X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Ffs.h;h=6022f44043f2a01305bb09564c82d78bd08ad006;hb=99cf610aa4840d822cdc67d194b23b55010ca9bd;hp=eb01313191349bb348c2ad626e7ee6162be15f79;hpb=fb2dce862d9f9a68e6b9374579056ec9eca02a63;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/linux/fs.h b/include/linux/fs.h index eb01313..6022f44 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -21,7 +21,6 @@ /* Fixed constants first: */ #undef NR_OPEN -extern int sysctl_nr_open; #define INR_OPEN 1024 /* Initial setting for nfile rlimits */ #define BLOCK_SIZE_BITS 10 @@ -38,21 +37,13 @@ struct files_stat_struct { int nr_free_files; /* read only */ int max_files; /* tunable */ }; -extern struct files_stat_struct files_stat; -extern int get_max_files(void); struct inodes_stat_t { int nr_inodes; int nr_unused; int dummy[5]; /* padding for sysctl ABI compatibility */ }; -extern struct inodes_stat_t inodes_stat; -extern int leases_enable, lease_break_time; - -#ifdef CONFIG_DNOTIFY -extern int dir_notify_enable; -#endif #define NR_FILE 8192 /* this can well be larger on a larger system */ @@ -63,18 +54,32 @@ extern int dir_notify_enable; #define MAY_ACCESS 16 #define MAY_OPEN 32 -#define FMODE_READ 1 -#define FMODE_WRITE 2 - -/* Internal kernel extensions */ -#define FMODE_LSEEK 4 -#define FMODE_PREAD 8 -#define FMODE_PWRITE FMODE_PREAD /* These go hand in hand */ +/* file is open for reading */ +#define FMODE_READ ((__force fmode_t)1) +/* file is open for writing */ +#define FMODE_WRITE ((__force fmode_t)2) +/* file is seekable */ +#define FMODE_LSEEK ((__force fmode_t)4) +/* file can be accessed using pread/pwrite */ +#define FMODE_PREAD ((__force fmode_t)8) +#define FMODE_PWRITE FMODE_PREAD /* These go hand in hand */ +/* File is opened for execution with sys_execve / sys_uselib */ +#define FMODE_EXEC ((__force fmode_t)16) +/* File is opened with O_NDELAY (only set for block devices) */ +#define FMODE_NDELAY ((__force fmode_t)32) +/* File is opened with O_EXCL (only set for block devices) */ +#define FMODE_EXCL ((__force fmode_t)64) +/* File is opened using open(.., 3, ..) and is writeable only for ioctls + (specialy hack for floppy.c) */ +#define FMODE_WRITE_IOCTL ((__force fmode_t)128) -/* File is being opened for execution. Primary users of this flag are - distributed filesystems that can use it to achieve correct ETXTBUSY - behavior for cross-node execution/opening_for_writing of files */ -#define FMODE_EXEC 16 +/* + * Don't update ctime and mtime. + * + * Currently a special hack for the XFS open_by_handle ioctl, but we'll + * hopefully graduate it to a proper O_CMTIME flag supported by open(2) soon. + */ +#define FMODE_NOCMTIME ((__force fmode_t)2048) #define RW_MASK 1 #define RWA_MASK 2 @@ -87,7 +92,8 @@ extern int dir_notify_enable; #define WRITE_SYNC (WRITE | (1 << BIO_RW_SYNC)) #define SWRITE_SYNC (SWRITE | (1 << BIO_RW_SYNC)) #define WRITE_BARRIER (WRITE | (1 << BIO_RW_BARRIER)) -#define WRITE_DISCARD (WRITE | (1 << BIO_RW_DISCARD)) +#define DISCARD_NOBARRIER (1 << BIO_RW_DISCARD) +#define DISCARD_BARRIER ((1 << BIO_RW_DISCARD) | (1 << BIO_RW_BARRIER)) #define SEL_IN 1 #define SEL_OUT 2 @@ -135,7 +141,7 @@ extern int dir_notify_enable; /* * Superblock flags that can be altered by MS_REMOUNT */ -#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK) +#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_I_VERSION) /* * Old magic mount flag and mask @@ -223,15 +229,19 @@ extern int dir_notify_enable; #define BLKTRACESTART _IO(0x12,116) #define BLKTRACESTOP _IO(0x12,117) #define BLKTRACETEARDOWN _IO(0x12,118) +#define BLKDISCARD _IO(0x12,119) #define BMAP_IOCTL 1 /* obsolete - kept for compatibility */ #define FIBMAP _IO(0x00,1) /* bmap access */ #define FIGETBSZ _IO(0x00,2) /* get the block size used for bmap */ +#define FIFREEZE _IOWR('X', 119, int) /* Freeze */ +#define FITHAW _IOWR('X', 120, int) /* Thaw */ #define FS_IOC_GETFLAGS _IOR('f', 1, long) #define FS_IOC_SETFLAGS _IOW('f', 2, long) #define FS_IOC_GETVERSION _IOR('v', 1, long) #define FS_IOC_SETVERSION _IOW('v', 2, long) +#define FS_IOC_FIEMAP _IOWR('f', 11, struct fiemap) #define FS_IOC32_GETFLAGS _IOR('f', 1, int) #define FS_IOC32_SETFLAGS _IOW('f', 2, int) #define FS_IOC32_GETVERSION _IOR('v', 1, int) @@ -292,6 +302,7 @@ extern int dir_notify_enable; #include #include #include +#include #include #include @@ -306,11 +317,21 @@ struct poll_table_struct; struct kstatfs; struct vm_area_struct; struct vfsmount; +struct cred; extern void __init inode_init(void); extern void __init inode_init_early(void); extern void __init files_init(unsigned long); +extern struct files_stat_struct files_stat; +extern int get_max_files(void); +extern int sysctl_nr_open; +extern struct inodes_stat_t inodes_stat; +extern int leases_enable, lease_break_time; +#ifdef CONFIG_DNOTIFY +extern int dir_notify_enable; +#endif + struct buffer_head; typedef int (get_block_t)(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create); @@ -404,6 +425,9 @@ enum positive_aop_returns { #define AOP_FLAG_UNINTERRUPTIBLE 0x0001 /* will not do a short write */ #define AOP_FLAG_CONT_EXPAND 0x0002 /* called from cont_expand */ +#define AOP_FLAG_NOFS 0x0004 /* used by filesystem to direct + * helper code (eg buffer layer) + * to clear GFP_FS from alloc */ /* * oh the beauties of C type declarations. @@ -480,13 +504,6 @@ struct address_space_operations { int (*readpages)(struct file *filp, struct address_space *mapping, struct list_head *pages, unsigned nr_pages); - /* - * ext3 requires that a successful prepare_write() call be followed - * by a commit_write() call - they must be balanced - */ - int (*prepare_write)(struct file *, struct page *, unsigned, unsigned); - int (*commit_write)(struct file *, struct page *, unsigned, unsigned); - int (*write_begin)(struct file *, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata); @@ -550,6 +567,7 @@ struct address_space { struct block_device { dev_t bd_dev; /* not a kdev_t - it's a search key */ struct inode * bd_inode; /* will die */ + struct super_block * bd_super; int bd_openers; struct mutex bd_mutex; /* open/close mutex */ struct semaphore bd_mount_sem; @@ -575,6 +593,11 @@ struct block_device { * care to not mess up bd_private for that case. */ unsigned long bd_private; + + /* The counter of freeze processes */ + int bd_fsfreeze_count; + /* Mutex for freeze */ + struct mutex bd_fsfreeze_mutex; }; /* @@ -821,10 +844,10 @@ struct file { const struct file_operations *f_op; atomic_long_t f_count; unsigned int f_flags; - mode_t f_mode; + fmode_t f_mode; loff_t f_pos; struct fown_struct f_owner; - unsigned int f_uid, f_gid; + const struct cred *f_cred; struct file_ra_state f_ra; u64 f_version; @@ -943,6 +966,14 @@ struct lock_manager_operations { int (*fl_change)(struct file_lock **, int); }; +struct lock_manager { + struct list_head list; +}; + +void locks_start_grace(struct lock_manager *); +void locks_end_grace(struct lock_manager *); +int locks_in_grace(void); + /* that will die - we need it for nfs_lock_info */ #include @@ -984,6 +1015,13 @@ struct file_lock { #include +extern void send_sigio(struct fown_struct *fown, int fd, int band); + +/* fs/sync.c */ +extern int do_sync_mapping_range(struct address_space *mapping, loff_t offset, + loff_t endbyte, unsigned int flags); + +#ifdef CONFIG_FILE_LOCKING extern int fcntl_getlk(struct file *, struct flock __user *); extern int