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#ifndef __XFS_COMPAT_H__
#define __XFS_COMPAT_H__
#include <sys/param.h>
#include <sys/libkern.h>
#include <sys/limits.h>
#include <sys/uuid.h>
#include <sys/conf.h>
#include <sys/sbuf.h>
#include <sys/stat.h>
#include <sys/ioccom.h>
#include <sys/fcntl.h>
#include <sys/dirent.h>
#include <sys/ktr.h>
#include <sys/kdb.h>
#ifdef _KERNEL
#define __KERNEL__
#endif
#define printk printf
#define MAJOR(x) major(x)
#define MINOR(x) minor(x)
/*
* SYSV compatibility types missing in FreeBSD.
*/
typedef unsigned long ulong;
typedef unsigned int uint;
typedef unsigned short ushort;
/*
* Additional type declarations for XFS.
*/
typedef signed char __s8;
typedef unsigned char __u8;
typedef signed short int __s16;
typedef unsigned short int __u16;
typedef signed int __s32;
typedef unsigned int __u32;
typedef signed long long int __s64;
typedef unsigned long long int __u64;
/* linus now has sparse which expects big endian or little endian */
typedef __u16 __be16;
typedef __u32 __be32;
typedef __u64 __be64;
/*
* Linux types with direct FreeBSD conterparts
*/
typedef off_t loff_t;
typedef struct timespec timespec_t;
typedef struct uuid uuid_t;
typedef struct fid fid_t;
typedef dev_t os_dev_t;
/*
* Linux block devices are device vnodes in FreeBSD.
*/
#define block_device vnode
/*
* Get the current CPU ID.
*/
#define smp_processor_id() PCPU_GET(cpuid)
/*
* FreeBSD does not have BITS_PER_LONG defined.
*/
#if defined(LONG_BIT)
#define BITS_PER_LONG LONG_BIT
#elif defined(__i386__)
#define BITS_PER_LONG 32
#endif
#define rol32(x, y) (((x)<<(y))|((x)>>(32-(y))))
/*
* boolean_t is enum on Linux, int on FreeBSD.
* Provide value defines.
*/
#define B_FALSE 0
#define B_TRUE 1
/*
* GCC 3.x static branch prediction hints
*/
#if __GNUC__ < 3
#define __builtin_expect(x, expected_value) (x)
#endif
#ifndef likely
#define likely(x) __builtin_expect((x), 1)
#endif
#ifndef unlikely
#define unlikely(x) __builtin_expect((x), 0)
#endif
/*
* ANSI and GCC extension keywords compatibity
*/
#ifndef inline
#define inline __inline__
#endif
#ifndef asm
#define asm __asm
#endif
#ifndef typeof
#define typeof __typeof
#endif
/*
* Miscellaneous limit constants
*/
#define MAX_LFS_FILESIZE 0x7fffffffffffffffLL
/*
* Map simple functions to their FreeBSD kernel equivalents
*/
#ifndef copy_to_user
#define copy_to_user(dst, src, len) copyout((src), (dst), (len))
#endif
#ifndef copy_from_user
#define copy_from_user(dst, src, len) copyin((src), (dst), (len))
#endif
/*
* Map simple global vairables to FreeBSD kernel equivalents
*/
#if !defined(xfs_physmem)
#define xfs_physmem physmem
#endif
#ifndef HZ
#define HZ hz
#endif
/*
* These should be implemented properly for all architectures
* we want to support.
*/
#define get_unaligned(ptr) (*(ptr))
#define put_unaligned(val, ptr) ((void)( *(ptr) = (val) ))
/*
* Linux type-safe min/max macros.
*/
#define min_t(type,x,y) MIN((x),(y))
#define max_t(type,x,y) MAX((x),(y))
typedef struct mtx xfs_mutex_t;
/*
* Cedentials manipulation.
*/
#define current_fsuid(credp) (credp)->cr_uid
#define current_fsgid(credp) (credp)->cr_groups[0]
#define PAGE_CACHE_SIZE PAGE_SIZE
#define IS_ERR(err) (err)
static inline unsigned long ffz(unsigned long val)
{
return ffsl(~val);
}
#endif /* __XFS_COMPAT_H__ */
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