X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Freiserfs_fs.h;h=bc5114d35e99b65db4e11acefe3bae623a7c9db9;hb=9308a6128d9074e348d9f9b5822546fe12a794a9;hp=001ab82df051dd21ba5697f5b258ff8a13731e8f;hpb=27496a8c67bef4d789d8e3c8317ca35813a507ae;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h index 001ab82..bc5114d 100644 --- a/include/linux/reiserfs_fs.h +++ b/include/linux/reiserfs_fs.h @@ -12,6 +12,8 @@ #define _LINUX_REISER_FS_H #include +#include + #ifdef __KERNEL__ #include #include @@ -26,6 +28,8 @@ #include #endif +struct fid; + /* * include/linux/reiser_fs.h * @@ -79,14 +83,16 @@ void reiserfs_warning(struct super_block *s, const char *fmt, ...); /* assertions handling */ /** always check a condition and panic if it's false. */ -#define RASSERT( cond, format, args... ) \ +#define __RASSERT( cond, scond, format, args... ) \ if( !( cond ) ) \ - reiserfs_panic( NULL, "reiserfs[%i]: assertion " #cond " failed at " \ + reiserfs_panic( NULL, "reiserfs[%i]: assertion " scond " failed at " \ __FILE__ ":%i:%s: " format "\n", \ - in_interrupt() ? -1 : current -> pid, __LINE__ , __FUNCTION__ , ##args ) + in_interrupt() ? -1 : task_pid_nr(current), __LINE__ , __func__ , ##args ) + +#define RASSERT(cond, format, args...) __RASSERT(cond, #cond, format, ##args) #if defined( CONFIG_REISERFS_CHECK ) -#define RFALSE( cond, format, args... ) RASSERT( !( cond ), format, ##args ) +#define RFALSE(cond, format, args...) __RASSERT(!(cond), "!(" #cond ")", format, ##args) #else #define RFALSE( cond, format, args... ) do {;} while( 0 ) #endif @@ -227,14 +233,6 @@ struct reiserfs_super_block { ((!is_reiserfs_jr(SB_DISK_SUPER_BLOCK(s)) ? \ SB_ONDISK_JOURNAL_SIZE(s) + 1 : SB_ONDISK_RESERVED_FOR_JOURNAL(s))) - /* used by gcc */ -#define REISERFS_SUPER_MAGIC 0x52654973 - /* used by file system utilities that - look at the superblock, etc. */ -#define REISERFS_SUPER_MAGIC_STRING "ReIsErFs" -#define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs" -#define REISER2FS_JR_SUPER_MAGIC_STRING "ReIsEr3Fs" - int is_reiserfs_3_5(struct reiserfs_super_block *rs); int is_reiserfs_3_6(struct reiserfs_super_block *rs); int is_reiserfs_jr(struct reiserfs_super_block *rs); @@ -287,6 +285,18 @@ static inline struct reiserfs_sb_info *REISERFS_SB(const struct super_block *sb) return sb->s_fs_info; } +/* Don't trust REISERFS_SB(sb)->s_bmap_nr, it's a u16 + * which overflows on large file systems. */ +static inline __u32 reiserfs_bmap_count(struct super_block *sb) +{ + return (SB_BLOCK_COUNT(sb) - 1) / (sb->s_blocksize * 8) + 1; +} + +static inline int bmap_would_wrap(unsigned bmap_nr) +{ + return bmap_nr > ((1LL << 16) - 1); +} + /** this says about version of key of all items (but stat data) the object consists of */ #define get_inode_item_key_version( inode ) \ @@ -516,8 +526,8 @@ struct item_head { ** p is the array of __u32, i is the index into the array, v is the value ** to store there. */ -#define get_block_num(p, i) le32_to_cpu(get_unaligned((p) + (i))) -#define put_block_num(p, i, v) put_unaligned(cpu_to_le32(v), (p) + (i)) +#define get_block_num(p, i) get_unaligned_le32((p) + (i)) +#define put_block_num(p, i, v) put_unaligned_le32((v), (p) + (i)) // // in old version uniqueness field shows key type @@ -745,7 +755,7 @@ struct block_head { #define PUT_B_FREE_SPACE(p_s_bh,val) do { set_blkh_free_space(B_BLK_HEAD(p_s_bh),val); } while (0) /* Get right delimiting key. -- little endian */ -#define B_PRIGHT_DELIM_KEY(p_s_bh) (&(blk_right_delim_key(B_BLK_HEAD(p_s_bh)) +#define B_PRIGHT_DELIM_KEY(p_s_bh) (&(blk_right_delim_key(B_BLK_HEAD(p_s_bh)))) /* Does