fcntl_setlk(unsigned int, struct file *, unsigned int, struct flock __user *); @@ -994,14 +1032,9 @@ extern int fcntl_setlk64(unsigned int, struct file *, unsigned int, struct flock64 __user *); #endif -extern void send_sigio(struct fown_struct *fown, int fd, int band); extern int fcntl_setlease(unsigned int fd, struct file *filp, long arg); extern int fcntl_getlease(struct file *filp); -/* fs/sync.c */ -extern int do_sync_mapping_range(struct address_space *mapping, loff_t offset, - loff_t endbyte, unsigned int flags); - /* fs/locks.c */ extern void locks_init_lock(struct file_lock *); extern void locks_copy_lock(struct file_lock *, struct file_lock *); @@ -1023,7 +1056,37 @@ extern int vfs_setlease(struct file *, long, struct file_lock **); extern int lease_modify(struct file_lock **, int); extern int lock_may_read(struct inode *, loff_t start, unsigned long count); extern int lock_may_write(struct inode *, loff_t start, unsigned long count); -extern struct seq_operations locks_seq_operations; +#else /* !CONFIG_FILE_LOCKING */ +#define fcntl_getlk(a, b) ({ -EINVAL; }) +#define fcntl_setlk(a, b, c, d) ({ -EACCES; }) +#if BITS_PER_LONG == 32 +#define fcntl_getlk64(a, b) ({ -EINVAL; }) +#define fcntl_setlk64(a, b, c, d) ({ -EACCES; }) +#endif +#define fcntl_setlease(a, b, c) ({ 0; }) +#define fcntl_getlease(a) ({ 0; }) +#define locks_init_lock(a) ({ }) +#define __locks_copy_lock(a, b) ({ }) +#define locks_copy_lock(a, b) ({ }) +#define locks_remove_posix(a, b) ({ }) +#define locks_remove_flock(a) ({ }) +#define posix_test_lock(a, b) ({ 0; }) +#define posix_lock_file(a, b, c) ({ -ENOLCK; }) +#define posix_lock_file_wait(a, b) ({ -ENOLCK; }) +#define posix_unblock_lock(a, b) (-ENOENT) +#define vfs_test_lock(a, b) ({ 0; }) +#define vfs_lock_file(a, b, c, d) (-ENOLCK) +#define vfs_cancel_lock(a, b) ({ 0; }) +#define flock_lock_file_wait(a, b) ({ -ENOLCK; }) +#define __break_lease(a, b) ({ 0; }) +#define lease_get_mtime(a, b) ({ }) +#define generic_setlease(a, b, c) ({ -EINVAL; }) +#define vfs_setlease(a, b, c) ({ -EINVAL; }) +#define lease_modify(a, b) ({ -EINVAL; }) +#define lock_may_read(a, b, c) ({ 1; }) +#define lock_may_write(a, b, c) ({ 1; }) +#endif /* !CONFIG_FILE_LOCKING */ + struct fasync_struct { int magic; @@ -1078,7 +1141,6 @@ struct super_block { struct rw_semaphore s_umount; struct mutex s_lock; int s_count; - int s_syncing; int s_need_sync_fs; atomic_t s_active; #ifdef CONFIG_SECURITY @@ -1107,6 +1169,7 @@ struct super_block { char s_id[32]; /* Informational name */ void *s_fs_info; /* Filesystem private info */ + fmode_t s_mode; /* * The next field is for VFS *only*. No filesystems have any business @@ -1129,6 +1192,11 @@ struct super_block { * generic_show_options() */ char *s_options; + + /* + * storage for asynchronous operations + */ + struct list_head s_async_list; }; extern struct timespec current_fs_time(struct super_block *sb); @@ -1150,7 +1218,7 @@ enum { #define has_fs_excl() atomic_read(¤t->fs_excl) #define is_owner_or_cap(inode) \ - ((current->fsuid == (inode)->i_uid) || capable(CAP_FOWNER)) + ((current_fsuid() == (inode)->i_uid) || capable(CAP_FOWNER)) /* not quite ready to be deprecated, but... */ extern void lock_super(struct super_block *); @@ -1159,7 +1227,6 @@ extern void unlock_super(struct super_block *); /* * VFS helper functions.. */ -extern int vfs_permission(struct nameidata *, int); extern int vfs_create(struct inode *, struct dentry *, int, struct nameidata *); extern int vfs_mkdir(struct inode *, struct dentry *, int); extern int vfs_mknod(struct inode *, struct dentry *, int, dev_t); @@ -1180,6 +1247,20 @@ extern void dentry_unhash(struct dentry *dentry); extern int file_permission(struct file *, int); /* + * VFS FS_IOC_FIEMAP helper definitions. + */ +struct fiemap_extent_info { + unsigned int fi_flags; /* Flags as passed from user */ + unsigned int fi_extents_mapped; /* Number of mapped extents */ + unsigned int fi_extents_max; /* Size of fiemap_extent array */ + struct fiemap_extent *fi_extents_start; /* Start of fiemap_extent + * array */ +}; +int fiemap_fill_next_extent(struct fiemap_extent_info *info, u64 logical, + u64 phys, u64 len, u32 flags); +int fiemap_check_flags(struct fiemap_extent_info *fieinfo, u32 fs_flags); + +/* * File types * * NOTE! These match bits 12..15 of stat.st_mode @@ -1207,20 +1288,7 @@ int generic_osync_inode(struct inode *, struct address_space *, int); * to have different dirent layouts depending on the binary type. */ typedef int (*filldir_t)(void *, const char *, int, loff_t, u64, unsigned); - -struct block_device_operations { - int (*open) (struct inode *, struct file *); - int (*release) (struct inode *, struct file *); - int (*ioctl) (struct inode *, struct file *, unsigned, unsigned long); - long (*unlocked_ioctl) (struct file *, unsigned, unsigned long); - long (*compat_ioctl) (struct file *, unsigned, unsigned long); - int (*direct_access) (struct block_device *, sector_t, - void **, unsigned long *); - int (*media_changed) (struct gendisk *); - int (*revalidate_disk) (struct gendisk *); - int (*getgeo)(struct block_device *, struct hd_geometry *); - struct module *owner; -}; +struct block_device_operations; /* These macros are for out of kernel modules to test that * the kernel supports the unlocked_ioctl and compat_ioctl @@ -1256,7 +1324,6 @@ struct file_operations { ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int); unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long); int (*check_flags)(int); - int (*dir_notify)(struct file *filp, unsigned long arg); int (*flock) (struct file *, int, struct file_lock *); ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int); ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int); @@ -1288,6 +1355,8 @@ struct inode_operations { void (*truncate_range)(struct inode *, loff_t, loff_t); long (*fallocate)(struct inode *inode, int mode, loff_t offset, loff_t len); + int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, + u64 len); }; struct seq_file; @@ -1315,8 +1384,8 @@ struct super_operations { void (*put_super) (struct super_block *); void (*write_super) (struct super_block *); int (*sync_fs)(struct super_block *sb, int wait); - void (*write_super_lockfs) (struct super_block *); - void (*unlockfs) (struct super_block *); + int (*freeze_fs) (struct super_block *); + int (*unfreeze_fs) (struct super_block *); int (*statfs) (struct dentry *, struct kstatfs *); int (*remount_fs) (struct super_block *, int *, char *); void (*clear_inode) (struct inode *); @@ -1328,6 +1397,7 @@ struct super_operations { ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t); ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t); #endif + int (*bdev_try_to_free_page)(struct super_block*, struct page*, gfp_t); }; /* @@ -1532,7 +1602,6 @@ extern int get_sb_pseudo(struct file_system_type *, char *, struct vfsmount *mnt); extern int simple_set_mnt(struct vfsmount *mnt, struct super_block *sb); int __put_super_and_need_restart(struct super_block *sb); -void unnamed_dev_init(void); /* Alas, no aliases. Too much hassle with bringing module.h everywhere */ #define fops_get(fops) \ @@ -1555,9 +1624,12 @@ extern int vfs_statfs(struct dentry *, struct kstatfs *); /* /sys/fs */ extern struct kobject *fs_kobj; +extern int rw_verify_area(int, struct file *, loff_t *, size_t); + #define FLOCK_VERIFY_READ 1 #define FLOCK_VERIFY_WRITE 2 +#ifdef CONFIG_FILE_LOCKING