X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_guts.h;h=307eba28676f5c2360668c64c2477c8804624edc;hp=a2244d968ef653192b9db3a72d1b2f76f45a03cf;hb=fe192b14d52d6c7d4722402686dcb553153916c3;hpb=9b9fd2ac90990fed4990feec36ab1ec55fc78926 diff --git a/yaffs_guts.h b/yaffs_guts.h index a2244d9..307eba2 100644 --- a/yaffs_guts.h +++ b/yaffs_guts.h @@ -17,8 +17,6 @@ #define __YAFFS_GUTS_H__ #include "yportenv.h" -#include "devextras.h" -#include "yaffs_list.h" #define YAFFS_OK 1 #define YAFFS_FAIL 0 @@ -53,14 +51,12 @@ #define YAFFS_MAX_CHUNK_ID 0x000FFFFF - #define YAFFS_ALLOCATION_NOBJECTS 100 #define YAFFS_ALLOCATION_NTNODES 100 #define YAFFS_ALLOCATION_NLINKS 100 #define YAFFS_NOBJECT_BUCKETS 256 - #define YAFFS_OBJECT_SPACE 0x40000 #define YAFFS_MAX_OBJECT_ID (YAFFS_OBJECT_SPACE -1) @@ -87,7 +83,6 @@ #define YAFFS_OBJECTID_CHECKPOINT_DATA 0x20 #define YAFFS_SEQUENCE_CHECKPOINT_DATA 0x21 - #define YAFFS_MAX_SHORT_OP_CACHES 20 #define YAFFS_N_TEMP_BUFFERS 6 @@ -112,17 +107,15 @@ #define YAFFS_SEQUENCE_BAD_BLOCK 0xFFFF0000 /* ChunkCache is used for short read/write operations.*/ -typedef struct { - struct yaffs_ObjectStruct *object; - int chunkId; - int lastUse; +struct yaffs_cache { + struct yaffs_obj *object; + int chunk_id; + int last_use; int dirty; - int nBytes; /* Only valid if the cache is dirty */ + int n_bytes; /* Only valid if the cache is dirty */ int locked; /* Can't push out or flush while locked. */ - __u8 *data; -} yaffs_ChunkCache; - - + u8 *data; +}; /* Tags structures in RAM * NB This uses bitfield. Bitfields should not straddle a u32 boundary otherwise @@ -130,112 +123,112 @@ typedef struct { */ #ifndef CONFIG_YAFFS_NO_YAFFS1 -typedef struct { - unsigned chunkId:20; - unsigned serialNumber:2; - unsigned byteCountLSB:10; - unsigned objectId:18; +struct yaffs_tags { + unsigned chunk_id:20; + unsigned serial_number:2; + unsigned n_bytes_lsb:10; + unsigned obj_id:18; unsigned ecc:12; - unsigned byteCountMSB:2; -} yaffs_Tags; + unsigned n_bytes_msb:2; +}; -typedef union { - yaffs_Tags asTags; - __u8 asBytes[8]; -} yaffs_TagsUnion; +union yaffs_tags_union { + struct yaffs_tags as_tags; + u8 as_bytes[8]; +}; #endif /* Stuff used for extended tags in YAFFS2 */ -typedef enum { +enum yaffs_ecc_result { YAFFS_ECC_RESULT_UNKNOWN, YAFFS_ECC_RESULT_NO_ERROR, YAFFS_ECC_RESULT_FIXED, YAFFS_ECC_RESULT_UNFIXED -} yaffs_ECCResult; +}; -typedef enum { +enum yaffs_obj_type { YAFFS_OBJECT_TYPE_UNKNOWN, YAFFS_OBJECT_TYPE_FILE, YAFFS_OBJECT_TYPE_SYMLINK, YAFFS_OBJECT_TYPE_DIRECTORY, YAFFS_OBJECT_TYPE_HARDLINK, YAFFS_OBJECT_TYPE_SPECIAL -} yaffs_ObjectType; +}; #define YAFFS_OBJECT_TYPE_MAX YAFFS_OBJECT_TYPE_SPECIAL -typedef struct { +struct yaffs_ext_tags { - unsigned validMarker0; - unsigned chunkUsed; /* Status of the chunk: used or unused */ - unsigned objectId; /* If 0 then this is not part of an object (unused) */ - unsigned chunkId; /* If 0 then this is a header, else a data chunk */ - unsigned byteCount; /* Only valid for data chunks */ + unsigned validity0; + unsigned chunk_used; /* Status of the chunk: used or unused */ + unsigned obj_id; /* If 0 then this is not part of an object (unused) */ + unsigned chunk_id; /* If 0 then this is a header, else a data chunk */ + unsigned n_bytes; /* Only valid for data chunks */ /* The following stuff only has meaning when we read */ - yaffs_ECCResult eccResult; - unsigned blockBad; + enum yaffs_ecc_result ecc_result; + unsigned block_bad; /* YAFFS 1 stuff */ - unsigned chunkDeleted; /* The chunk is marked deleted */ - unsigned serialNumber; /* Yaffs1 2-bit serial number */ + unsigned is_deleted; /* The chunk is marked deleted */ + unsigned serial_number; /* Yaffs1 2-bit serial number */ /* YAFFS2 stuff */ - unsigned sequenceNumber; /* The sequence number of this block */ + unsigned seq_number; /* The sequence number of this block */ /* Extra info if this is an object header (YAFFS2 only) */ - unsigned extraHeaderInfoAvailable; /* There is extra info available if this is not zero */ - unsigned extraParentObjectId; /* The parent object */ - unsigned extraIsShrinkHeader; /* Is it a shrink header? */ - unsigned extraShadows; /* Does this shadow another object? */ + unsigned extra_available; /* There is extra info available if this is not zero */ + unsigned extra_parent_id; /* The parent object */ + unsigned extra_is_shrink; /* Is it a shrink header? */ + unsigned extra_shadows; /* Does this shadow another object? */ - yaffs_ObjectType extraObjectType; /* What object type? */ + enum yaffs_obj_type extra_obj_type; /* What object type? */ - unsigned extraFileLength; /* Length if it is a file */ - unsigned extraEquivalentObjectId; /* Equivalent object Id if it is a hard link */ + unsigned extra_length; /* Length if it is a file */ + unsigned extra_equiv_id; /* Equivalent object Id if it is a hard link */ - unsigned validMarker1; + unsigned validity1; -} yaffs_ExtendedTags; +}; /* Spare structure for YAFFS1 */ -typedef struct { - __u8 tagByte0; - __u8 tagByte1; - __u8 tagByte2; - __u8 tagByte3; - __u8 pageStatus; /* set to 0 to delete the chunk */ - __u8 blockStatus; - __u8 tagByte4; - __u8 tagByte5; - __u8 ecc1[3]; - __u8 tagByte6; - __u8 tagByte7; - __u8 ecc2[3]; -} yaffs_Spare; +struct yaffs_spare { + u8 tb0; + u8 tb1; + u8 tb2; + u8 tb3; + u8 page_status; /* set to 0 to delete the chunk */ + u8 block_status; + u8 tb4; + u8 tb5; + u8 ecc1[3]; + u8 tb6; + u8 tb7; + u8 ecc2[3]; +}; /*Special structure for passing through to mtd */ -struct yaffs_NANDSpare { - yaffs_Spare spare; +struct yaffs_nand_spare { + struct yaffs_spare spare; int eccres1; int eccres2; }; /* Block data in RAM */ -typedef enum { +enum yaffs_block_state { YAFFS_BLOCK_STATE_UNKNOWN = 0, YAFFS_BLOCK_STATE_SCANNING, - /* Being scanned */ + /* Being scanned */ YAFFS_BLOCK_STATE_NEEDS_SCANNING, /* The block might have something on it (ie it is allocating or full, perhaps empty) * but it needs to be scanned to determine its true state. - * This state is only valid during yaffs_Scan. + * This state is only valid during scanning. * NB We tolerate empty because the pre-scanner might be incapable of deciding * However, if this state is returned on a YAFFS2 device, then we expect a sequence number */ @@ -248,13 +241,13 @@ typedef enum { * At least one page holds valid data. * This is the one currently being used for page * allocation. Should never be more than one of these. - * If a block is only partially allocated at mount it is treated as full. + * If a block is only partially allocated at mount it is treated as full. */ YAFFS_BLOCK_STATE_FULL, /* All the pages in this block have been allocated. - * If a block was only partially allocated when mounted we treat - * it as fully allocated. + * If a block was only partially allocated when mounted we treat + * it as fully allocated. */ YAFFS_BLOCK_STATE_DIRTY, @@ -269,100 +262,82 @@ typedef enum { /* This block is being garbage collected */ YAFFS_BLOCK_STATE_DEAD - /* This block has failed and is not in use */ -} yaffs_BlockState; + /* This block has failed and is not in use */ +}; #define YAFFS_NUMBER_OF_BLOCK_STATES (YAFFS_BLOCK_STATE_DEAD + 1) +struct yaffs_block_info { -typedef struct { - - int softDeletions:10; /* number of soft deleted pages */ - int pagesInUse:10; /* number of pages in use */ - unsigned blockState:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */ - __u32 needsRetiring:1; /* Data has failed on this block, need to get valid data off */ - /* and retire the block. */ - __u32 skipErasedCheck:1; /* If this is set we can skip the erased check on this block */ - __u32 gcPrioritise:1; /* An ECC check or blank check has failed on this block. + int soft_del_pages:10; /* number of soft deleted pages */ + int pages_in_use:10; /* number of pages in use */ + unsigned block_state:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */ + u32 needs_retiring:1; /* Data has failed on this block, need to get valid data off */ + /* and retire the block. */ + u32 skip_erased_check:1; /* If this is set we can skip the erased check on this block */ + u32 gc_prioritise:1; /* An ECC check or blank check has failed on this block. It should be prioritised for GC */ - __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ + u32 chunk_error_strikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ #ifdef CONFIG_YAFFS_YAFFS2 - __u32 hasShrinkHeader:1; /* This block has at least one shrink object header */ - __u32 sequenceNumber; /* block sequence number for yaffs2 */ + u32 has_shrink_hdr:1; /* This block has at least one shrink object header */ + u32 seq_number; /* block sequence number for yaffs2 */ #endif -} yaffs_BlockInfo; +}; /* -------------------------- Object structure -------------------------------*/ /* This is the object structure as stored on NAND */ -typedef struct { - yaffs_ObjectType type; +struct yaffs_obj_hdr { + enum yaffs_obj_type type; /* Apply to everything */ - int parentObjectId; - __u16 sum__NoLongerUsed; /* checksum of name. No longer used */ + int parent_obj_id; + u16 sum_no_longer_used; /* checksum of name. No longer used */ YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; /* The following apply to directories, files, symlinks - not hard links */ - __u32 yst_mode; /* protection */ + u32 yst_mode; /* protection */ -#ifdef CONFIG_YAFFS_WINCE - __u32 notForWinCE[5]; -#else - __u32 yst_uid; - __u32 yst_gid; - __u32 yst_atime; - __u32 yst_mtime; - __u32 yst_ctime; -#endif + u32 yst_uid; + u32 yst_gid; + u32 yst_atime; + u32 yst_mtime; + u32 yst_ctime; /* File size applies to files only */ - int fileSize; + int file_size; /* Equivalent object id applies to hard links only. */ - int equivalentObjectId; + int equiv_id; /* Alias is for symlinks only. */ YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1]; - __u32 yst_rdev; /* device stuff for block and char devices (major/min) */ + u32 yst_rdev; /* device stuff for block and char devices (major/min) */ -#ifdef CONFIG_YAFFS_WINCE - __u32 win_ctime[2]; - __u32 win_atime[2]; - __u32 win_mtime[2]; -#else - __u32 roomToGrow[6]; + u32 win_ctime[2]; + u32 win_atime[2]; + u32 win_mtime[2]; -#endif - __u32 inbandShadowsObject; - __u32 inbandIsShrink; + u32 inband_shadowed_obj_id; + u32 inband_is_shrink; - __u32 reservedSpace[2]; - int shadowsObject; /* This object header shadows the specified object if > 0 */ + u32 reserved[2]; + int shadows_obj; /* This object header shadows the specified object if > 0 */ - /* isShrink applies to object headers written when we shrink the file (ie resize) */ - __u32 isShrink; + /* is_shrink applies to object headers written when we shrink the file (ie resize) */ + u32 is_shrink; -} yaffs_ObjectHeader; +}; /*--------------------------- Tnode -------------------------- */ -union yaffs_Tnode_union { -#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG - union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL + 1]; -#else - union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL]; -#endif -/* __u16 level0[YAFFS_NTNODES_LEVEL0]; */ - +struct yaffs_tnode { + struct yaffs_tnode *internal[YAFFS_NTNODES_INTERNAL]; }; -typedef union yaffs_Tnode_union yaffs_Tnode; - - /*------------------------ Object -----------------------------*/ /* An object can be one of: * - a directory (no data, has children links @@ -371,604 +346,570 @@ typedef union yaffs_Tnode_union yaffs_Tnode; * - a hard link */ -typedef struct { - __u32 fileSize; - __u32 scannedFileSize; - __u32 shrinkSize; - int topLevel; - yaffs_Tnode *top; -} yaffs_FileStructure; +struct yaffs_file_var { + u32 file_size; + u32 scanned_size; + u32 shrink_size; + int top_level; + struct yaffs_tnode *top; +}; -typedef struct { - struct ylist_head children; /* list of child links */ - struct ylist_head dirty; /* Entry for list of dirty directories */ -} yaffs_DirectoryStructure; +struct yaffs_dir_var { + struct list_head children; /* list of child links */ + struct list_head dirty; /* Entry for list of dirty directories */ +}; -typedef struct { +struct yaffs_symlink_var { YCHAR *alias; -} yaffs_SymLinkStructure; - -typedef struct { - struct yaffs_ObjectStruct *equivalentObject; - __u32 equivalentObjectId; -} yaffs_HardLinkStructure; - -typedef union { - yaffs_FileStructure fileVariant; - yaffs_DirectoryStructure directoryVariant; - yaffs_SymLinkStructure symLinkVariant; - yaffs_HardLinkStructure hardLinkVariant; -} yaffs_ObjectVariant; - - - -struct yaffs_ObjectStruct { - __u8 deleted:1; /* This should only apply to unlinked files. */ - __u8 softDeleted:1; /* it has also been soft deleted */ - __u8 unlinked:1; /* An unlinked file. The file should be in the unlinked directory.*/ - __u8 fake:1; /* A fake object has no presence on NAND. */ - __u8 renameAllowed:1; /* Some objects are not allowed to be renamed. */ - __u8 unlinkAllowed:1; - __u8 dirty:1; /* the object needs to be written to flash */ - __u8 valid:1; /* When the file system is being loaded up, this +}; + +struct yaffs_hardlink_var { + struct yaffs_obj *equiv_obj; + u32 equiv_id; +}; + +union yaffs_obj_var { + struct yaffs_file_var file_variant; + struct yaffs_dir_var dir_variant; + struct yaffs_symlink_var symlink_variant; + struct yaffs_hardlink_var hardlink_variant; +}; + +struct yaffs_obj { + u8 deleted:1; /* This should only apply to unlinked files. */ + u8 soft_del:1; /* it has also been soft deleted */ + u8 unlinked:1; /* An unlinked file. The file should be in the unlinked directory. */ + u8 fake:1; /* A fake object has no presence on NAND. */ + u8 rename_allowed:1; /* Some objects are not allowed to be renamed. */ + u8 unlink_allowed:1; + u8 dirty:1; /* the object needs to be written to flash */ + u8 valid:1; /* When the file system is being loaded up, this * object might be created before the data * is available (ie. file data records appear before the header). */ - __u8 lazyLoaded:1; /* This object has been lazy loaded and is missing some detail */ + u8 lazy_loaded:1; /* This object has been lazy loaded and is missing some detail */ - __u8 deferedFree:1; /* For Linux kernel. Object is removed from NAND, but is + u8 defered_free:1; /* For Linux kernel. Object is removed from NAND, but is * still in the inode cache. Free of object is defered. * until the inode is released. */ - __u8 beingCreated:1; /* This object is still being created so skip some checks. */ - __u8 isShadowed:1; /* This object is shadowed on the way to being renamed. */ + u8 being_created:1; /* This object is still being created so skip some checks. */ + u8 is_shadowed:1; /* This object is shadowed on the way to being renamed. */ - __u8 xattrKnown:1; /* We know if this has object has xattribs or not. */ - __u8 hasXattr:1; /* This object has xattribs. Valid if xattrKnown. */ + u8 xattr_known:1; /* We know if this has object has xattribs or not. */ + u8 has_xattr:1; /* This object has xattribs. Valid if xattr_known. */ - __u8 serial; /* serial number of chunk in NAND. Cached here */ - __u16 sum; /* sum of the name to speed searching */ + u8 serial; /* serial number of chunk in NAND. Cached here */ + u16 sum; /* sum of the name to speed searching */ - struct yaffs_DeviceStruct *myDev; /* The device I'm on */ + struct yaffs_dev *my_dev; /* The device I'm on */ - struct ylist_head hashLink; /* list of objects in this hash bucket */ + struct list_head hash_link; /* list of objects in this hash bucket */ - struct ylist_head hardLinks; /* all the equivalent hard linked objects */ + struct list_head hard_links; /* all the equivalent hard linked objects */ /* directory structure stuff */ /* also used for linking up the free list */ - struct yaffs_ObjectStruct *parent; - struct ylist_head siblings; + struct yaffs_obj *parent; + struct list_head siblings; /* Where's my object header in NAND? */ - int hdrChunk; + int hdr_chunk; - int nDataChunks; /* Number of data chunks attached to the file. */ + int n_data_chunks; /* Number of data chunks attached to the file. */ - __u32 objectId; /* the object id value */ + u32 obj_id; /* the object id value */ - __u32 yst_mode; + u32 yst_mode; -#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM - YCHAR shortName[YAFFS_SHORT_NAME_LENGTH + 1]; +#ifndef CONFIG_YAFFS_NO_SHORT_NAMES + YCHAR short_name[YAFFS_SHORT_NAME_LENGTH + 1]; #endif #ifdef CONFIG_YAFFS_WINCE - __u32 win_ctime[2]; - __u32 win_mtime[2]; - __u32 win_atime[2]; + u32 win_ctime[2]; + u32 win_mtime[2]; + u32 win_atime[2]; #else - __u32 yst_uid; - __u32 yst_gid; - __u32 yst_atime; - __u32 yst_mtime; - __u32 yst_ctime; + u32 yst_uid; + u32 yst_gid; + u32 yst_atime; + u32 yst_mtime; + u32 yst_ctime; #endif - __u32 yst_rdev; + u32 yst_rdev; - void *myInode; + void *my_inode; - yaffs_ObjectType variantType; + enum yaffs_obj_type variant_type; - yaffs_ObjectVariant variant; + union yaffs_obj_var variant; }; -typedef struct yaffs_ObjectStruct yaffs_Object; - -typedef struct { - struct ylist_head list; +struct yaffs_obj_bucket { + struct list_head list; int