X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_fs.c;h=9c11b5d7def7833eee16292097fbc9c135bd5dc5;hp=eceb34f3c0e23bd1f771d690255bdae2801497a2;hb=bc23b8617d64bfc9647c2420993f36b724374b30;hpb=a4d9ea92251deb3c1389e3e3443faf4341f817db diff --git a/yaffs_fs.c b/yaffs_fs.c index eceb34f..9c11b5d 100644 --- a/yaffs_fs.c +++ b/yaffs_fs.c @@ -32,7 +32,7 @@ */ const char *yaffs_fs_c_version = - "$Id: yaffs_fs.c,v 1.65 2007-12-13 15:35:17 wookey Exp $"; + "$Id: yaffs_fs.c,v 1.71 2009-01-22 00:45:54 charles Exp $"; extern const char *yaffs_guts_c_version; #include @@ -43,7 +43,6 @@ extern const char *yaffs_guts_c_version; #include #include #include -#include #include #include #include @@ -53,6 +52,8 @@ extern const char *yaffs_guts_c_version; #include #include +#include "asm/div64.h" + #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) #include /* Added NCB 15-8-2003 */ @@ -76,6 +77,12 @@ extern const char *yaffs_guts_c_version; #endif +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)) +#define YPROC_ROOT &proc_root +#else +#define YPROC_ROOT NULL +#endif + #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) #define WRITE_SIZE_STR "writesize" #define WRITE_SIZE(mtd) (mtd)->writesize @@ -84,6 +91,13 @@ extern const char *yaffs_guts_c_version; #define WRITE_SIZE(mtd) (mtd)->oobblock #endif +#if(LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27)) +#define YAFFS_USE_WRITE_BEGIN_END 1 +#else +#define YAFFS_USE_WRITE_BEGIN_END 0 +#endif + + #include #include "yportenv.h" @@ -96,14 +110,30 @@ extern const char *yaffs_guts_c_version; unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS; unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; +unsigned int yaffs_auto_checkpoint = 1; /* Module Parameters */ #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) module_param(yaffs_traceMask,uint,0644); module_param(yaffs_wr_attempts,uint,0644); +module_param(yaffs_auto_checkpoint,uint,0644); #else MODULE_PARM(yaffs_traceMask,"i"); MODULE_PARM(yaffs_wr_attempts,"i"); +MODULE_PARM(yaffs_auto_checkpoint,"i"); +#endif + +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)) +/* use iget and read_inode */ +#define Y_IGET(sb,inum) iget((sb),(inum)) +static void yaffs_read_inode(struct inode *inode); + +#else +/* Call local equivalent */ +#define YAFFS_USE_OWN_IGET +#define Y_IGET(sb,inum) yaffs_iget((sb),(inum)) + +static struct inode * yaffs_iget(struct super_block *sb, unsigned long ino); #endif /*#define T(x) printk x */ @@ -127,6 +157,8 @@ static void yaffs_put_super(struct super_block *sb); static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, loff_t * pos); +static ssize_t yaffs_hold_space(struct file *f); +static void yaffs_release_space(struct file *f); #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) static int yaffs_file_flush(struct file *file, fl_owner_t id); @@ -181,9 +213,11 @@ static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf); #else static int yaffs_statfs(struct super_block *sb, struct statfs *buf); #endif -static void yaffs_read_inode(struct inode *inode); +#ifdef YAFFS_HAS_PUT_INODE static void yaffs_put_inode(struct inode *inode); +#endif + static void yaffs_delete_inode(struct inode *); static void yaffs_clear_inode(struct inode *); @@ -193,10 +227,22 @@ static int yaffs_writepage(struct page *page, struct writeback_control *wbc); #else static int yaffs_writepage(struct page *page); #endif + + +#if (YAFFS_USE_WRITE_BEGIN_END != 0) +static int yaffs_write_begin(struct file *filp, struct address_space *mapping, + loff_t pos, unsigned len, unsigned flags, + struct page **pagep, void **fsdata); +static int yaffs_write_end(struct file *filp, struct address_space *mapping, + loff_t pos, unsigned len, unsigned copied, + struct page *pg, void *fsdadata); +#else static int yaffs_prepare_write(struct file *f, struct page *pg, unsigned offset, unsigned to); static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, unsigned to); + +#endif static int yaffs_readlink(struct dentry *dentry, char __user * buffer, int buflen); @@ -209,8 +255,13 @@ static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); static struct address_space_operations yaffs_file_address_operations = { .readpage = yaffs_readpage, .writepage = yaffs_writepage, +#if (YAFFS_USE_WRITE_BEGIN_END > 0) + .write_begin = yaffs_write_begin, + .write_end = yaffs_write_end, +#else .prepare_write = yaffs_prepare_write, .commit_write = yaffs_commit_write, +#endif }; #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22)) @@ -224,6 +275,7 @@ static struct file_operations yaffs_file_operations = { .fsync = yaffs_sync_object, .splice_read = generic_file_splice_read, .splice_write = generic_file_splice_write, + .llseek = generic_file_llseek, }; #elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)) @@ -284,8 +336,13 @@ static struct file_operations yaffs_dir_operations = { static struct super_operations yaffs_super_ops = { .statfs = yaffs_statfs, + +#ifndef YAFFS_USE_OWN_IGET .read_inode = yaffs_read_inode, +#endif +#ifdef YAFFS_HAS_PUT_INODE .put_inode = yaffs_put_inode, +#endif .put_super = yaffs_put_super, .delete_inode = yaffs_delete_inode, .clear_inode = yaffs_clear_inode, @@ -429,6 +486,9 @@ static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry) } + +#ifdef YAFFS_HAS_PUT_INODE + /* For now put inode is just for debugging * Put inode is called when the inode **structure** is put. */ @@ -439,6 +499,7 @@ static void yaffs_put_inode(struct inode *inode) atomic_read(&inode->i_count))); } +#endif /* clear is called to tell the fs to release any per-inode data it holds */ static void yaffs_clear_inode(struct inode *inode) @@ -667,6 +728,64 @@ static int yaffs_writepage(struct page *page) return (nWritten == nBytes) ? 0 : -ENOSPC; } + +#if (YAFFS_USE_WRITE_BEGIN_END > 0) +static int yaffs_write_begin(struct file *filp, struct address_space *mapping, + loff_t pos, unsigned len, unsigned flags, + struct page **pagep, void **fsdata) + +{ + struct page *pg = NULL; + pgoff_t index = pos >> PAGE_CACHE_SHIFT; + uint32_t offset = pos & (PAGE_CACHE_SIZE - 1); + uint32_t to = offset + len; + + int ret = 0; + int space_held = 0; + + T(YAFFS_TRACE_OS, (KERN_DEBUG "start yaffs_write_begin\n")); + /* Get a page */ + pg = __grab_cache_page(mapping,index); + *pagep = pg; + if(!pg){ + ret = -ENOMEM; + goto out; + } + /* Get fs space */ + space_held = yaffs_hold_space(filp); + + if(!space_held){ + ret = -ENOSPC; + goto out; + } + + /* Update page if required */ + + if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) + ret = yaffs_readpage_nolock(filp, pg); + + if(ret) + goto out; + + /* Happy path return */ + T(YAFFS_TRACE_OS, (KERN_DEBUG "end yaffs_write_begin - ok\n")); + + return 0; + +out: + T(YAFFS_TRACE_OS, (KERN_DEBUG "end yaffs_write_begin fail returning %d\n",ret)); + if(space_held){ + yaffs_release_space(filp); + } + if(pg) { + unlock_page(pg); + page_cache_release(pg); + } + return ret; +} + +#else + static int yaffs_prepare_write(struct file *f, struct page *pg, unsigned offset, unsigned to) { @@ -674,22 +793,69 @@ static int yaffs_prepare_write(struct file *f, struct page *pg, T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_prepair_write\n")); if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) return yaffs_readpage_nolock(f, pg); - return 0; } +#endif + +#if (YAFFS_USE_WRITE_BEGIN_END > 