fat: split include/msdos_fs.h

This splits __KERNEL__ stuff in include/msdos_fs.h into fs/fat/fat.h.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 274 deletions

diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h
index ba63858056c7..0982fb47a90d 100644
--- a/include/linux/msdos_fs.h
+++ b/include/linux/msdos_fs.h
@@ -167,282 +167,10 @@ struct msdos_dir_slot {
 };
 
 #ifdef __KERNEL__
-
-#include <linux/buffer_head.h>
-#include <linux/string.h>
-#include <linux/nls.h>
-#include <linux/fs.h>
-#include <linux/mutex.h>
-
-/*
- * vfat shortname flags
- */
-#define VFAT_SFN_DISPLAY_LOWER  0x0001 /* convert to lowercase for display */
-#define VFAT_SFN_DISPLAY_WIN95  0x0002 /* emulate win95 rule for display */
-#define VFAT_SFN_DISPLAY_WINNT  0x0004 /* emulate winnt rule for display */
-#define VFAT_SFN_CREATE_WIN95   0x0100 /* emulate win95 rule for create */
-#define VFAT_SFN_CREATE_WINNT   0x0200 /* emulate winnt rule for create */
-
-struct fat_mount_options {
-        uid_t fs_uid;
-        gid_t fs_gid;
-        unsigned short fs_fmask;
-        unsigned short fs_dmask;
-        unsigned short codepage;  /* Codepage for shortname conversions */
-        char *iocharset;          /* Charset used for filename input/display */
-        unsigned short shortname; /* flags for shortname display/create rule */
-        unsigned char name_check; /* r = relaxed, n = normal, s = strict */
-        unsigned short allow_utime;/* permission for setting the [am]time */
-        unsigned quiet:1,         /* set = fake successful chmods and chowns */
-                 showexec:1,      /* set = only set x bit for com/exe/bat */
-                 sys_immutable:1, /* set = system files are immutable */
-                 dotsOK:1,        /* set = hidden and system files are named '.filename' */
-                 isvfat:1,        /* 0=no vfat long filename support, 1=vfat support */
-                 utf8:1,          /* Use of UTF-8 character set (Default) */
-                 unicode_xlate:1, /* create escape sequences for unhandled Unicode */
-                 numtail:1,       /* Does first alias have a numeric '~1' type tail? */
-                 flush:1,         /* write things quickly */
-                 nocase:1,        /* Does this need case conversion? 0=need case conversion*/
-                 usefree:1,       /* Use free_clusters for FAT32 */
-                 tz_utc:1;        /* Filesystem timestamps are in UTC */
-};
-
-#define FAT_HASH_BITS   8
-#define FAT_HASH_SIZE   (1UL << FAT_HASH_BITS)
-#define FAT_HASH_MASK   (FAT_HASH_SIZE-1)
-
-/*
- * MS-DOS file system in-core superblock data
- */
-struct msdos_sb_info {
-        unsigned short sec_per_clus; /* sectors/cluster */
-        unsigned short cluster_bits; /* log2(cluster_size) */
-        unsigned int cluster_size;   /* cluster size */
-        unsigned char fats,fat_bits; /* number of FATs, FAT bits (12 or 16) */
-        unsigned short fat_start;
-        unsigned long fat_length;    /* FAT start & length (sec.) */
-        unsigned long dir_start;
-        unsigned short dir_entries;  /* root dir start & entries */
-        unsigned long data_start;    /* first data sector */
-        unsigned long max_cluster;   /* maximum cluster number */
-        unsigned long root_cluster;  /* first cluster of the root directory */
-        unsigned long fsinfo_sector; /* sector number of FAT32 fsinfo */
-        struct mutex fat_lock;
-        unsigned int prev_free;      /* previously allocated cluster number */
-        unsigned int free_clusters;  /* -1 if undefined */
-        unsigned int free_clus_valid; /* is free_clusters valid? */
-        struct fat_mount_options options;
-        struct nls_table *nls_disk;  /* Codepage used on disk */
-        struct nls_table *nls_io;    /* Charset used for input and display */
-        const void *dir_ops;                 /* Opaque; default directory operations */