count; -} yaffs_ObjectBucket; - +}; -/* yaffs_CheckpointObject holds the definition of an object as dumped +/* yaffs_checkpt_obj holds the definition of an object as dumped * by checkpointing. */ -typedef struct { - int structType; - __u32 objectId; - __u32 parentId; - int hdrChunk; - yaffs_ObjectType variantType:3; - __u8 deleted:1; - __u8 softDeleted:1; - __u8 unlinked:1; - __u8 fake:1; - __u8 renameAllowed:1; - __u8 unlinkAllowed:1; - __u8 serial; - - int nDataChunks; - __u32 fileSizeOrEquivalentObjectId; -} yaffs_CheckpointObject; +struct yaffs_checkpt_obj { + int struct_type; + u32 obj_id; + u32 parent_id; + int hdr_chunk; + enum yaffs_obj_type variant_type:3; + u8 deleted:1; + u8 soft_del:1; + u8 unlinked:1; + u8 fake:1; + u8 rename_allowed:1; + u8 unlink_allowed:1; + u8 serial; + int n_data_chunks; + u32 size_or_equiv_obj; +}; /*--------------------- Temporary buffers ---------------- * * These are chunk-sized working buffers. Each device has a few */ -typedef struct { - __u8 *buffer; - int line; /* track from whence this buffer was allocated */ - int maxLine; -} yaffs_TempBuffer; +struct yaffs_buffer { + u8 *buffer; + int line; /* track from whence this buffer was allocated */ + int max_line; +}; /*----------------- Device ---------------------------------*/ - -struct yaffs_DeviceParamStruct { +struct yaffs_param { const YCHAR *name; /* - * Entry parameters set up way early. Yaffs sets up the rest. - * The structure should be zeroed out before use so that unused - * and defualt values are zero. - */ - - int inbandTags; /* Use unband tags */ - __u32 totalBytesPerChunk; /* Should be >= 512, does not need to be a power of 2 */ - int nChunksPerBlock; /* does not need to be a power of 2 */ - int spareBytesPerChunk; /* spare area size */ - int startBlock; /* Start block we're allowed to use */ - int endBlock; /* End block we're allowed to use */ - int nReservedBlocks; /* We want this tuneable so that we can reduce */ - /* reserved blocks on NOR and RAM. */ - - - int nShortOpCaches; /* If <= 0, then short op caching is disabled, else + * Entry parameters set up way early. Yaffs sets up the rest. + * The structure should be zeroed out before use so that unused + * and defualt values are zero. + */ + + int inband_tags; /* Use unband tags */ + u32 total_bytes_per_chunk; /* Should be >= 512, does not need to be a power of 2 */ + int chunks_per_block; /* does not need to be a power of 2 */ + int spare_bytes_per_chunk; /* spare area size */ + int start_block; /* Start block we're allowed to use */ + int end_block; /* End block we're allowed to use */ + int n_reserved_blocks; /* We want this tuneable so that we can reduce */ + /* reserved blocks on NOR and RAM. */ + + int n_caches; /* If <= 0, then short op caching is disabled, else * the number of short op caches (don't use too many). - * 10 to 20 is a good bet. + * 10 to 20 is a good bet. */ - int useNANDECC; /* Flag to decide whether or not to use NANDECC on data (yaffs1) */ - int noTagsECC; /* Flag to decide whether or not to do ECC on packed tags (yaffs2) */ + int use_nand_ecc; /* Flag to decide whether or not to use NANDECC on data (yaffs1) */ + int no_tags_ecc; /* Flag to decide whether or not to do ECC on packed tags (yaffs2) */ - int isYaffs2; /* Use yaffs2 mode on this device */ + int is_yaffs2; /* Use yaffs2 mode on this device */ - int emptyLostAndFound; /* Auto-empty lost+found directory on mount */ + int empty_lost_n_found; /* Auto-empty lost+found directory on mount */ - int refreshPeriod; /* How often we should check to do a block refresh */ + int refresh_period; /* How often we should check to do a block refresh */ /* Checkpoint control. Can be set before or after initialisation */ - __u8 skipCheckpointRead; - __u8 skipCheckpointWrite; + u8 skip_checkpt_rd; + u8 skip_checkpt_wr; - int enableXattr; /* Enable xattribs */ + int enable_xattr; /* Enable xattribs */ - /* NAND access functions (Must be set before calling YAFFS)*/ + /* NAND access functions (Must be set before calling YAFFS) */ - int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev, - int chunkInNAND, const __u8 *data, - const yaffs_Spare *spare); - int (*readChunkFromNAND) (struct yaffs_DeviceStruct *dev, - int chunkInNAND, __u8 *data, - yaffs_Spare *spare); - int (*eraseBlockInNAND) (struct yaffs_DeviceStruct *dev, - int blockInNAND); - int (*initialiseNAND) (struct yaffs_DeviceStruct *dev); - int (*deinitialiseNAND) (struct yaffs_DeviceStruct *dev); + int (*write_chunk_fn) (struct yaffs_dev * dev, + int nand_chunk, const u8 * data, + const struct yaffs_spare * spare); + int (*read_chunk_fn) (struct yaffs_dev * dev, + int nand_chunk, u8 * data, + struct yaffs_spare * spare); + int (*erase_fn) (struct yaffs_dev * dev, int flash_block); + int (*initialise_flash_fn) (struct yaffs_dev * dev); + int (*deinitialise_flash_fn) (struct yaffs_dev * dev); #ifdef CONFIG_YAFFS_YAFFS2 - int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct *dev, - int chunkInNAND, const __u8 *data, - const yaffs_ExtendedTags *tags); - int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct *dev, - int chunkInNAND, __u8 *data, - yaffs_ExtendedTags *tags); - int (*markNANDBlockBad) (struct yaffs_DeviceStruct *dev, int blockNo); - int (*queryNANDBlock) (struct yaffs_DeviceStruct *dev, int blockNo, - yaffs_BlockState *state, __u32 *sequenceNumber); + int (*write_chunk_tags_fn) (struct yaffs_dev * dev, + int nand_chunk, const u8 * data, + const struct yaffs_ext_tags * tags); + int (*read_chunk_tags_fn) (struct yaffs_dev * dev, + int nand_chunk, u8 * data, + struct yaffs_ext_tags * tags); + int (*bad_block_fn) (struct yaffs_dev * dev, int block_no); + int (*query_block_fn) (struct yaffs_dev * dev, int block_no, + enum yaffs_block_state * state, + u32 * seq_number); #endif - /* The removeObjectCallback function must be supplied by OS flavours that + /* The remove_obj_fn function must be supplied by OS flavours that * need it. - * yaffs direct uses it to implement the faster readdir. - * Linux uses it to protect the directory during unlocking. + * yaffs direct uses it to implement the faster readdir. + * Linux uses it to protect the directory during unlocking. */ - void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj); + void (*remove_obj_fn) (struct yaffs_obj * obj); /* Callback to mark the superblock dirty */ - void (*markSuperBlockDirty)(struct yaffs_DeviceStruct *dev); - + void (*sb_dirty_fn) (struct yaffs_dev * dev); + /* Callback to control garbage collection. */ - unsigned (*gcControl)(struct yaffs_DeviceStruct *dev); + unsigned (*gc_control) (struct yaffs_dev * dev); - /* Debug control flags. Don't use unless you know what you're doing */ - int useHeaderFileSize; /* Flag to determine if we should use file sizes from the header */ - int disableLazyLoad; /* Disable lazy loading on this device */ - int wideTnodesDisabled; /* Set to disable wide tnodes */ - int disableSoftDelete; /* yaffs 1 only: Set to disable the use of softdeletion. */ - - int deferDirectoryUpdate; /* Set to defer directory updates */ + /* Debug control flags. Don't use unless you know what you're doing */ + int use_header_file_size; /* Flag to determine if we should use file sizes from the header */ + int disable_lazy_load; /* Disable lazy loading on this device */ + int wide_tnodes_disabled; /* Set to disable wide tnodes */ + int disable_soft_del; /* yaffs 1 only: Set to disable the use of softdeletion. */ + + int defered_dir_update; /* Set to defer directory updates */ #ifdef CONFIG_YAFFS_AUTO_UNICODE - int autoUnicode; + int auto_unicode; #endif - + int always_check_erased; /* Force chunk erased check always on */ }; -typedef struct yaffs_DeviceParamStruct yaffs_DeviceParam; - -struct yaffs_DeviceStruct { - struct yaffs_DeviceParamStruct param; +struct yaffs_dev { + struct yaffs_param param; - /* Context storage. Holds extra OS specific data for this device */ + /* Context storage. Holds extra OS specific data for this device */ - void *osContext; - void *driverContext; + void *os_context; + void *driver_context; - struct ylist_head devList; + struct list_head dev_list; /* Runtime parameters. Set up by YAFFS. */ - int nDataBytesPerChunk; + int data_bytes_per_chunk; - /* Non-wide tnode stuff */ - __u16 chunkGroupBits; /* Number of bits that need to be resolved if - * the tnodes are not wide enough. - */ - __u16 chunkGroupSize; /* == 2^^chunkGroupBits */ + /* Non-wide tnode stuff */ + u16 chunk_grp_bits; /* Number of bits that need to be resolved if + * the tnodes are not wide enough. + */ + u16 chunk_grp_size; /* == 2^^chunk_grp_bits */ /* Stuff to support wide tnodes */ - __u32 tnodeWidth; - __u32 tnodeMask; - __u32 tnodeSize; + u32 tnode_width; + u32 tnode_mask; + u32 tnode_size; /* Stuff for figuring out file offset to chunk conversions */ - __u32 chunkShift; /* Shift value */ - __u32 chunkDiv; /* Divisor after shifting: 1 for power-of-2 sizes */ - __u32 chunkMask; /* Mask to use for power-of-2 case */ - - - - int isMounted; - int readOnly; - int isCheckpointed; + u32 chunk_shift; /* Shift value */ + u32 chunk_div; /* Divisor after shifting: 1 for power-of-2 sizes */ + u32 chunk_mask; /* Mask to use for power-of-2 case */ + int is_mounted; + int read_only; + int is_checkpointed; /* Stuff to support block offsetting to support start block zero */ - int internalStartBlock; - int internalEndBlock; - int blockOffset; - int chunkOffset; - + int internal_start_block; + int internal_end_block; + int block_offset; + int chunk_offset; /* Runtime checkpointing stuff */ - int checkpointPageSequence; /* running sequence number of checkpoint pages */ - int checkpointByteCount; - int checkpointByteOffset; - __u8 *checkpointBuffer; - int checkpointOpenForWrite; - int blocksInCheckpoint; - int checkpointCurrentChunk; - int checkpointCurrentBlock; - int checkpointNextBlock; - int *checkpointBlockList; - int checkpointMaxBlocks; - __u32 checkpointSum; - __u32 checkpointXor; - - int nCheckpointBlocksRequired; /* Number of blocks needed to store current checkpoint set */ + int checkpt_page_seq; /* running sequence number of checkpoint pages */ + int checkpt_byte_count; + int checkpt_byte_offs; + u8 *checkpt_buffer; + int checkpt_open_write; + int blocks_in_checkpt; + int checkpt_cur_chunk; + int checkpt_cur_block; + int checkpt_next_block; + int *checkpt_block_list; + int checkpt_max_blocks; + u32 checkpt_sum; + u32 checkpt_xor; + + int checkpoint_blocks_required; /* Number of blocks needed to store current checkpoint set */ /* Block Info */ - yaffs_BlockInfo *blockInfo; - __u8 *chunkBits; /* bitmap of chunks in use */ - unsigned blockInfoAlt:1; /* was allocated using alternative strategy */ - unsigned chunkBitsAlt:1; /* was allocated using alternative strategy */ - int chunkBitmapStride; /* Number of bytes of chunkBits per block. - * Must be consistent with nChunksPerBlock. + struct yaffs_block_info *block_info; + u8 *chunk_bits; /* bitmap of chunks in use */ + unsigned block_info_alt:1; /* was allocated using alternative strategy */ + unsigned chunk_bits_alt:1; /* was allocated using alternative strategy */ + int chunk_bit_stride; /* Number of bytes of chunk_bits per block. + * Must be consistent with chunks_per_block. */ - int nErasedBlocks; - int allocationBlock; /* Current block being allocated off */ - __u32 