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linux/fs/udf/udfdecl.h
Arjan van de Ven 4b6f5d20b0 [PATCH] Make most file operations structs in fs/ const 
This is a conversion to make the various file_operations structs in fs/
const.  Basically a regexp job, with a few manual fixups

The goal is both to increase correctness (harder to accidentally write to
shared datastructures) and reducing the false sharing of cachelines with
things that get dirty in .data (while .rodata is nicely read only and thus
cache clean)

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-28 09:16:06 -08:00

167 lines
6.5 KiB
C
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#ifndef __UDF_DECL_H
#define __UDF_DECL_H
#include <linux/udf_fs.h>
#include "ecma_167.h"
#include "osta_udf.h"
#include <linux/fs.h>
#include <linux/config.h>
#include <linux/types.h>
#include <linux/udf_fs_i.h>
#include <linux/udf_fs_sb.h>
#include <linux/buffer_head.h>
#include "udfend.h"
#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
#define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
#define UDF_EXTENT_FLAG_MASK 0xC0000000
#define UDF_NAME_PAD 4
#define UDF_NAME_LEN 256
#define UDF_PATH_LEN 1023
#define udf_file_entry_alloc_offset(inode)\
(UDF_I_USE(inode) ?\
sizeof(struct unallocSpaceEntry) :\
((UDF_I_EFE(inode) ?\
sizeof(struct extendedFileEntry) :\
sizeof(struct fileEntry)) + UDF_I_LENEATTR(inode)))
#define udf_ext0_offset(inode)\
(UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB ?\
udf_file_entry_alloc_offset(inode) : 0)
#define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
struct dentry;
struct inode;
struct task_struct;
struct buffer_head;
struct super_block;
extern struct inode_operations udf_dir_inode_operations;
extern const struct file_operations udf_dir_operations;
extern struct inode_operations udf_file_inode_operations;
extern const struct file_operations udf_file_operations;
extern struct address_space_operations udf_aops;
extern struct address_space_operations udf_adinicb_aops;
extern struct address_space_operations udf_symlink_aops;
struct udf_fileident_bh
{
struct buffer_head *sbh;
struct buffer_head *ebh;
int soffset;
int eoffset;
};
struct udf_vds_record
{
uint32_t block;
uint32_t volDescSeqNum;
};
struct generic_desc
{
tag descTag;
__le32 volDescSeqNum;
};
struct ustr
{
uint8_t u_cmpID;
uint8_t u_name[UDF_NAME_LEN-2];
uint8_t u_len;
};
/* super.c */
extern void udf_error(struct super_block *, const char *, const char *, ...);
extern void udf_warning(struct super_block *, const char *, const char *, ...);
/* namei.c */
extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, struct fileIdentDesc *, struct udf_fileident_bh *, uint8_t *, uint8_t *);
/* file.c */
extern int udf_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
/* inode.c */
extern struct inode *udf_iget(struct super_block *, kernel_lb_addr);
extern int udf_sync_inode(struct inode *);
extern void udf_expand_file_adinicb(struct inode *, int, int *);
extern struct buffer_head * udf_expand_dir_adinicb(struct inode *, int *, int *);
extern struct buffer_head * udf_bread(struct inode *, int, int, int *);
extern void udf_truncate(struct inode *);
extern void udf_read_inode(struct inode *);
extern void udf_delete_inode(struct inode *);
extern void udf_clear_inode(struct inode *);
extern int udf_write_inode(struct inode *, int);
extern long udf_block_map(struct inode *, long);
extern int8_t inode_bmap(struct inode *, int, kernel_lb_addr *, uint32_t *, kernel_lb_addr *, uint32_t *, uint32_t *, struct buffer_head **);
extern int8_t udf_add_aext(struct inode *, kernel_lb_addr *, int *, kernel_lb_addr, uint32_t, struct buffer_head **, int);
extern int8_t udf_write_aext(struct inode *, kernel_lb_addr, int *, kernel_lb_addr, uint32_t, struct buffer_head *, int);
extern int8_t udf_delete_aext(struct inode *, kernel_lb_addr, int, kernel_lb_addr, uint32_t, struct buffer_head *);
extern int8_t udf_next_aext(struct inode *, kernel_lb_addr *, int *, kernel_lb_addr *, uint32_t *, struct buffer_head **, int);
extern int8_t udf_current_aext(struct inode *, kernel_lb_addr *, int *, kernel_lb_addr *, uint32_t *, struct buffer_head **, int);
/* misc.c */
extern struct buffer_head *udf_tgetblk(struct super_block *, int);
extern struct buffer_head *udf_tread(struct super_block *, int);
extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, uint32_t, uint8_t);
extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, uint8_t);
extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, uint32_t, uint16_t *);
extern struct buffer_head *udf_read_ptagged(struct super_block *, kernel_lb_addr, uint32_t, uint16_t *);
extern void udf_release_data(struct buffer_head *);
extern void udf_update_tag(char *, int);
extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
/* lowlevel.c */
extern unsigned int udf_get_last_session(struct super_block *);
extern unsigned long udf_get_last_block(struct super_block *);
/* partition.c */
extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, uint32_t);
extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, uint32_t);
extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, uint32_t);
extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, uint32_t);
extern int udf_relocate_blocks(struct super_block *, long, long *);
/* unicode.c */
extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *, int);
extern int udf_build_ustr(struct ustr *, dstring *, int);
extern int udf_CS0toUTF8(struct ustr *, struct ustr *);
/* ialloc.c */
extern void udf_free_inode(struct inode *);
extern struct inode * udf_new_inode (struct inode *, int, int *);
/* truncate.c */
extern void udf_discard_prealloc(struct inode *);
extern void udf_truncate_extents(struct inode *);
/* balloc.c */
extern void udf_free_blocks(struct super_block *, struct inode *, kernel_lb_addr, uint32_t, uint32_t);
extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, uint32_t, uint32_t);
extern int udf_new_block(struct super_block *, struct inode *, uint16_t, uint32_t, int *);
/* fsync.c */
extern int udf_fsync_file(struct file *, struct dentry *, int);
/* directory.c */
extern struct fileIdentDesc * udf_fileident_read(struct inode *, loff_t *, struct udf_fileident_bh *, struct fileIdentDesc *, kernel_lb_addr *, uint32_t *, kernel_lb_addr *, uint32_t *, uint32_t *, struct buffer_head **);
extern struct fileIdentDesc * udf_get_fileident(void * buffer, int bufsize, int * offset);
extern long_ad * udf_get_filelongad(uint8_t *, int, int *, int);
extern short_ad * udf_get_fileshortad(uint8_t *, int, int *, int);
/* crc.c */
extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t);
/* udftime.c */
extern time_t *udf_stamp_to_time(time_t *, long *, kernel_timestamp);
extern kernel_timestamp *udf_time_to_stamp(kernel_timestamp *, struct timespec);
#endif /* __UDF_DECL_H */
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