0) +static int yaffs_write_end(struct file *filp, struct address_space *mapping, + loff_t pos, unsigned len, unsigned copied, + struct page *pg, void *fsdadata) +{ + int ret = 0; + void *addr, *kva; + pgoff_t index = pos >> PAGE_CACHE_SHIFT; + uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE -1); + + + + kva=kmap(pg); + addr = kva + offset_into_page; + + T(YAFFS_TRACE_OS, + (KERN_DEBUG "yaffs_write_end addr %x pos %x nBytes %d\n", (unsigned) addr, + (int)pos, copied)); + + ret = yaffs_file_write(filp, addr, copied, &pos); + + if (ret != copied) { + T(YAFFS_TRACE_OS, + (KERN_DEBUG + "yaffs_write_end not same size ret %d copied %d\n", + ret, copied )); + SetPageError(pg); + ClearPageUptodate(pg); + } else { + SetPageUptodate(pg); + } + + kunmap(pg); + + yaffs_release_space(filp); + unlock_page(pg); + page_cache_release(pg); + return ret; +} +#else static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, unsigned to) { - void *addr = page_address(pg) + offset; + void *addr, *kva; + loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset; int nBytes = to - offset; int nWritten; unsigned spos = pos; - unsigned saddr = (unsigned)addr; + unsigned saddr; + + kva=kmap(pg); + addr = kva + offset; + + saddr = (unsigned) addr; T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_commit_write addr %x pos %x nBytes %d\n", saddr, @@ -708,6 +874,8 @@ static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, SetPageUptodate(pg); } + kunmap(pg); + T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_commit_write returning %d\n", nWritten == nBytes ? 0 : nWritten)); @@ -715,6 +883,8 @@ static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, return nWritten == nBytes ? 0 : nWritten; } +#endif + static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object * obj) { @@ -753,6 +923,8 @@ static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object * obj) break; } + inode->i_flags |= S_NOATIME; + inode->i_ino = obj->objectId; inode->i_mode = obj->yst_mode; inode->i_uid = obj->yst_uid; @@ -844,7 +1016,9 @@ struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_get_inode for object %d\n", obj->objectId)); - inode = iget(sb, obj->objectId); + inode = Y_IGET(sb, obj->objectId); + if(IS_ERR(inode)) + return NULL; /* NB Side effect: iget calls back to yaffs_read_inode(). */ /* iget also increments the inode's i_count */ @@ -910,13 +1084,55 @@ static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, return nWritten == 0 ? -ENOSPC : nWritten; } +/* Space holding and freeing is done to ensure we have space available for write_begin/end */ +/* For now we just assume few parallel writes and check against a small number. */ +/* Todo: need to do this with a counter to handle parallel reads better */ + +static ssize_t yaffs_hold_space(struct file *f) +{ + yaffs_Object *obj; + yaffs_Device *dev; + + int nFreeChunks; + + + obj = yaffs_DentryToObject(f->f_dentry); + + dev = obj->myDev; + + yaffs_GrossLock(dev); + + nFreeChunks = yaffs_GetNumberOfFreeChunks(dev); + + yaffs_GrossUnlock(dev); + + return (nFreeChunks > 20) ? 1 : 0; +} + +static void yaffs_release_space(struct file *f) +{ + yaffs_Object *obj; + yaffs_Device *dev; + + + obj = yaffs_DentryToObject(f->f_dentry); + + dev = obj->myDev; + + yaffs_GrossLock(dev); + + + yaffs_GrossUnlock(dev); + +} + static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) { yaffs_Object *obj; yaffs_Device *dev; struct inode *inode = f->f_dentry->d_inode; unsigned long offset, curoffs; - struct list_head *i; + struct ylist_head *i; yaffs_Object *l; char name[YAFFS_MAX_NAME_LENGTH + 1]; @@ -965,10 +1181,10 @@ static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) f->f_version = inode->i_version; } - list_for_each(i, &obj->variant.directoryVariant.children) { + ylist_for_each(i, &obj->variant.directoryVariant.children) { curoffs++; if (curoffs >= offset) { - l = list_entry(i, yaffs_Object, siblings); + l = ylist_entry(i, yaffs_Object, siblings); yaffs_GetObjectName(l, name, YAFFS_MAX_NAME_LENGTH + 1); @@ -1269,7 +1485,7 @@ static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && - !list_empty(&target->variant.directoryVariant.children)) { + !ylist_empty(&target->variant.directoryVariant.children)) { T(YAFFS_TRACE_OS, (KERN_DEBUG "target is non-empty dir\n")); @@ -1350,25 +1566,47 @@ static int yaffs_statfs(struct super_block *sb, struct statfs *buf) buf->f_type = YAFFS_MAGIC; buf->f_bsize = sb->s_blocksize; buf->f_namelen = 255; - if (sb->s_blocksize > dev->nDataBytesPerChunk) { - + + if(dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)){ + /* Do this if chunk size is not a power of 2 */ + + uint64_t bytesInDev; + uint64_t bytesFree; + + bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock +1))) * + ((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk)); + + do_div(bytesInDev,sb->s_blocksize); /* bytesInDev becomes the number of blocks */ + buf->f_blocks = bytesInDev; + + bytesFree = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) * + ((uint64_t)(dev->nDataBytesPerChunk)); + + do_div(bytesFree,sb->s_blocksize); + + buf->f_bfree = bytesFree; + + } else if (sb->s_blocksize > dev->nDataBytesPerChunk) { + buf->f_blocks = - (dev->endBlock - dev->startBlock + - 1) * dev->nChunksPerBlock / (sb->s_blocksize / - dev->nDataBytesPerChunk); - buf->f_bfree = - yaffs_GetNumberOfFreeChunks(dev) / (sb->s_blocksize / - dev->nDataBytesPerChunk); + (dev->endBlock - dev->startBlock + 1) * + dev->nChunksPerBlock / + (sb->s_blocksize / dev->nDataBytesPerChunk); + buf->f_bfree = + yaffs_GetNumberOfFreeChunks(dev) / + (sb->s_blocksize / dev->nDataBytesPerChunk); } else { - - buf->f_blocks = - (dev->endBlock - dev->startBlock + - 1) * dev->nChunksPerBlock * (dev->nDataBytesPerChunk / - sb->s_blocksize); - buf->f_bfree = - yaffs_GetNumberOfFreeChunks(dev) * (dev->nDataBytesPerChunk / - sb->s_blocksize); + buf->f_blocks = + (dev->endBlock - dev->startBlock + 1) * + dev->nChunksPerBlock * + (dev->nDataBytesPerChunk / sb->s_blocksize); + + buf->f_bfree = + yaffs_GetNumberOfFreeChunks(dev) * + (dev->nDataBytesPerChunk / sb->s_blocksize); } + + buf->f_files = 0; buf->f_ffree = 0; buf->f_bavail = buf->f_bfree; @@ -1378,7 +1616,6 @@ static int yaffs_statfs(struct super_block *sb, struct statfs *buf) } -/** static int yaffs_do_sync_fs(struct super_block *sb) { @@ -1388,8 +1625,10 @@ static int yaffs_do_sync_fs(struct super_block *sb) if(sb->s_dirt) { yaffs_GrossLock(dev); - if(dev) + if(dev){ + yaffs_FlushEntireDeviceCache(dev); yaffs_CheckpointSave(dev); + } yaffs_GrossUnlock(dev); @@ -1397,7 +1636,7 @@ static int yaffs_do_sync_fs(struct super_block *sb) } return 0; } -**/ + #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) static void yaffs_write_super(struct super_block *sb) @@ -1407,8 +1646,10 @@ static int yaffs_write_super(struct super_block *sb) { T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_write_super\n")); + if (yaffs_auto_checkpoint >= 2) + yaffs_do_sync_fs(sb); #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) - return 0; /* yaffs_do_sync_fs(sb);*/ + return 0; #endif } @@ -1422,10 +1663,48 @@ static int yaffs_sync_fs(struct super_block *sb) T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n")); - return 0; /* yaffs_do_sync_fs(sb);*/ + if (yaffs_auto_checkpoint >= 1) + yaffs_do_sync_fs(sb); + + return 0; + +} + +#ifdef YAFFS_USE_OWN_IGET + +static struct inode * yaffs_iget(struct super_block *sb, unsigned long ino) +{ + struct inode *inode; + yaffs_Object *obj; + yaffs_Device *dev = yaffs_SuperToDevice(sb); + + T(YAFFS_TRACE_OS, + (KERN_DEBUG "yaffs_iget for %lu\n", ino)); + + inode = iget_locked(sb, ino); + if (!inode) + return ERR_PTR(-ENOMEM); + if (!