the buffer contain a disk leaf. */ #define B_IS_ITEMS_LEVEL(p_s_bh) (B_LEVEL(p_s_bh) == DISK_LEAF_NODE_LEVEL) @@ -813,21 +823,19 @@ struct stat_data_v1 { #define set_sd_v1_first_direct_byte(sdp,v) \ ((sdp)->sd_first_direct_byte = cpu_to_le32(v)) -#include - /* inode flags stored in sd_attrs (nee sd_reserved) */ /* we want common flags to have the same values as in ext2, so chattr(1) will work without problems */ -#define REISERFS_IMMUTABLE_FL EXT2_IMMUTABLE_FL -#define REISERFS_APPEND_FL EXT2_APPEND_FL -#define REISERFS_SYNC_FL EXT2_SYNC_FL -#define REISERFS_NOATIME_FL EXT2_NOATIME_FL -#define REISERFS_NODUMP_FL EXT2_NODUMP_FL -#define REISERFS_SECRM_FL EXT2_SECRM_FL -#define REISERFS_UNRM_FL EXT2_UNRM_FL -#define REISERFS_COMPR_FL EXT2_COMPR_FL -#define REISERFS_NOTAIL_FL EXT2_NOTAIL_FL +#define REISERFS_IMMUTABLE_FL FS_IMMUTABLE_FL +#define REISERFS_APPEND_FL FS_APPEND_FL +#define REISERFS_SYNC_FL FS_SYNC_FL +#define REISERFS_NOATIME_FL FS_NOATIME_FL +#define REISERFS_NODUMP_FL FS_NODUMP_FL +#define REISERFS_SECRM_FL FS_SECRM_FL +#define REISERFS_UNRM_FL FS_UNRM_FL +#define REISERFS_COMPR_FL FS_COMPR_FL +#define REISERFS_NOTAIL_FL FS_NOTAIL_FL /* persistent flags that file inherits from the parent directory */ #define REISERFS_INHERIT_MASK ( REISERFS_IMMUTABLE_FL | \ @@ -1052,7 +1060,7 @@ struct reiserfs_dir_entry { int de_entrylen; int de_namelen; char *de_name; - char *de_gen_number_bit_string; + unsigned long *de_gen_number_bit_string; __u32 de_dir_id; __u32 de_objectid; @@ -1167,7 +1175,7 @@ znodes are the way! */ #define PATH_READA 0x1 /* do read ahead */ #define PATH_READA_BACK 0x2 /* read backwards */ -struct path { +struct treepath { int path_length; /* Length of the array above. */ int reada; struct path_element path_elements[EXTENDED_MAX_HEIGHT]; /* Array of the path elements. */ @@ -1177,7 +1185,7 @@ struct path { #define pos_in_item(path) ((path)->pos_in_item) #define INITIALIZE_PATH(var) \ -struct path var = {.path_length = ILLEGAL_PATH_ELEMENT_OFFSET, .reada = 0,} +struct treepath var = {.path_length = ILLEGAL_PATH_ELEMENT_OFFSET, .reada = 0,} /* Get path element by path and path position. */ #define PATH_OFFSET_PELEMENT(p_s_path,n_offset) ((p_s_path)->path_elements +(n_offset)) @@ -1335,7 +1343,7 @@ struct tree_balance { int need_balance_dirty; struct super_block *tb_sb; struct reiserfs_transaction_handle *transaction_handle; - struct path *tb_path; + struct treepath *tb_path; struct buffer_head *L[MAX_HEIGHT]; /* array of left neighbors of nodes in the path */ struct buffer_head *R[MAX_HEIGHT]; /* array of right neighbors of nodes in the path */ struct buffer_head *FL[MAX_HEIGHT]; /* array of fathers of the left neighbors */ @@ -1704,7 +1712,10 @@ static inline int reiserfs_transaction_running(struct super_block *s) return 0; } -int reiserfs_async_progress_wait(struct super_block *s); +static inline int reiserfs_transaction_free_space(struct reiserfs_transaction_handle *th) +{ + return th->t_blocks_allocated - th->t_blocks_logged; +} struct reiserfs_transaction_handle *reiserfs_persistent_transaction(struct super_block @@ -1737,8 +1748,8 @@ int journal_end_sync(struct reiserfs_transaction_handle *, struct super_block *, int journal_mark_freed(struct reiserfs_transaction_handle *, struct super_block *, b_blocknr_t blocknr); int journal_transaction_should_end(struct reiserfs_transaction_handle *, int); -int reiserfs_in_journal(struct super_block *p_s_sb, int bmap_nr, int bit_nr, - int searchall, b_blocknr_t * next); +int reiserfs_in_journal(struct