-        int dir_per_block;           /* dir entries per block */
-        int dir_per_block_bits;      /* log2(dir_per_block) */
-
-        int fatent_shift;
-        struct fatent_operations *fatent_ops;
-
-        spinlock_t inode_hash_lock;
-        struct hlist_head inode_hashtable[FAT_HASH_SIZE];
-};
-
-#define FAT_CACHE_VALID 0       /* special case for valid cache */
-
-/*
- * MS-DOS file system inode data in memory
- */
-struct msdos_inode_info {
-        spinlock_t cache_lru_lock;
-        struct list_head cache_lru;
-        int nr_caches;
-        /* for avoiding the race between fat_free() and fat_get_cluster() */
-        unsigned int cache_valid_id;
-
-        loff_t mmu_private;
-        int i_start;            /* first cluster or 0 */
-        int i_logstart;         /* logical first cluster */
-        int i_attrs;            /* unused attribute bits */
-        loff_t i_pos;           /* on-disk position of directory entry or 0 */
-        struct hlist_node i_fat_hash;   /* hash by i_location */
-        struct inode vfs_inode;
-};
-
-struct fat_slot_info {
-        loff_t i_pos;           /* on-disk position of directory entry */
-        loff_t slot_off;        /* offset for slot or de start */
-        int nr_slots;           /* number of slots + 1(de) in filename */
-        struct msdos_dir_entry *de;
-        struct buffer_head *bh;
-};
-
-static inline struct msdos_sb_info *MSDOS_SB(struct super_block *sb)
-{
-        return sb->s_fs_info;
-}
-
-static inline struct msdos_inode_info *MSDOS_I(struct inode *inode)
-{
-        return container_of(inode, struct msdos_inode_info, vfs_inode);
-}
-
-/* Return the FAT attribute byte for this inode */
-static inline u8 fat_attr(struct inode *inode)
-{
-        return ((inode->i_mode & S_IWUGO) ? ATTR_NONE : ATTR_RO) |
-                (S_ISDIR(inode->i_mode) ? ATTR_DIR : ATTR_NONE) |
-                MSDOS_I(inode)->i_attrs;
-}
-
-static inline unsigned char fat_checksum(const __u8 *name)
-{
-        unsigned char s = name[0];
-        s = (s<<7) + (s>>1) + name[1];  s = (s<<7) + (s>>1) + name[2];
-        s = (s<<7) + (s>>1) + name[3];  s = (s<<7) + (s>>1) + name[4];
-        s = (s<<7) + (s>>1) + name[5];  s = (s<<7) + (s>>1) + name[6];
-        s = (s<<7) + (s>>1) + name[7];  s = (s<<7) + (s>>1) + name[8];
-        s = (s<<7) + (s>>1) + name[9];  s = (s<<7) + (s>>1) + name[10];
-        return s;
-}
-
-static inline sector_t fat_clus_to_blknr(struct msdos_sb_info *sbi, int clus)
-{
-        return ((sector_t)clus - FAT_START_ENT) * sbi->sec_per_clus
-                + sbi->data_start;
-}
-
-static inline void fat16_towchar(wchar_t *dst, const __u8 *src, size_t len)
-{
-#ifdef __BIG_ENDIAN
-        while (len--) {
-                *dst++ = src[0] | (src[1] << 8);
-                src += 2;
-        }
-#else
-        memcpy(dst, src, len * 2);
-#endif
-}
-
-static inline void fatwchar_to16(__u8 *dst, const wchar_t *src, size_t len)
-{
-#ifdef __BIG_ENDIAN
-        while (len--) {
-                dst[0] = *src & 0x00FF;
-                dst[1] = (*src & 0xFF00) >> 8;
-                dst += 2;
-                src++;
-        }
-#else
-        memcpy(dst, src, len * 2);
-#endif
-}
-
 /* media of boot sector */
 static inline int fat_valid_media(u8 media)
 {
         return 0xf8 <= media || media == 0xf0;
 }
-
-/* fat/cache.c */
-extern void fat_cache_inval_inode(struct inode *inode);
-extern int fat_get_cluster(struct inode *inode, int cluster,
-                           int *fclus, int *dclus);
-extern int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys,
-                    unsigned long *mapped_blocks);
-
-/* fat/dir.c */
-extern const struct file_operations fat_dir_operations;
-extern int fat_search_long(struct inode *inode, const unsigned char *name,
-                           int name_len, struct fat_slot_info *sinfo);
