diff options
Diffstat (limited to 'fs/ubifs/ubifs.h')
| -rw-r--r-- | fs/ubifs/ubifs.h | 372 |
1 files changed, 9 insertions, 363 deletions
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index c025d34825..d655cfaac4 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -34,8 +34,16 @@ #include <common.h> #include <malloc.h> #include <lzo.h> +#include <linux/fs.h> +#include <linux/pagemap.h> +#include <linux/stat.h> +#include <linux/dcache.h> +#include <linux/mount.h> +#include <linux/path.h> +#include <linux/sched.h> +#include <linux/spinlock.h> +#include <linux/mutex.h> #include <linux/ctype.h> -#include <linux/time.h> #include <linux/math64.h> #include <linux/rbtree.h> #include <linux/err.h> @@ -56,8 +64,6 @@ extern unsigned int ubifs_msg_flags; extern unsigned int ubifs_chk_flags; extern unsigned int ubifs_tst_flags; -#define pgoff_t unsigned long - /* * We "simulate" the Linux page struct much simpler here */ @@ -77,371 +83,11 @@ void iput(struct inode *inode); #define atomic_long_dec(a) #define atomic_long_sub(a, b) -/* linux/include/time.h */ - -struct timespec { - time_t tv_sec; /* seconds */ - long tv_nsec; /* nanoseconds */ -}; - -/* linux/include/dcache.h */ - -/* - * "quick string" -- eases parameter passing, but more importantly - * saves "metadata" about the string (ie length and the hash). - * - * hash comes first so it snuggles against d_parent in the - * dentry. - */ -struct qstr { - unsigned int hash; - unsigned int len; - const char *name; -}; - -struct inode { - struct hlist_node i_hash; - struct list_head i_list; - struct list_head i_sb_list; - struct list_head i_dentry; - unsigned long i_ino; - unsigned int i_nlink; - uid_t i_uid; - gid_t i_gid; - dev_t i_rdev; - u64 i_version; - loff_t i_size; -#ifdef __NEED_I_SIZE_ORDERED - seqcount_t i_size_seqcount; -#endif - struct timespec i_atime; - struct timespec i_mtime; - struct timespec i_ctime; - unsigned int i_blkbits; - unsigned short i_bytes; - umode_t i_mode; - spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */ - struct mutex i_mutex; - struct rw_semaphore i_alloc_sem; - const struct inode_operations *i_op; - const struct file_operations *i_fop; /* former ->i_op->default_file_ops */ - struct super_block *i_sb; - struct file_lock *i_flock; -#ifdef CONFIG_QUOTA - struct dquot *i_dquot[MAXQUOTAS]; -#endif - struct list_head i_devices; - int i_cindex; - - __u32 i_generation; - -#ifdef CONFIG_DNOTIFY - unsigned long i_dnotify_mask; /* Directory notify events */ - struct dnotify_struct *i_dnotify; /* for directory notifications */ -#endif - -#ifdef CONFIG_INOTIFY - struct list_head inotify_watches; /* watches on this inode */ - struct mutex inotify_mutex; /* protects the watches list */ -#endif - - unsigned long i_state; - unsigned long dirtied_when; /* jiffies of first dirtying */ - - unsigned int i_flags; - -#ifdef CONFIG_SECURITY - void *i_security; -#endif - void *i_private; /* fs or device private pointer */ -}; - -struct super_block { - struct list_head s_list; /* Keep this first */ - dev_t s_dev; /* search index; _not_ kdev_t */ - unsigned long s_blocksize; - unsigned char s_blocksize_bits; - unsigned char s_dirt; - unsigned long long s_maxbytes; /* Max file size */ - struct file_system_type *s_type; - const struct super_operations *s_op; - struct dquot_operations *dq_op; - struct quotactl_ops *s_qcop; - const struct export_operations *s_export_op; - unsigned long s_flags; - unsigned long s_magic; - struct dentry *s_root; - struct rw_semaphore s_umount; - struct mutex s_lock; - int s_count; - int s_syncing; - int s_need_sync_fs; -#ifdef CONFIG_SECURITY - void *s_security; -#endif - struct xattr_handler **s_xattr; - - struct list_head s_inodes; /* all inodes */ - struct list_head s_dirty; /* dirty inodes */ - struct list_head s_io; /* parked for writeback */ - struct list_head s_more_io; /* parked for more writeback */ - struct hlist_head s_anon; /* anonymous dentries for (nfs) exporting */ - struct list_head s_files; - /* s_dentry_lru