allocationPage; - int allocationBlockFinder; /* Used to search for next allocation block */ + int n_erased_blocks; + int alloc_block; /* Current block being allocated off */ + u32 alloc_page; + int alloc_block_finder; /* Used to search for next allocation block */ /* Object and Tnode memory management */ void *allocator; - int nObjects; - int nTnodes; + int n_obj; + int n_tnodes; - int nHardLinks; + int n_hardlinks; - yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS]; - __u32 bucketFinder; + struct yaffs_obj_bucket obj_bucket[YAFFS_NOBJECT_BUCKETS]; + u32 bucket_finder; - int nFreeChunks; + int n_free_chunks; /* Garbage collection control */ - __u32 *gcCleanupList; /* objects to delete at the end of a GC. */ - __u32 nCleanups; - - unsigned hasPendingPrioritisedGCs; /* We think this device might have pending prioritised gcs */ - unsigned gcDisable; - unsigned gcBlockFinder; - unsigned gcDirtiest; - unsigned gcPagesInUse; - unsigned gcNotDone; - unsigned gcBlock; - unsigned gcChunk; - unsigned gcSkip; + u32 *gc_cleanup_list; /* objects to delete at the end of a GC. */ + u32 n_clean_ups; + + unsigned has_pending_prioritised_gc; /* We think this device might have pending prioritised gcs */ + unsigned gc_disable; + unsigned gc_block_finder; + unsigned gc_dirtiest; + unsigned gc_pages_in_use; + unsigned gc_not_done; + unsigned gc_block; + unsigned gc_chunk; + unsigned gc_skip; /* Special directories */ - yaffs_Object *rootDir; - yaffs_Object *lostNFoundDir; + struct yaffs_obj *root_dir; + struct yaffs_obj *lost_n_found; /* Buffer areas for storing data to recover from write failures TODO - * __u8 bufferedData[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK]; - * yaffs_Spare bufferedSpare[YAFFS_CHUNKS_PER_BLOCK]; + * u8 buffered_data[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK]; + * struct yaffs_spare buffered_spare[YAFFS_CHUNKS_PER_BLOCK]; */ - int bufferedBlock; /* Which block is buffered here? */ - int doingBufferedBlockRewrite; + int buffered_block; /* Which block is buffered here? */ + int doing_buffered_block_rewrite; - yaffs_ChunkCache *srCache; - int srLastUse; + struct yaffs_cache *cache; + int cache_last_use; - /* Stuff for background deletion and unlinked files.*/ - yaffs_Object *unlinkedDir; /* Directory where unlinked and deleted files live. */ - yaffs_Object *deletedDir; /* Directory where deleted objects are sent to disappear. */ - yaffs_Object *unlinkedDeletion; /* Current file being background deleted.*/ - int nDeletedFiles; /* Count of files awaiting deletion;*/ - int nUnlinkedFiles; /* Count of unlinked files. */ - int nBackgroundDeletions; /* Count of background deletions. */ + /* Stuff for background deletion and unlinked files. */ + struct yaffs_obj *unlinked_dir; /* Directory where unlinked and deleted files live. */ + struct yaffs_obj *del_dir; /* Directory where deleted objects are sent to disappear. */ + struct yaffs_obj *unlinked_deletion; /* Current file being background deleted. */ + int n_deleted_files; /* Count of files awaiting deletion; */ + int n_unlinked_files; /* Count of unlinked files. */ + int n_bg_deletions; /* Count of background deletions. */ /* Temporary buffer management */ - yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS]; - int maxTemp; - int tempInUse; - int unmanagedTempAllocations; - int unmanagedTempDeallocations; + struct yaffs_buffer temp_buffer[YAFFS_N_TEMP_BUFFERS]; + int max_temp; + int temp_in_use; + int unmanaged_buffer_allocs; + int unmanaged_buffer_deallocs; /* yaffs2 runtime stuff */ - unsigned sequenceNumber; /* Sequence number of currently allocating block */ - unsigned oldestDirtySequence; - unsigned oldestDirtyBlock; + unsigned seq_number; /* Sequence number of currently allocating block */ + unsigned oldest_dirty_seq; + unsigned oldest_dirty_block; /* Block refreshing */ - int refreshSkip; /* A skip down counter. Refresh happens when this gets to zero. */ + int refresh_skip; /* A skip down counter. Refresh happens when this gets to zero. */ /* Dirty directory handling */ - struct ylist_head dirtyDirectories; /* List of dirty directories */ - + struct list_head dirty_dirs; /* List of dirty directories */ /* Statistcs */ - __u32 nPageWrites; - __u32 nPageReads; - __u32 nBlockErasures; - __u32 nErasureFailures; - __u32 nGCCopies; - __u32 allGCs; - __u32 passiveGCs; - __u32 oldestDirtyGCs; - __u32 nGCBlocks; - __u32 backgroundGCs; - __u32 nRetriedWrites; - __u32 nRetiredBlocks; - __u32 eccFixed; - __u32 eccUnfixed; - __u32 tagsEccFixed; - __u32 tagsEccUnfixed; - __u32 nDeletions; - __u32 nUnmarkedDeletions; - __u32 refreshCount; - __u32 cacheHits; + u32 n_page_writes; + u32 n_page_reads; + u32 n_erasures; + u32 n_erase_failures; + u32 n_gc_copies; + u32 all_gcs; + u32 passive_gc_count; + u32 oldest_dirty_gc_count; + u32 n_gc_blocks; + u32 bg_gcs; + u32 n_retired_writes; + u32 n_retired_blocks; + u32 n_ecc_fixed; + u32 n_ecc_unfixed; + u32 n_tags_ecc_fixed; + u32 n_tags_ecc_unfixed; + u32 n_deletions; + u32 n_unmarked_deletions; + u32 refresh_count; + u32 cache_hits; }; -typedef struct yaffs_DeviceStruct yaffs_Device; - -/* The static layout of block usage etc is stored in the super block header */ -typedef struct { - int StructType; - int version; - int checkpointStartBlock; - int checkpointEndBlock; - int startBlock; - int endBlock; - int rfu[100]; -} yaffs_SuperBlockHeader; - /* The CheckpointDevice structure holds the device information that changes at runtime and * must be preserved over unmount/mount cycles. */ -typedef struct { - int structType; - int nErasedBlocks; - int allocationBlock; /* Current block being allocated off */ - __u32 