-extern int fat_dir_empty(struct inode *dir);
-extern int fat_subdirs(struct inode *dir);
-extern int fat_scan(struct inode *dir, const unsigned char *name,
-                    struct fat_slot_info *sinfo);
-extern int fat_get_dotdot_entry(struct inode *dir, struct buffer_head **bh,
-                                struct msdos_dir_entry **de, loff_t *i_pos);
-extern int fat_alloc_new_dir(struct inode *dir, struct timespec *ts);
-extern int fat_add_entries(struct inode *dir, void *slots, int nr_slots,
-                           struct fat_slot_info *sinfo);
-extern int fat_remove_entries(struct inode *dir, struct fat_slot_info *sinfo);
-
-/* fat/fatent.c */
-struct fat_entry {
-        int entry;
-        union {
-                u8 *ent12_p[2];
-                __le16 *ent16_p;
-                __le32 *ent32_p;
-        } u;
-        int nr_bhs;
-        struct buffer_head *bhs[2];
-};
-
-static inline void fatent_init(struct fat_entry *fatent)
-{
-        fatent->nr_bhs = 0;
-        fatent->entry = 0;
-        fatent->u.ent32_p = NULL;
-        fatent->bhs[0] = fatent->bhs[1] = NULL;
-}
-
-static inline void fatent_set_entry(struct fat_entry *fatent, int entry)
-{
-        fatent->entry = entry;
-        fatent->u.ent32_p = NULL;
-}
-
-static inline void fatent_brelse(struct fat_entry *fatent)
-{
-        int i;
-        fatent->u.ent32_p = NULL;
-        for (i = 0; i < fatent->nr_bhs; i++)
-                brelse(fatent->bhs[i]);
-        fatent->nr_bhs = 0;
-        fatent->bhs[0] = fatent->bhs[1] = NULL;
-}
-
-extern void fat_ent_access_init(struct super_block *sb);
-extern int fat_ent_read(struct inode *inode, struct fat_entry *fatent,
-                        int entry);
-extern int fat_ent_write(struct inode *inode, struct fat_entry *fatent,
-                         int new, int wait);
-extern int fat_alloc_clusters(struct inode *inode, int *cluster,
-                              int nr_cluster);
-extern int fat_free_clusters(struct inode *inode, int cluster);
-extern int fat_count_free_clusters(struct super_block *sb);
-
-/* fat/file.c */
-extern int fat_generic_ioctl(struct inode *inode, struct file *filp,
-                             unsigned int cmd, unsigned long arg);
-extern const struct file_operations fat_file_operations;
-extern const struct inode_operations fat_file_inode_operations;
-extern int fat_setattr(struct dentry * dentry, struct iattr * attr);
-extern void fat_truncate(struct inode *inode);
-extern int fat_getattr(struct vfsmount *mnt, struct dentry *dentry,
-                       struct kstat *stat);
-
-/* fat/inode.c */
-extern void fat_attach(struct inode *inode, loff_t i_pos);
-extern void fat_detach(struct inode *inode);
-extern struct inode *fat_iget(struct super_block *sb, loff_t i_pos);
-extern struct inode *fat_build_inode(struct super_block *sb,
-                        struct msdos_dir_entry *de, loff_t i_pos);
-extern int fat_sync_inode(struct inode *inode);
-extern int fat_fill_super(struct super_block *sb, void *data, int silent,
-                        const struct inode_operations *fs_dir_inode_ops, int isvfat);
-
-extern int fat_flush_inodes(struct super_block *sb, struct inode *i1,
-                            struct inode *i2);
-/* fat/misc.c */
-extern void fat_fs_panic(struct super_block *s, const char *fmt, ...);
-extern void fat_clusters_flush(struct super_block *sb);
-extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster);
-extern int date_dos2unix(unsigned short time, unsigned short date, int tz_utc);
-extern void fat_date_unix2dos(int unix_date, __le16 *time, __le16 *date,
-                              int tz_utc);
-extern int fat_sync_bhs(struct buffer_head **bhs, int nr_bhs);
-
-int fat_cache_init(void);
-void fat_cache_destroy(void);
-
-#endif /* __KERNEL__ */
-
-#endif
+#endif /* !__KERNEL__ */
+#endif /* !_LINUX_MSDOS_FS_H */