extern int locks_mandatory_locked(struct inode *); extern int locks_mandatory_area(int, struct inode *, struct file *, loff_t, size_t); @@ -1588,8 +1660,6 @@ static inline int locks_verify_locked(struct inode *inode) return 0; } -extern int rw_verify_area(int, struct file *, loff_t *, size_t); - static inline int locks_verify_truncate(struct inode *inode, struct file *filp, loff_t size) @@ -1610,6 +1680,15 @@ static inline int break_lease(struct inode *inode, unsigned int mode) return __break_lease(inode, mode); return 0; } +#else /* !CONFIG_FILE_LOCKING */ +#define locks_mandatory_locked(a) ({ 0; }) +#define locks_mandatory_area(a, b, c, d, e) ({ 0; }) +#define __mandatory_lock(a) ({ 0; }) +#define mandatory_lock(a) ({ 0; }) +#define locks_verify_locked(a) ({ 0; }) +#define locks_verify_truncate(a, b, c) ({ 0; }) +#define break_lease(a, b) ({ 0; }) +#endif /* CONFIG_FILE_LOCKING */ /* fs/open.c */ @@ -1618,7 +1697,8 @@ extern int do_truncate(struct dentry *, loff_t start, unsigned int time_attrs, extern long do_sys_open(int dfd, const char __user *filename, int flags, int mode); extern struct file *filp_open(const char *, int, int); -extern struct file * dentry_open(struct dentry *, struct vfsmount *, int); +extern struct file * dentry_open(struct dentry *, struct vfsmount *, int, + const struct cred *); extern int filp_close(struct file *, fl_owner_t id); extern char * getname(const char __user *); @@ -1643,7 +1723,7 @@ extern struct block_device *bdget(dev_t); extern void bd_set_size(struct block_device *, loff_t size); extern void bd_forget(struct inode *inode); extern void bdput(struct block_device *); -extern struct block_device *open_by_devnum(dev_t, unsigned); +extern struct block_device *open_by_devnum(dev_t, fmode_t); #else static inline void bd_forget(struct inode *inode) {} #endif @@ -1653,13 +1733,10 @@ extern const struct file_operations bad_sock_fops; extern const struct file_operations def_fifo_fops; #ifdef CONFIG_BLOCK extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long); -extern int blkdev_ioctl(struct inode *, struct file *, unsigned, unsigned long); -extern int blkdev_driver_ioctl(struct inode *inode, struct file *file, - struct gendisk *disk, unsigned cmd, - unsigned long arg); +extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long); extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long); -extern int blkdev_get(struct block_device *, mode_t, unsigned); -extern int blkdev_put(struct block_device *); +extern int blkdev_get(struct block_device *, fmode_t); +extern int blkdev_put(struct block_device *, fmode_t); extern int bd_claim(struct block_device *, void *); extern void bd_release(struct block_device *); #ifdef CONFIG_SYSFS @@ -1683,15 +1760,17 @@ extern void chrdev_show(struct seq_file *,off_t); /* fs/block_dev.c */ #define BDEVNAME_SIZE 32 /* Largest string for a blockdev identifier */ +#define BDEVT_SIZE 10 /* Largest string for MAJ:MIN for blkdev */ #ifdef CONFIG_BLOCK #define BLKDEV_MAJOR_HASH_SIZE 255 extern const char *__bdevname(dev_t, char *buffer); extern const char *bdevname(struct block_device *bdev, char *buffer); extern struct block_device *lookup_bdev(const char *); -extern struct block_device *open_bdev_excl(const char *, int, void *); -extern void close_bdev_excl(struct block_device *); +extern struct block_device *open_bdev_exclusive(const char *, fmode_t, void *); +extern void close_bdev_exclusive(struct block_device *, fmode_t); extern void blkdev_show(struct seq_file *,off_t); + #else #define BLKDEV_MAJOR_HASH_SIZE 0 #endif @@ -1719,6 +1798,9 @@ extern int fs_may_remount_ro(struct super_block *); */ #define bio_data_dir(bio) ((bio)->bi_rw & 1) +extern void