(inode->i_state & I_NEW)) + return inode; + + /* NB This is called as a side effect of other functions, but + * we had to release the lock to prevent deadlocks, so + * need to lock again. + */ + + yaffs_GrossLock(dev); + + obj = yaffs_FindObjectByNumber(dev, inode->i_ino); + + yaffs_FillInodeFromObject(inode, obj); + yaffs_GrossUnlock(dev); + + unlock_new_inode(inode); + return inode; } +#else static void yaffs_read_inode(struct inode *inode) { @@ -1449,7 +1728,9 @@ static void yaffs_read_inode(struct inode *inode) yaffs_GrossUnlock(dev); } -static LIST_HEAD(yaffs_dev_list); +#endif + +static YLIST_HEAD(yaffs_dev_list); #if 0 // not used static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data) @@ -1503,7 +1784,7 @@ static void yaffs_put_super(struct super_block *sb) yaffs_GrossUnlock(dev); /* we assume this is protected by lock_kernel() in mount/umount */ - list_del(&dev->devList); + ylist_del(&dev->devList); if(dev->spareBuffer){ YFREE(dev->spareBuffer); @@ -1532,8 +1813,8 @@ static void yaffs_MarkSuperBlockDirty(void *vsb) struct super_block *sb = (struct super_block *)vsb; T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_MarkSuperBlockDirty() sb = %p\n",sb)); -// if(sb) -// sb->s_dirt = 1; + if(sb) + sb->s_dirt = 1; } typedef struct { @@ -1602,6 +1883,7 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion, sb->s_magic = YAFFS_MAGIC; sb->s_op = &yaffs_super_ops; + sb->s_flags |= MS_NOATIME; if (!sb) printk(KERN_INFO "yaffs: sb is NULL\n"); @@ -1678,22 +1960,15 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion, #ifdef CONFIG_YAFFS_AUTO_YAFFS2 if (yaffsVersion == 1 && -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - mtd->writesize >= 2048) { -#else - mtd->oobblock >= 2048) { -#endif + WRITE_SIZE(mtd) >= 2048) { T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs2\n")); yaffsVersion = 2; } /* Added NCB 26/5/2006 for completeness */ - if (yaffsVersion == 2 && -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - mtd->writesize == 512) { -#else - mtd->oobblock == 512) { -#endif + if (yaffsVersion == 2 && + !options.inband_tags && + WRITE_SIZE(mtd) == 512){ T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs1\n")); yaffsVersion = 1; } @@ -1719,12 +1994,9 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion, return NULL; } -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - if (mtd->writesize < YAFFS_MIN_YAFFS2_CHUNK_SIZE || -#else - if (mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE || -#endif - mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) { + if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE || + mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) && + !options.inband_tags) { T(YAFFS_TRACE_ALWAYS, ("yaffs: MTD device does not have the " "right page sizes\n")); @@ -1784,9 +2056,10 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion, dev->startBlock = 0; dev->endBlock = nBlocks - 1; dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK; - dev->nDataBytesPerChunk = YAFFS_BYTES_PER_CHUNK; + dev->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK; dev->nReservedBlocks = 5; dev->nShortOpCaches = (options.no_cache) ? 