mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 03:35:42 +07:00
36a53ddf85
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
116 lines
2.5 KiB
C
116 lines
2.5 KiB
C
/*
|
|
* linux/fs/ufs/swab.h
|
|
*
|
|
* Copyright (C) 1997, 1998 Francois-Rene Rideau <fare@tunes.org>
|
|
* Copyright (C) 1998 Jakub Jelinek <jj@ultra.linux.cz>
|
|
* Copyright (C) 2001 Christoph Hellwig <hch@infradead.org>
|
|
*/
|
|
|
|
#ifndef _UFS_SWAB_H
|
|
#define _UFS_SWAB_H
|
|
|
|
/*
|
|
* Notes:
|
|
* HERE WE ASSUME EITHER BIG OR LITTLE ENDIAN UFSes
|
|
* in case there are ufs implementations that have strange bytesexes,
|
|
* you'll need to modify code here as well as in ufs_super.c and ufs_fs.h
|
|
* to support them.
|
|
*/
|
|
|
|
enum {
|
|
BYTESEX_LE,
|
|
BYTESEX_BE
|
|
};
|
|
|
|
static inline u64
|
|
fs64_to_cpu(struct super_block *sbp, __fs64 n)
|
|
{
|
|
if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
|
|
return le64_to_cpu((__force __le64)n);
|
|
else
|
|
return be64_to_cpu((__force __be64)n);
|
|
}
|
|
|
|
static inline __fs64
|
|
cpu_to_fs64(struct super_block *sbp, u64 n)
|
|
{
|
|
if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
|
|
return (__force __fs64)cpu_to_le64(n);
|
|
else
|
|
return (__force __fs64)cpu_to_be64(n);
|
|
}
|
|
|
|
static inline u32
|
|
fs32_to_cpu(struct super_block *sbp, __fs32 n)
|
|
{
|
|
if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
|
|
return le32_to_cpu((__force __le32)n);
|
|
else
|
|
return be32_to_cpu((__force __be32)n);
|
|
}
|
|
|
|
static inline __fs32
|
|
cpu_to_fs32(struct super_block *sbp, u32 n)
|
|
{
|
|
if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
|
|
return (__force __fs32)cpu_to_le32(n);
|
|
else
|
|
return (__force __fs32)cpu_to_be32(n);
|
|
}
|
|
|
|
static inline void
|
|
fs32_add(struct super_block *sbp, __fs32 *n, int d)
|
|
{
|
|
if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
|
|
le32_add_cpu((__le32 *)n, d);
|
|
else
|
|
be32_add_cpu((__be32 *)n, d);
|
|
}
|
|
|
|
static inline void
|
|
fs32_sub(struct super_block *sbp, __fs32 *n, int d)
|
|
{
|
|
if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
|
|
le32_add_cpu((__le32 *)n, -d);
|
|
else
|
|
be32_add_cpu((__be32 *)n, -d);
|
|
}
|
|
|
|
static inline u16
|
|
fs16_to_cpu(struct super_block *sbp, __fs16 n)
|
|
{
|
|
if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
|
|
return le16_to_cpu((__force __le16)n);
|
|
else
|
|
return be16_to_cpu((__force __be16)n);
|
|
}
|
|
|
|
static inline __fs16
|
|
cpu_to_fs16(struct super_block *sbp, u16 n)
|
|
{
|
|
if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
|
|
return (__force __fs16)cpu_to_le16(n);
|
|
else
|
|
return (__force __fs16)cpu_to_be16(n);
|
|
}
|
|
|
|
static inline void
|
|
fs16_add(struct super_block *sbp, __fs16 *n, int d)
|
|
{
|
|
if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
|
|
le16_add_cpu((__le16 *)n, d);
|
|
else
|
|
be16_add_cpu((__be16 *)n, d);
|
|
}
|
|
|
|
static inline void
|
|
fs16_sub(struct super_block *sbp, __fs16 *n, int d)
|
|
{
|
|
if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
|
|
le16_add_cpu((__le16 *)n, -d);
|
|
else
|
|
be16_add_cpu((__be16 *)n, -d);
|
|
}
|
|
|
|
#endif /* _UFS_SWAB_H */
|