check_disk_size_change(struct gendisk *disk, + struct block_device *bdev); +extern int revalidate_disk(struct gendisk *); extern int check_disk_change(struct block_device *); extern int __invalidate_device(struct block_device *); extern int invalidate_partition(struct gendisk *, int); @@ -1761,7 +1843,7 @@ extern int __filemap_fdatawrite_range(struct address_space *mapping, extern int filemap_fdatawrite_range(struct address_space *mapping, loff_t start, loff_t end); -extern long do_fsync(struct file *file, int datasync); +extern int vfs_fsync(struct file *file, struct dentry *dentry, int datasync); extern void sync_supers(void); extern void sync_filesystems(int wait); extern void __fsync_super(struct super_block *sb); @@ -1777,6 +1859,11 @@ extern int inode_permission(struct inode *, int); extern int generic_permission(struct inode *, int, int (*check_acl)(struct inode *, int)); +static inline bool execute_ok(struct inode *inode) +{ + return (inode->i_mode & S_IXUGO) || S_ISDIR(inode->i_mode); +} + extern int get_write_access(struct inode *); extern int deny_write_access(struct file *); static inline void put_write_access(struct inode * inode) @@ -1796,7 +1883,7 @@ extern void free_write_pipe(struct file *); extern struct file *do_filp_open(int dfd, const char *pathname, int open_flag, int mode); -extern int may_open(struct nameidata *, int, int); +extern int may_open(struct path *, int, int); extern int kernel_read(struct file *, unsigned long, char *, unsigned long); extern struct file * open_exec(const char *); @@ -1812,7 +1899,9 @@ extern loff_t default_llseek(struct file *file, loff_t offset, int origin); extern loff_t vfs_llseek(struct file *file, loff_t offset, int origin); +extern struct inode * inode_init_always(struct super_block *, struct inode *); extern void inode_init_once(struct inode *); +extern void inode_add_to_lists(struct super_block *, struct inode *); extern void iput(struct inode *); extern struct inode * igrab(struct inode *); extern ino_t iunique(struct super_block *, ino_t); @@ -1829,6 +1918,8 @@ extern struct inode *ilookup(struct super_block *sb, unsigned long ino); extern struct inode * iget5_locked(struct super_block *, unsigned long, int (*test)(struct inode *, void *), int (*set)(struct inode *, void *), void *); extern struct inode * iget_locked(struct super_block *, unsigned long); +extern int insert_inode_locked4(struct inode *, unsigned long, int (*test)(struct inode *, void *), void *); +extern int insert_inode_locked(struct inode *); extern void unlock_new_inode(struct inode *); extern void __iget(struct inode * inode); @@ -1960,7 +2051,7 @@ extern int page_readlink(struct dentry *, char __user *, int); extern void *page_follow_link_light(struct dentry *, struct nameidata *); extern void page_put_link(struct dentry *, struct nameidata *, void *); extern int __page_symlink(struct inode *inode, const char *symname, int len, - gfp_t gfp_mask); + int nofs); extern int page_symlink(struct inode *inode, const char *symname, int len); extern const struct inode_operations page_symlink_inode_operations; extern int generic_readlink(struct dentry *, char __user *, int); @@ -1981,6 +2072,12 @@ extern int vfs_fstat(unsigned int, struct kstat *); extern int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd, unsigned long arg); +extern int __generic_block_fiemap(struct inode *inode, + struct fiemap_extent_info *fieinfo, u64 start, + u64 len, get_block_t *get_block); +extern int generic_block_fiemap(struct inode *inode, + struct fiemap_extent_info *fieinfo, u64 start, + u64 len, get_block_t *get_block); extern void get_filesystem(struct file_system_type *fs); extern void put_filesystem(struct file_system_type *fs);