super_block *p_s_sb, unsigned int bmap_nr, + int bit_nr, int searchall, b_blocknr_t *next); int journal_begin(struct reiserfs_transaction_handle *, struct super_block *p_s_sb, unsigned long); int journal_join_abort(struct reiserfs_transaction_handle *, @@ -1746,7 +1757,7 @@ int journal_join_abort(struct reiserfs_transaction_handle *, void reiserfs_journal_abort(struct super_block *sb, int errno); void reiserfs_abort(struct super_block *sb, int errno, const char *fmt, ...); int reiserfs_allocate_list_bitmaps(struct super_block *s, - struct reiserfs_list_bitmap *, int); + struct reiserfs_list_bitmap *, unsigned int); void add_save_link(struct reiserfs_transaction_handle *th, struct inode *inode, int truncate); @@ -1796,41 +1807,41 @@ static inline void copy_key(struct reiserfs_key *to, memcpy(to, from, KEY_SIZE); } -int comp_items(const struct item_head *stored_ih, const struct path *p_s_path); -const struct reiserfs_key *get_rkey(const struct path *p_s_chk_path, +int comp_items(const struct item_head *stored_ih, const struct treepath *p_s_path); +const struct reiserfs_key *get_rkey(const struct treepath *p_s_chk_path, const struct super_block *p_s_sb); int search_by_key(struct super_block *, const struct cpu_key *, - struct path *, int); + struct treepath *, int); #define search_item(s,key,path) search_by_key (s, key, path, DISK_LEAF_NODE_LEVEL) int search_for_position_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_cpu_key, - struct path *p_s_search_path); + struct treepath *p_s_search_path); extern void decrement_bcount(struct buffer_head *p_s_bh); -void decrement_counters_in_path(struct path *p_s_search_path); -void pathrelse(struct path *p_s_search_path); -int reiserfs_check_path(struct path *p); -void pathrelse_and_restore(struct super_block *s, struct path *p_s_search_path); +void decrement_counters_in_path(struct treepath *p_s_search_path); +void pathrelse(struct treepath *p_s_search_path); +int reiserfs_check_path(struct treepath *p); +void pathrelse_and_restore(struct super_block *s, struct treepath *p_s_search_path); int reiserfs_insert_item(struct reiserfs_transaction_handle *th, - struct path *path, + struct treepath *path, const struct cpu_key *key, struct item_head *ih, struct inode *inode, const char *body); int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, - struct path *path, + struct treepath *path, const struct cpu_key *key, struct inode *inode, const char *body, int paste_size); int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th, - struct path *path, + struct treepath *path, struct cpu_key *key, struct inode *inode, struct page *page, loff_t new_file_size); int reiserfs_delete_item(struct reiserfs_transaction_handle *th, - struct path *path, + struct treepath *path, const struct cpu_key *key, struct inode *inode, struct buffer_head *p_s_un_bh); @@ -1857,11 +1868,9 @@ void padd_item(char *item, int total_length, int length); #define GET_BLOCK_CREATE 1 /* add anything you need to find block */ #define GET_BLOCK_NO_HOLE 2 /* return -ENOENT for file holes */ #define GET_BLOCK_READ_DIRECT 4 /* read the tail if indirect item not found */ -#define GET_BLOCK_NO_ISEM 8 /* i_sem is not held, don't preallocate */ +#define GET_BLOCK_NO_IMUX 8 /* i_mutex is not held, don't preallocate */ #define GET_BLOCK_NO_DANGLE 16 /* don't leave any transactions running */ -int restart_transaction(struct reiserfs_transaction_handle *th, - struct inode *inode, struct path *path); void reiserfs_read_locked_inode(struct inode *inode, struct reiserfs_iget_args *args); int