and s_nr_dentry_unused are protected by dcache_lock */ - struct list_head s_dentry_lru; /* unused dentry lru */ - int s_nr_dentry_unused; /* # of dentry on lru */ - - struct block_device *s_bdev; - struct mtd_info *s_mtd; - struct list_head s_instances; - - int s_frozen; - wait_queue_head_t s_wait_unfrozen; - - char s_id[32]; /* Informational name */ - - void *s_fs_info; /* Filesystem private info */ - - /* - * The next field is for VFS *only*. No filesystems have any business - * even looking at it. You had been warned. - */ - struct mutex s_vfs_rename_mutex; /* Kludge */ - - /* Granularity of c/m/atime in ns. - Cannot be worse than a second */ - u32 s_time_gran; - - /* - * Filesystem subtype. If non-empty the filesystem type field - * in /proc/mounts will be "type.subtype" - */ - char *s_subtype; - - /* - * Saved mount options for lazy filesystems using - * generic_show_options() - */ - char *s_options; -}; - -struct file_system_type { - const char *name; - int fs_flags; - int (*get_sb) (struct file_system_type *, int, - const char *, void *, struct vfsmount *); - void (*kill_sb) (struct super_block *); - struct module *owner; - struct file_system_type * next; - struct list_head fs_supers; -}; - -struct vfsmount { - struct list_head mnt_hash; - struct vfsmount *mnt_parent; /* fs we are mounted on */ - struct dentry *mnt_mountpoint; /* dentry of mountpoint */ - struct dentry *mnt_root; /* root of the mounted tree */ - struct super_block *mnt_sb; /* pointer to superblock */ - struct list_head mnt_mounts; /* list of children, anchored here */ - struct list_head mnt_child; /* and going through their mnt_child */ - int mnt_flags; - /* 4 bytes hole on 64bits arches */ - const char *mnt_devname; /* Name of device e.g. /dev/dsk/hda1 */ - struct list_head mnt_list; - struct list_head mnt_expire; /* link in fs-specific expiry list */ - struct list_head mnt_share; /* circular list of shared mounts */ - struct list_head mnt_slave_list;/* list of slave mounts */ - struct list_head mnt_slave; /* slave list entry */ - struct vfsmount *mnt_master; /* slave is on master->mnt_slave_list */ - struct mnt_namespace *mnt_ns; /* containing namespace */ - int mnt_id; /* mount identifier */ - int mnt_group_id; /* peer group identifier */ - /* - * We put mnt_count & mnt_expiry_mark at the end of struct vfsmount - * to let these frequently modified fields in a separate cache line - * (so that reads of mnt_flags wont ping-pong on SMP machines) - */ - int mnt_expiry_mark; /* true if marked for expiry */ - int mnt_pinned; - int mnt_ghosts; - /* - * This value is not stable unless all of the mnt_writers[] spinlocks - * are held, and all mnt_writer[]s on this mount have 0 as their ->count - */ -}; - -struct path { - struct vfsmount *mnt; - struct dentry *dentry; -}; - -struct file { - struct path f_path; -#define f_dentry f_path.dentry -#define f_vfsmnt f_path.mnt - const struct file_operations *f_op; - unsigned int f_flags; - loff_t f_pos; - unsigned int f_uid, f_gid; - - u64 f_version; -#ifdef CONFIG_SECURITY - void *f_security; -#endif - /* needed for tty driver, and maybe others */ - void *private_data; - -#ifdef CONFIG_EPOLL - /* Used by fs/eventpoll.c to link all the hooks to this file */ - struct list_head f_ep_links; - spinlock_t f_ep_lock; -#endif /* #ifdef CONFIG_EPOLL */ -#ifdef CONFIG_DEBUG_WRITECOUNT - unsigned long f_mnt_write_state; -#endif -}; - /* * get_seconds() not really needed in the read-only implmentation */ #define get_seconds() 0 -/* 4k page size */ -#define PAGE_CACHE_SHIFT 12 -#define PAGE_CACHE_SIZE (1 << PAGE_CACHE_SHIFT) - -/* Page cache limit. The filesystems should put that into their s_maxbytes - limits, otherwise bad things can happen in VM. */ -#if BITS_PER_LONG==32 -#define MAX_LFS_FILESIZE (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1) -#elif BITS_PER_LONG==64 -#define MAX_LFS_FILESIZE 0x7fffffffffffffffUL -#endif - -/* - * These are the fs-independent mount-flags: up to 32 flags are supported - */ -#define MS_RDONLY 1 /* Mount read-only */ -#define MS_NOSUID 2 /* Ignore suid and sgid bits */ -#define MS_NODEV 4 /* Disallow access to device special files */ -#define MS_NOEXEC 8 /* Disallow program execution */ -#define MS_SYNCHRONOUS 16 /* Writes are synced at once */ -#define MS_REMOUNT 32 /* Alter flags of a mounted FS */ -#define MS_MANDLOCK 64 /* Allow mandatory locks on an FS */ -#define MS_DIRSYNC 128 /* Directory modifications are synchronous */ -#define MS_NOATIME 1024 /* Do not update access times. */ -#define MS_NODIRATIME 2048 /* Do not update directory access times */ -#define MS_BIND 4096 -#define MS_MOVE 8192 -#define MS_REC 16384 -#define MS_VERBOSE 32768 /* War is peace. Verbosity is silence. - MS_VERBOSE is deprecated. */ -#define MS_SILENT 32768 -#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */ -#define MS_UNBINDABLE (1<<17) /* change to unbindable */ -#define MS_PRIVATE (1<<18) /* change to private */ -#define MS_SLAVE (1<<19) /* change to slave */ -#define MS_SHARED (1<<20) /* change to shared */ -#define MS_RELATIME (1<<21) /* Update atime relative to mtime/ctime. */ -#define MS_KERNMOUNT (1<<22) /* this is a kern_mount call */ -#define MS_I_VERSION (1<<23) /* Update inode I_version field */ -#define MS_ACTIVE (1<<30) -#define MS_NOUSER (1<<31) - -#define I_NEW 8 - -/* Inode flags - they have nothing to superblock flags now */ - -#define S_SYNC 1 /* Writes are synced at once */ -#define S_NOATIME 2 /* Do not update access times */ -#define S_APPEND 4 /* Append-only file */ -#define S_IMMUTABLE 8 /* Immutable file */ -#define S_DEAD 16 /* removed, but still open directory */ -#define S_NOQUOTA 32 /* Inode is not counted to quota */ -#define S_DIRSYNC 64 /* Directory modifications are synchronous */ -#define S_NOCMTIME 128 /* Do not update file c/mtime */ -#define S_SWAPFILE 256 /* Do not truncate: swapon got its bmaps */ -#define S_PRIVATE 512 /* Inode is fs-internal */ - -/* include/linux/stat.h */ - -#define S_IFMT 00170000 -#define S_IFSOCK 0140000 -#define S_IFLNK 0120000 -#define S_IFREG 0100000 -#define S_IFBLK 0060000 -#define S_IFDIR 0040000 -#define S_IFCHR 0020000 -#define S_IFIFO 0010000 -#define S_ISUID 0004000 -#define S_ISGID 0002000 -#define S_ISVTX 0001000 - -/* include/linux/fs.h */ - -/* - * File types - * - * NOTE! These match bits 12..15 of stat.st_mode - * (ie "(i_mode >> 12) & 15"). - */ -#define DT_UNKNOWN 0 -#define DT_FIFO 1 -#define DT_CHR 2 -#define DT_DIR 4 -#define DT_BLK 6 -#define DT_REG 8 -#define DT_LNK 10 -#define DT_SOCK 12 -#define DT_WHT 14 - -#define I_DIRTY_SYNC 1 -#define I_DIRTY_DATASYNC 2 -#define I_DIRTY_PAGES 4 -#define I_NEW 8 -#define I_WILL_FREE 16 -#define I_FREEING 32 -#define I_CLEAR 64 -#define __I_LOCK 7 -#define I_LOCK (1 << __I_LOCK) -#define __I_SYNC 8 -#define I_SYNC (1 << __I_SYNC) - -#define I_DIRTY (I_DIRTY_SYNC | I_DIRTY_DATASYNC | I_DIRTY_PAGES) - -/* linux/include/dcache.h */ - -#define DNAME_INLINE_LEN_MIN 36 - -struct dentry { - unsigned int d_flags; /* protected by d_lock */ - spinlock_t d_lock; /* per dentry lock */ - struct inode *d_inode; /* Where the name belongs to - NULL is - * negative */ - /* - * The next three fields are touched by __d_lookup. Place them here - * so they all fit in a cache line. - */ - struct hlist_node d_hash; /* lookup hash list */ - struct dentry *d_parent; /* parent directory */ - struct qstr d_name; - - struct list_head d_lru; /* LRU list */ - /* - * d_child and d_rcu can share memory - */ - struct list_head d_subdirs; /* our children */ - struct list_head d_alias; /* inode alias list */ - unsigned long d_time; /* used by d_revalidate */ - struct super_block *d_sb; /* The root of the dentry tree */ - void *d_fsdata; /* fs-specific data */ -#ifdef CONFIG_PROFILING - struct dcookie_struct *d_cookie; /* cookie, if any */ -#endif - int d_mounted; - unsigned char d_iname[DNAME_INLINE_LEN_MIN]; /* small names */ -}; - static inline ino_t parent_ino(struct dentry *dentry) { ino_t res; |