0 : 10; + dev->inbandTags = options.inband_tags; /* ... and the functions. */ if (yaffsVersion == 2) { @@ -1799,10 +2072,10 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion, dev->spareBuffer = YMALLOC(mtd->oobsize); dev->isYaffs2 = 1; #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - dev->nDataBytesPerChunk = mtd->writesize; + dev->totalBytesPerChunk = mtd->writesize; dev->nChunksPerBlock = mtd->erasesize / mtd->writesize; #else - dev->nDataBytesPerChunk = mtd->oobblock; + dev->totalBytesPerChunk = mtd->oobblock; dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock; #endif nBlocks = mtd->size / mtd->erasesize; @@ -1846,7 +2119,7 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion, dev->skipCheckpointWrite = options.skip_checkpoint_write; /* we assume this is protected by lock_kernel() in mount/umount */ - list_add_tail(&dev->devList, &yaffs_dev_list); + ylist_add_tail(&dev->devList, &yaffs_dev_list); init_MUTEX(&dev->grossLock); @@ -1883,6 +2156,9 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion, return NULL; } sb->s_root = root; + sb->s_dirt = !dev->isCheckpointed; + T(YAFFS_TRACE_ALWAYS, + ("yaffs_read_super: isCheckpointed %d\n", dev->isCheckpointed)); T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n")); return sb; @@ -1989,6 +2265,7 @@ static char *yaffs_dump_dev(char *buf, yaffs_Device * dev) { buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock); buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock); + buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->totalBytesPerChunk); buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk); buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits); buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize); @@ -2004,10 +2281,8 @@ static char *yaffs_dump_dev(char *buf, yaffs_Device * dev) buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads); buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures); buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies); - buf += - sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections); - buf += - sprintf(buf, "passiveGCs......... %d\n", + buf += sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections); + buf += sprintf(buf, "passiveGCs......... %d\n", dev->passiveGarbageCollections); buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites); buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches); @@ -2023,6 +2298,7 @@ static char *yaffs_dump_dev(char *buf, yaffs_Device * dev) sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions); buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC); buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2); + buf += sprintf(buf, "inbandTags......... %d\n", dev->inbandTags); return buf; } @@ -2031,7 +2307,7 @@ static int yaffs_proc_read(char *page, char **start, off_t offset, int count, int *eof, void *data) { - struct list_head *item; + struct ylist_head *item; char *buf = page; int step = offset; int n = 0; @@ -2055,8 +2331,8 @@ static int yaffs_proc_read(char *page, lock_kernel(); /* Locate and print the Nth entry. Order N-squared but N is small. */ - list_for_each(item, &yaffs_dev_list) { - yaffs_Device *dev = list_entry(item, yaffs_Device, devList); + ylist_for_each(item, &yaffs_dev_list) { + yaffs_Device *dev = ylist_entry(item, yaffs_Device, devList); if (n < step) { n++; continue; @@ -2229,7 +2505,7 @@ static int __init init_yaffs_fs(void) /* Install the proc_fs entry */ my_proc_entry = create_proc_entry("yaffs", S_IRUGO | S_IFREG, - &proc_root); + YPROC_ROOT); if (my_proc_entry) { my_proc_entry->write_proc = yaffs_proc_write; @@ -2275,7 +2551,7 @@ static void __exit exit_yaffs_fs(void) T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__ " removing. \n")); - remove_proc_entry("yaffs", &proc_root); + remove_proc_entry("yaffs", YPROC_ROOT); fsinst = fs_to_install;