reiserfs_find_actor(struct inode *inode, void *p); @@ -1870,12 +1879,10 @@ void reiserfs_delete_inode(struct inode *inode); int reiserfs_write_inode(struct inode *inode, int); int reiserfs_get_block(struct inode *inode, sector_t block, struct buffer_head *bh_result, int create); -struct dentry *reiserfs_get_dentry(struct super_block *, void *); -struct dentry *reiserfs_decode_fh(struct super_block *sb, __u32 * data, - int len, int fhtype, - int (*acceptable) (void *contect, - struct dentry * de), - void *context); +struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, struct fid *fid, + int fh_len, int fh_type); +struct dentry *reiserfs_fh_to_parent(struct super_block *sb, struct fid *fid, + int fh_len, int fh_type); int reiserfs_encode_fh(struct dentry *dentry, __u32 * data, int *lenp, int connectable); @@ -1908,7 +1915,7 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr); /* namei.c */ void set_de_name_and_namelen(struct reiserfs_dir_entry *de); int search_by_entry_key(struct super_block *sb, const struct cpu_key *key, - struct path *path, struct reiserfs_dir_entry *de); + struct treepath *path, struct reiserfs_dir_entry *de); struct dentry *reiserfs_get_parent(struct dentry *); /* procfs.c */ @@ -1952,41 +1959,25 @@ int reiserfs_global_version_in_proc(char *buffer, char **start, off_t offset, #endif /* dir.c */ -extern struct inode_operations reiserfs_dir_inode_operations; -extern struct inode_operations reiserfs_symlink_inode_operations; -extern struct inode_operations reiserfs_special_inode_operations; -extern struct file_operations reiserfs_dir_operations; +extern const struct inode_operations reiserfs_dir_inode_operations; +extern const struct inode_operations reiserfs_symlink_inode_operations; +extern const struct inode_operations reiserfs_special_inode_operations; +extern const struct file_operations reiserfs_dir_operations; /* tail_conversion.c */ int direct2indirect(struct reiserfs_transaction_handle *, struct inode *, - struct path *, struct buffer_head *, loff_t); + struct treepath *, struct buffer_head *, loff_t); int indirect2direct(struct reiserfs_transaction_handle *, struct inode *, - struct page *, struct path *, const struct cpu_key *, + struct page *, struct treepath *, const struct cpu_key *, loff_t, char *); void reiserfs_unmap_buffer(struct buffer_head *); /* file.c */ -extern struct inode_operations reiserfs_file_inode_operations; -extern struct file_operations reiserfs_file_operations; -extern struct address_space_operations reiserfs_address_space_operations; +extern const struct inode_operations reiserfs_file_inode_operations; +extern const struct file_operations reiserfs_file_operations; +extern const struct address_space_operations reiserfs_address_space_operations; /* fix_nodes.c */ -#ifdef CONFIG_REISERFS_CHECK -void *reiserfs_kmalloc(size_t size, gfp_t flags, struct super_block *s); -void reiserfs_kfree(const void *vp, size_t size, struct super_block *s); -#else -static inline void *reiserfs_kmalloc(size_t size, int flags, - struct super_block *s) -{ - return kmalloc(size, flags); -} - -static inline void reiserfs_kfree(const void *vp, size_t size, - struct super_block *s) -{ - kfree(vp); -} -#endif int fix_nodes(int n_op_mode, struct tree_balance *p_s_tb, struct item_head *p_s_ins_ih, const void *); @@ -2062,9 +2053,9 @@ struct buffer_head *get_FEB(struct tree_balance *); * arguments, such as node, search path, transaction_handle, etc. */ struct __reiserfs_blocknr_hint { struct inode *inode; /* inode passed to allocator, if we allocate unf. nodes */ - long block; /* file offset, in blocks */ + sector_t block; /* file offset, in blocks */ struct in_core_key key; - struct path *path; /* search path, used by allocator to deternine search_start by + struct treepath *path; /* search path, used by allocator to deternine search_start by * various ways */ struct reiserfs_transaction_handle *th; /* transaction handle is needed to log super blocks and * bitmap blocks changes */ @@ -2092,6 +2083,10 @@ void reiserfs_init_alloc_options(struct super_block *s); */ __le32 reiserfs_choose_packing(struct inode *dir); +int reiserfs_init_bitmap_cache(struct super_block *sb); +void reiserfs_free_bitmap_cache(struct super_block *sb); +void reiserfs_cache_bitmap_metadata(struct super_block *sb, struct buffer_head *bh, struct reiserfs_bitmap_info *info); +struct buffer_head *reiserfs_read_bitmap_block(struct super_block *sb, unsigned int bitmap); int is_reusable(struct super_block *s, b_blocknr_t block, int bit_value); void reiserfs_free_block(struct reiserfs_transaction_handle *th, struct inode *, b_blocknr_t, int for_unformatted); @@ -2116,7 +2111,8 @@ static inline int reiserfs_new_form_blocknrs(struct tree_balance *tb, static inline int reiserfs_new_unf_blocknrs(struct reiserfs_transaction_handle *th, struct inode *inode, b_blocknr_t * new_blocknrs, - struct path *path, long block) + struct treepath *path, + sector_t block) { reiserfs_blocknr_hint_t hint = { .th = th, @@ -2133,7 +2129,8 @@ static inline int reiserfs_new_unf_blocknrs(struct reiserfs_transaction_handle static inline int reiserfs_new_unf_blocknrs2(struct reiserfs_transaction_handle *th, struct inode *inode, b_blocknr_t * new_blocknrs, - struct path *path, long block) + struct treepath *path, + sector_t block) { reiserfs_blocknr_hint_t hint = { .th = th, @@ -2150,9 +2147,6 @@ void reiserfs_discard_prealloc(struct reiserfs_transaction_handle *th, struct inode *inode); void reiserfs_discard_all_prealloc(struct reiserfs_transaction_handle *th); #endif -void reiserfs_claim_blocks_to_be_allocated(struct super_block *sb, int blocks); -void reiserfs_release_claimed_blocks(struct super_block *sb, int blocks); -int reiserfs_can_fit_pages(struct super_block *sb); /* hashes.c */ __u32 keyed_hash(const signed char *msg, int len); @@ -2180,15 +2174,25 @@ __u32 r5_hash(const signed char *msg, int len); /* prototypes from ioctl.c */ int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +long reiserfs_compat_ioctl(struct file *filp, + unsigned int cmd, unsigned long arg); +int reiserfs_unpack(struct inode *inode, struct file *filp); /* ioctl's command */ #define REISERFS_IOC_UNPACK _IOW(0xCD,1,long) /* define following flags to be the same as in ext2, so that chattr(1), lsattr(1) will work with us. */ -#define REISERFS_IOC_GETFLAGS EXT2_IOC_GETFLAGS -#define REISERFS_IOC_SETFLAGS EXT2_IOC_SETFLAGS -#define REISERFS_IOC_GETVERSION EXT2_IOC_GETVERSION -#define REISERFS_IOC_SETVERSION EXT2_IOC_SETVERSION +#define REISERFS_IOC_GETFLAGS FS_IOC_GETFLAGS +#define REISERFS_IOC_SETFLAGS FS_IOC_SETFLAGS +#define REISERFS_IOC_GETVERSION FS_IOC_GETVERSION +#define REISERFS_IOC_SETVERSION FS_IOC_SETVERSION + +/* the 32 bit compat definitions with int argument */ +#define REISERFS_IOC32_UNPACK _IOW(0xCD, 1, int) +#define REISERFS_IOC32_GETFLAGS FS_IOC32_GETFLAGS +#define REISERFS_IOC32_SETFLAGS FS_IOC32_SETFLAGS +#define REISERFS_IOC32_GETVERSION FS_IOC32_GETVERSION +#define REISERFS_IOC32_SETVERSION FS_IOC32_SETVERSION /* Locking primitives */ /* Right now we are still falling back to (un)lock_kernel, but eventually that