allocationPage; - int nFreeChunks; +struct yaffs_checkpt_dev { + int struct_type; + int n_erased_blocks; + int alloc_block; /* Current block being allocated off */ + u32 alloc_page; + int n_free_chunks; - int nDeletedFiles; /* Count of files awaiting deletion;*/ - int nUnlinkedFiles; /* Count of unlinked files. */ - int nBackgroundDeletions; /* Count of background deletions. */ + int n_deleted_files; /* Count of files awaiting deletion; */ + int n_unlinked_files; /* Count of unlinked files. */ + int n_bg_deletions; /* Count of background deletions. */ /* yaffs2 runtime stuff */ - unsigned sequenceNumber; /* Sequence number of currently allocating block */ - -} yaffs_CheckpointDevice; + unsigned seq_number; /* Sequence number of currently allocating block */ +}; -typedef struct { - int structType; - __u32 magic; - __u32 version; - __u32 head; -} yaffs_CheckpointValidity; - +struct yaffs_checkpt_validity { + int struct_type; + u32 magic; + u32 version; + u32 head; +}; -struct yaffs_ShadowFixerStruct { - int objectId; - int shadowedId; - struct yaffs_ShadowFixerStruct *next; +struct yaffs_shadow_fixer { + int obj_id; + int shadowed_id; + struct yaffs_shadow_fixer *next; }; /* Structure for doing xattr modifications */ -typedef struct { - int set; /* If 0 then this is a deletion */ +struct yaffs_xattr_mod { + int set; /* If 0 then this is a deletion */ const YCHAR *name; const void *data; int size; int flags; int result; -}yaffs_XAttrMod; - +}; /*----------------------- YAFFS Functions -----------------------*/ -int yaffs_GutsInitialise(yaffs_Device *dev); -void yaffs_Deinitialise(yaffs_Device *dev); - -int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev); +int yaffs_guts_initialise(struct yaffs_dev *dev); +void yaffs_deinitialise(struct yaffs_dev *dev); -int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, - yaffs_Object *newDir, const YCHAR *newName); +int yaffs_get_n_free_chunks(struct yaffs_dev *dev); -int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name); -int yaffs_DeleteObject(yaffs_Object *obj); +int yaffs_rename_obj(struct yaffs_obj *old_dir, const YCHAR * old_name, + struct yaffs_obj *new_dir, const YCHAR * new_name); -int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize); -int yaffs_GetObjectFileLength(yaffs_Object *obj); -int yaffs_GetObjectInode(yaffs_Object *obj); -unsigned yaffs_GetObjectType(yaffs_Object *obj); -int yaffs_GetObjectLinkCount(yaffs_Object *obj); +int yaffs_unlinker(struct yaffs_obj *dir, const YCHAR * name); +int yaffs_del_obj(struct yaffs_obj *obj); -int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr); -int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr); +int yaffs_get_obj_name(struct yaffs_obj *obj, YCHAR * name, int buffer_size); +int yaffs_get_obj_length(struct yaffs_obj *obj); +int yaffs_get_obj_inode(struct yaffs_obj *obj); +unsigned yaffs_get_obj_type(struct yaffs_obj *obj); +int yaffs_get_obj_link_count(struct yaffs_obj *obj); /* File operations */ -int yaffs_ReadDataFromFile(yaffs_Object *obj, __u8 *buffer, loff_t offset, - int nBytes); -int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, loff_t offset, - int nBytes, int writeThrough); -int yaffs_ResizeFile(yaffs_Object *obj, loff_t newSize); +int yaffs_file_rd(struct yaffs_obj *obj, u8 * buffer, loff_t offset, + int n_bytes); +int yaffs_wr_file(struct yaffs_obj *obj, const u8 * buffer, loff_t offset, + int n_bytes, int write_trhrough); +int yaffs_resize_file(struct yaffs_obj *obj, loff_t new_size); -yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid); +struct yaffs_obj *yaffs_create_file(struct yaffs_obj *parent, + const YCHAR * name, u32 mode, u32 uid, + u32 gid); -int yaffs_FlushFile(yaffs_Object *obj, int updateTime, int dataSync); +int yaffs_flush_file(struct yaffs_obj *obj, int update_time, int data_sync); /* Flushing and checkpointing */ -void yaffs_FlushEntireDeviceCache(yaffs_Device *dev); +void yaffs_flush_whole_cache(struct yaffs_dev *dev); -int yaffs_CheckpointSave(yaffs_Device *dev); -int yaffs_CheckpointRestore(yaffs_Device *dev); +int yaffs_checkpoint_save(struct yaffs_dev *dev); +int yaffs_checkpoint_restore(struct yaffs_dev *dev); /* Directory operations */ -yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid); -yaffs_Object *yaffs_FindObjectByName(yaffs_Object *theDir, const YCHAR *name); -int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, - int (*fn) (yaffs_Object *)); - -yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number); +struct yaffs_obj *yaffs_create_dir(struct yaffs_obj *parent, const YCHAR * name, + u32 mode, u32 uid, u32 gid); +struct yaffs_obj *yaffs_find_by_name(struct yaffs_obj *the_dir, + const YCHAR * name); +struct yaffs_obj *yaffs_find_by_number(struct yaffs_dev *dev, u32 number); /* Link operations */ -yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, - yaffs_Object *equivalentObject); +struct yaffs_obj *yaffs_link_obj(struct yaffs_obj *parent, const YCHAR * name, + struct yaffs_obj *equiv_obj); -yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj); +struct yaffs_obj *yaffs_get_equivalent_obj(struct yaffs_obj *obj); /* Symlink operations */ -yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid, - const YCHAR *alias); -YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj); +struct yaffs_obj *yaffs_create_symlink(struct yaffs_obj *parent, + const YCHAR * name, u32 mode, u32 uid, + u32 gid, const YCHAR * alias); +YCHAR *yaffs_get_symlink_alias(struct yaffs_obj *obj); /* Special inodes (fifos, sockets and devices) */ -yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid, __u32 rdev); - +struct yaffs_obj *yaffs_create_special(struct