Check it's an mtd device..... + if(MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) + { + return NULL; // This isn't an mtd device + } - if(useRam) + // Get the device + mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); + if (!mtd) { + T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device #%u doesn't appear to exist\n", MINOR(sb->s_dev))); + return NULL; + } + + // Check it's NAND + if(mtd->type != MTD_NANDFLASH) + { + T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device is not NAND it's type %d\n", mtd->type)); + return NULL; + } -#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) + T(YAFFS_TRACE_OS,(" erase %p\n",mtd->erase)); + T(YAFFS_TRACE_OS,(" read %p\n",mtd->read)); + T(YAFFS_TRACE_OS,(" write %p\n",mtd->write)); + T(YAFFS_TRACE_OS,(" readoob %p\n",mtd->read_oob)); + T(YAFFS_TRACE_OS,(" writeoob %p\n",mtd->write_oob)); + T(YAFFS_TRACE_OS,(" block_isbad %p\n",mtd->block_isbad)); + T(YAFFS_TRACE_OS,(" block_markbad %p\n",mtd->block_markbad)); + T(YAFFS_TRACE_OS,(" oobblock %d\n",mtd->oobblock)); + T(YAFFS_TRACE_OS,(" oobsize %d\n",mtd->oobsize)); + T(YAFFS_TRACE_OS,(" erasesize %d\n",mtd->erasesize)); + T(YAFFS_TRACE_OS,(" size %d\n",mtd->size)); + + if(yaffsVersion == 2) + { + // Check for version 2 style functions + if(!mtd->erase || + !mtd->block_isbad || + !mtd->block_markbad || + !mtd->read || + !mtd->write || + !mtd->write_ecc || + !mtd->read_ecc || + !mtd->read_oob || + !mtd->write_oob ) { - // Deep shit could not allocate device structure - T(YAFFS_TRACE_OS,("yaffs_read_super: Failed trying to allocate yaffs_Device.\n")); + T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device does not support required functions\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 + + if(mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE || + mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) { - dev->writeChunkToNAND = nandemul_WriteChunkToNAND; - dev->readChunkFromNAND = nandemul_ReadChunkFromNAND; - dev->eraseBlockInNAND = nandemul_EraseBlockInNAND; - dev->initialiseNAND = nandemul_InitialiseNAND; - dev->isYaffs2 = 0; - } -#endif - - } + T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device does not support have the right page sizes\n")); + return NULL; + } } else - { -#if defined(CONFIG_YAFFS_MTD_ENABLED) || defined(CONFIG_YAFFS2_MTD_ENABLED) - struct mtd_info *mtd; - - T(YAFFS_TRACE_ALWAYS,("yaffs: Attempting MTD mount on %u.%u, \"%s\"\n", - MAJOR(sb->s_dev),MINOR(sb->s_dev), yaffs_devname(sb, devname_buf))); - - // Check it's an mtd device..... - if(MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) - { - return NULL; // This isn't an mtd device - } - - // Get the device - mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); - if (!mtd) + { + // Check for V1 style functions + if(!mtd->erase || + !mtd->read || + !mtd->write || + !mtd->write_ecc || + !mtd->read_ecc || + !mtd->read_oob || + !mtd->write_oob ) { - T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device #%u doesn't appear to exist\n", MINOR(sb->s_dev))); + T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device does not support required functions\n"));; return NULL; } - - // Check it's NAND - if(mtd->type != MTD_NANDFLASH) + + if(mtd->oobblock != YAFFS_BYTES_PER_CHUNK || + mtd->oobsize != YAFFS_BYTES_PER_SPARE) { - T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device is not NAND it's type %d\n", mtd->type)); + T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device does not support have the right page sizes\n")); return NULL; } + } + - T(YAFFS_TRACE_OS,(" erase %p\n",mtd->erase)); - T(YAFFS_TRACE_OS,(" read %p\n",mtd->read)); - T(YAFFS_TRACE_OS,(" write %p\n",mtd->write)); - T(YAFFS_TRACE_OS,(" readoob %p\n",mtd->read_oob)); - T(YAFFS_TRACE_OS,(" writeoob %p\n",mtd->write_oob)); - T(YAFFS_TRACE_OS,(" block_isbad %p\n",mtd->block_isbad)); - T(YAFFS_TRACE_OS,(" block_markbad %p\n",mtd->block_markbad)); - T(YAFFS_TRACE_OS,(" oobblock %d\n",mtd->oobblock)); - T(YAFFS_TRACE_OS,(" oobsize %d\n",mtd->oobsize)); - T(YAFFS_TRACE_OS,(" erasesize %d\n",mtd->erasesize)); - T(YAFFS_TRACE_OS,(" size %d\n",mtd->size)); - - if(yaffsVersion == 2) - { - // Check for version 2 style functions - if(!mtd->erase || - !mtd->block_isbad || - !mtd->block_markbad || - !mtd->read || - !mtd->write || -#ifndef CONFIG_YAFFS_USE_OLD_MTD - !mtd->write_ecc || - !mtd->read_ecc || -#endif - !mtd->read_oob || - !mtd->write_oob ) - { - T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device does not support required functions\n"));; - return NULL; - } - - if(mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE || - mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) - { - T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device does not support have the right page sizes\n")); - return NULL; - } } - else - { - // Check for V1 style functions - if(!mtd->erase || - !mtd->read || - !mtd->write || -#ifndef CONFIG_YAFFS_USE_OLD_MTD - !mtd->write_ecc || - !mtd->read_ecc || -#endif - !mtd->read_oob || - !mtd->write_oob ) - { - T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device does not support required functions\n"));; - return NULL; - } - - if(mtd->oobblock != YAFFS_BYTES_PER_CHUNK || - mtd->oobsize != YAFFS_BYTES_PER_SPARE) - { - T(YAFFS_TRACE_ALWAYS,("yaffs: MTD device does not support have the right page sizes\n")); - return NULL; - } - } - - - // OK, so if we got here, we have an MTD that's NAND and looks - // like it has the right capabilities - // Set the yaffs_Device up for mtd + // OK, so if we got here, we have an MTD that's NAND and looks + // like it has the right capabilities + // Set the yaffs_Device up for mtd -//#if defined(CONFIG_KERNEL_2_5) #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) - sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device),GFP_KERNEL); + sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device),GFP_KERNEL); #else - sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device),GFP_KERNEL); + sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device),GFP_KERNEL); #endif - if(!dev) - { - // Deep shit could not allocate device structure - T(YAFFS_TRACE_ALWAYS,("yaffs_read_super: Failed trying to allocate yaffs_Device. \n")); - return NULL; - } + if(!dev) + { + // Deep shit could not allocate device structure + T(YAFFS_TRACE_ALWAYS,("yaffs_read_super: Failed trying to allocate yaffs_Device. \n")); + return NULL; + } - memset(dev,0,sizeof(yaffs_Device)); - dev->genericDevice = mtd; - dev->name = mtd->name; + memset(dev,0,sizeof(yaffs_Device)); + dev->genericDevice = mtd; + dev->name = mtd->name; - // Set up the memory size parameters.... - - nBlocks = mtd->size / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK); + // Set up the memory size parameters.... + + nBlocks = mtd->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; + dev->nShortOpCaches = 10; // Enable short op caching + + + // ... and the functions. + if(yaffsVersion == 2) + { + dev->writeChunkWithTagsToNAND = nandmtd2_WriteChunkWithTagsToNAND; + dev->readChunkWithTagsFromNAND = nandmtd2_ReadChunkWithTagsFromNAND; + dev->markNANDBlockBad = nandmtd2_MarkNANDBlockBad; + dev->queryNANDBlock = nandmtd2_QueryNANDBlock; + dev->spareBuffer = YMALLOC(mtd->oobsize); + dev->isYaffs2 = 1; + dev->nBytesPerChunk = mtd->oobblock; + dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock; + nBlocks = mtd->size / mtd->erasesize; dev->startBlock = 0; dev->endBlock = nBlocks - 1; - dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK; - dev->nBytesPerChunk = YAFFS_BYTES_PER_CHUNK; - dev->nReservedBlocks = 5; - dev->nShortOpCaches = 10; // Enable short op caching - - - // ... and the functions. - if(yaffsVersion == 2) - { - dev->writeChunkWithTagsToNAND = nandmtd2_WriteChunkWithTagsToNAND; - dev->readChunkWithTagsFromNAND = nandmtd2_ReadChunkWithTagsFromNAND; - dev->markNANDBlockBad = nandmtd2_MarkNANDBlockBad; - dev->queryNANDBlock = nandmtd2_QueryNANDBlock; - dev->spareBuffer = YMALLOC(mtd->oobsize); - dev->isYaffs2 = 1; - dev->nBytesPerChunk = mtd->oobblock; - dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock; - nBlocks = mtd->size / mtd->erasesize; - dev->startBlock = 0; - dev->endBlock = nBlocks - 1; - } - else - { - dev->writeChunkToNAND = nandmtd_WriteChunkToNAND; - dev->readChunkFromNAND = nandmtd_ReadChunkFromNAND; - dev->isYaffs2 = 0; - } - // ... and common functions - dev->eraseBlockInNAND = nandmtd_EraseBlockInNAND; - dev->initialiseNAND = nandmtd_InitialiseNAND; - - dev->putSuperFunc = yaffs_MTDPutSuper; - -#ifdef CONFIG_YAFFS_USE_NANDECC - dev->useNANDECC = 1; -#endif -#endif } + else + { + dev->writeChunkToNAND = nandmtd_WriteChunkToNAND; + dev->readChunkFromNAND = nandmtd_ReadChunkFromNAND; + dev->isYaffs2 = 0; + } + // ... and common functions + dev->eraseBlockInNAND = nandmtd_EraseBlockInNAND; + dev->initialiseNAND = nandmtd_InitialiseNAND; + + dev->putSuperFunc = yaffs_MTDPutSuper; + +#ifndef CONFIG_YAFFS_DOES_ECC + dev->useNANDECC = 1; +#endif /* we assume this is protected by lock_kernel() in mount/umount */ list_add_tail(&dev->devList, &yaffs_dev_list); @@ -1605,12 +1468,12 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,int useRam -#ifdef CONFIG_YAFFS_MTD_ENABLED +#ifdef CONFIG_YAFFS_YAFFS1 #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) @@ -1619,33 +1482,30 @@ static struct super_block *yaffs_read_super(struct file_system_type * fs, int fl return get_sb_bdev(fs, flags, dev_name, data, yaffs_internal_read_super_mtd); } -/* changes NCB 2.5.70 */ -//static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super, FS_REQUIRES_DEV); static struct file_system_type yaffs_fs_type = { .owner = THIS_MODULE, .name = "yaffs", .get_sb = yaffs_read_super, .kill_sb = kill_block_super, -// .kill_sb = kill_litter_super, .fs_flags = FS_REQUIRES_DEV, }; #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); #endif -#endif // CONFIG_YAFFS_MTD_ENABLED +#endif // CONFIG_YAFFS_YAFFS1 -#ifdef CONFIG_YAFFS2_MTD_ENABLED +#ifdef CONFIG_YAFFS_YAFFS2 #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) @@ -1654,98 +1514,28 @@ static struct super_block *yaffs2_read_super(struct file_system_type * fs, int f return get_sb_bdev(fs, flags, dev_name, data, yaffs2_internal_read_super_mtd); } -/* changes NCB 2.5.70 */ -//static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super, FS_REQUIRES_DEV); static struct file_system_type yaffs2_fs_type = { .owner = THIS_MODULE, .name = "yaffs2", .get_sb = yaffs2_read_super, .kill_sb = kill_block_super, -// .kill_sb = kill_litter_super, .fs_flags = FS_REQUIRES_DEV, }; #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 -#endif // CONFIG_YAFFS2_MTD_ENABLED - - -#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); -} - +#endif // CONFIG_YAFFS_YAFFS2 -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; -static struct proc_dir_entry *my_proc_ram_write_entry; static char * yaffs_dump_dev(char *buf,yaffs_Device *dev) { @@ -1828,22 +1618,6 @@ static int yaffs_proc_read( return buf-page < count ? buf-page : count; } -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; -} - - - // Stuff to handle installation of file systems struct file_system_to_install { @@ -1853,16 +1627,10 @@ 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_MTD_ENABLED +#ifdef CONFIG_YAFFS_YAFFS1 { &yaffs_fs_type,0}, #endif -#ifdef CONFIG_YAFFS2_MTD_ENABLED +#ifdef CONFIG_YAFFS_YAFFS2 { &yaffs2_fs_type,0}, #endif { NULL,0}