yaffs_obj *parent, + const YCHAR * name, u32 mode, u32 uid, + u32 gid, u32 rdev); -int yaffs_SetXAttribute(yaffs_Object *obj, const YCHAR *name, const void * value, int size, int flags); -int yaffs_GetXAttribute(yaffs_Object *obj, const YCHAR *name, void *value, int size); -int yaffs_ListXAttributes(yaffs_Object *obj, char *buffer, int size); -int yaffs_RemoveXAttribute(yaffs_Object *obj, const YCHAR *name); +int yaffs_set_xattrib(struct yaffs_obj *obj, const YCHAR * name, + const void *value, int size, int flags); +int yaffs_get_xattrib(struct yaffs_obj *obj, const YCHAR * name, void *value, + int size); +int yaffs_list_xattrib(struct yaffs_obj *obj, char *buffer, int size); +int yaffs_remove_xattrib(struct yaffs_obj *obj, const YCHAR * name); /* Special directories */ -yaffs_Object *yaffs_Root(yaffs_Device *dev); -yaffs_Object *yaffs_LostNFound(yaffs_Device *dev); +struct yaffs_obj *yaffs_root(struct yaffs_dev *dev); +struct yaffs_obj *yaffs_lost_n_found(struct yaffs_dev *dev); -#ifdef CONFIG_YAFFS_WINCE -/* CONFIG_YAFFS_WINCE special stuff */ -void yfsd_WinFileTimeNow(__u32 target[2]); -#endif +void yaffs_handle_defered_free(struct yaffs_obj *obj); -void yaffs_HandleDeferedFree(yaffs_Object *obj); +void yaffs_update_dirty_dirs(struct yaffs_dev *dev); -void yaffs_UpdateDirtyDirectories(yaffs_Device *dev); - -int yaffs_BackgroundGarbageCollect(yaffs_Device *dev, unsigned urgency); +int yaffs_bg_gc(struct yaffs_dev *dev, unsigned urgency); /* Debug dump */ -int yaffs_DumpObject(yaffs_Object *obj); +int yaffs_dump_obj(struct yaffs_obj *obj); -void yaffs_GutsTest(yaffs_Device *dev); +void yaffs_guts_test(struct yaffs_dev *dev); /* A few useful functions to be used within the core files*/ -void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn); -int yaffs_CheckFF(__u8 *buffer, int nBytes); -void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi); - -__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo); -void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, int lineNo); - -yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device *dev, - int number, - yaffs_ObjectType type); -int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, - int chunkInNAND, int inScan); -void yaffs_SetObjectName(yaffs_Object *obj, const YCHAR *name); -void yaffs_SetObjectNameFromOH(yaffs_Object *obj, const yaffs_ObjectHeader *oh); -void yaffs_AddObjectToDirectory(yaffs_Object *directory, - yaffs_Object *obj); -YCHAR *yaffs_CloneString(const YCHAR *str); -void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList); -void yaffs_BlockBecameDirty(yaffs_Device *dev, int blockNo); -int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, - int force, int isShrink, int shadows, - yaffs_XAttrMod *xop); -void yaffs_HandleShadowedObject(yaffs_Device *dev, int objId, - int backwardScanning); -int yaffs_CheckSpaceForAllocation(yaffs_Device *dev, int nChunks); -yaffs_Tnode *yaffs_GetTnode(yaffs_Device *dev); -yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device *dev, - yaffs_FileStructure *fStruct, - __u32 chunkId, - yaffs_Tnode *passedTn); - -int yaffs_DoWriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset, - int nBytes, int writeThrough); -void yaffs_ResizeDown( yaffs_Object *obj, loff_t newSize); -void yaffs_SkipRestOfBlock(yaffs_Device *dev); - -int yaffs_CountFreeChunks(yaffs_Device *dev); - -yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, - yaffs_FileStructure *fStruct, - __u32 chunkId); - -__u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos); - +void yaffs_chunk_del(struct yaffs_dev *dev, int chunk_id, int mark_flash, + int lyn); +int yaffs_check_ff(u8 * buffer, int n_bytes); +void yaffs_handle_chunk_error(struct yaffs_dev *dev, + struct yaffs_block_info *bi); + +u8 *yaffs_get_temp_buffer(struct yaffs_dev *dev, int line_no); +void yaffs_release_temp_buffer(struct yaffs_dev *dev, u8 * buffer, int line_no); + +struct yaffs_obj *yaffs_find_or_create_by_number(struct yaffs_dev *dev, + int number, + enum yaffs_obj_type type); +int yaffs_put_chunk_in_file(struct yaffs_obj *in, int inode_chunk, + int nand_chunk, int in_scan); +void yaffs_set_obj_name(struct yaffs_obj *obj, const YCHAR * name); +void yaffs_set_obj_name_from_oh(struct yaffs_obj *obj, + const struct yaffs_obj_hdr *oh); +void yaffs_add_obj_to_dir(struct yaffs_obj *directory, struct yaffs_obj *obj); +YCHAR *yaffs_clone_str(const YCHAR * str); +void yaffs_link_fixup(struct yaffs_dev *dev, struct yaffs_obj *hard_list); +void yaffs_block_became_dirty(struct yaffs_dev *dev, int block_no); +int yaffs_update_oh(struct yaffs_obj *in, const YCHAR * name, + int force, int is_shrink, int shadows, + struct yaffs_xattr_mod *xop); +void yaffs_handle_shadowed_obj(struct yaffs_dev *dev, int obj_id, + int backward_scanning); +int yaffs_check_alloc_available(struct yaffs_dev *dev, int n_chunks); +struct yaffs_tnode *yaffs_get_tnode(struct yaffs_dev *dev); +struct yaffs_tnode *yaffs_add_find_tnode_0(struct yaffs_dev *dev, + struct yaffs_file_var *file_struct, + u32 chunk_id, + struct yaffs_tnode *passed_tn); + +int yaffs_do_file_wr(struct yaffs_obj *in, const u8 * buffer, loff_t offset, + int n_bytes, int write_trhrough); +void yaffs_resize_file_down(struct yaffs_obj *obj, loff_t new_size); +void yaffs_skip_rest_of_block(struct yaffs_dev *dev); + +int yaffs_count_free_chunks(struct yaffs_dev *dev); + +struct yaffs_tnode *yaffs_find_tnode_0(struct yaffs_dev *dev, + struct yaffs_file_var *file_struct, + u32 chunk_id); + +u32 yaffs_get_group_base(struct yaffs_dev *dev, struct yaffs_tnode *tn, + unsigned pos); + +int yaffs_is_non_empty_dir(struct yaffs_obj *obj); #endif