diff options
| -rw-r--r-- | fs/jfs/endian24.h | 49 | ||||
| -rw-r--r-- | fs/jfs/jfs_dtree.c | 4 | ||||
| -rw-r--r-- | fs/jfs/jfs_types.h | 55 | ||||
| -rw-r--r-- | fs/jfs/jfs_xtree.h | 25 | ||||
| -rw-r--r-- | fs/jfs/super.c | 3 |
5 files changed, 45 insertions, 91 deletions
diff --git a/fs/jfs/endian24.h b/fs/jfs/endian24.h deleted file mode 100644 index fa92f7f1d0d0..000000000000 --- a/fs/jfs/endian24.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (C) International Business Machines Corp., 2001 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See - * the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef _H_ENDIAN24 -#define _H_ENDIAN24 - -/* - * endian24.h: - * - * Endian conversion for 24-byte data - * - */ -#define __swab24(x) \ -({ \ - __u32 __x = (x); \ - ((__u32)( \ - ((__x & (__u32)0x000000ffUL) << 16) | \ - (__x & (__u32)0x0000ff00UL) | \ - ((__x & (__u32)0x00ff0000UL) >> 16) )); \ -}) - -#if (defined(__KERNEL__) && defined(__LITTLE_ENDIAN)) || (defined(__BYTE_ORDER) && (__BYTE_ORDER == __LITTLE_ENDIAN)) - #define __cpu_to_le24(x) ((__u32)(x)) - #define __le24_to_cpu(x) ((__u32)(x)) -#else - #define __cpu_to_le24(x) __swab24(x) - #define __le24_to_cpu(x) __swab24(x) -#endif - -#ifdef __KERNEL__ - #define cpu_to_le24 __cpu_to_le24 - #define le24_to_cpu __le24_to_cpu -#endif - -#endif /* !_H_ENDIAN24 */ diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c index 984c2bbf4f61..d88576e23fe4 100644 --- a/fs/jfs/jfs_dtree.c +++ b/fs/jfs/jfs_dtree.c @@ -1040,8 +1040,8 @@ static int dtSplitUp(tid_t tid, pxdlist.maxnpxd = 1; pxdlist.npxd = 0; pxd = &pxdlist.pxd[0]; - PXDaddress(pxd, nxaddr) - PXDlength(pxd, xlen + n); + PXDaddress(pxd, nxaddr); + PXDlength(pxd, xlen + n); split->pxdlist = &pxdlist; if ((rc = dtExtendPage(tid, ip, split, btstack))) { nxaddr = addressPXD(pxd); diff --git a/fs/jfs/jfs_types.h b/fs/jfs/jfs_types.h index 43ea3713c083..8f602dcb51fa 100644 --- a/fs/jfs/jfs_types.h +++ b/fs/jfs/jfs_types.h @@ -30,8 +30,6 @@ #include <linux/types.h> #include <linux/nls.h> -#include "endian24.h" - /* * transaction and lock id's * @@ -59,26 +57,42 @@ struct timestruc_t { /* * physical xd (pxd) + * + * The leftmost 24 bits of len_addr are the extent length. + * The rightmost 8 bits of len_addr are the most signficant bits of + * the extent address */ typedef struct { - unsigned len:24; - unsigned addr1:8; + __le32 len_addr; __le32 addr2; } pxd_t; /* xd_t field construction */ -#define PXDlength(pxd, length32) ((pxd)->len = __cpu_to_le24(length32)) -#define PXDaddress(pxd, address64)\ -{\ - (pxd)->addr1 = ((s64)address64) >> 32;\ - (pxd)->addr2 = __cpu_to_le32((address64) & 0xffffffff);\ +static inline void PXDlength(pxd_t *pxd, __u32 len) +{ + pxd->len_addr = (pxd->len_addr & cpu_to_le32(~0xffffff)) | + cpu_to_le32(len & 0xffffff); +} + +static inline void PXDaddress(pxd_t *pxd, __u64 addr) +{ + pxd->len_addr = (pxd->len_addr & cpu_to_le32(0xffffff)) | + cpu_to_le32((addr >> 32)<<24); + pxd->addr2 = cpu_to_le32(addr & 0xffffffff); } /* xd_t field extraction */ -#define lengthPXD(pxd) __le24_to_cpu((pxd)->len) -#define addressPXD(pxd)\ - ( ((s64)((pxd)->addr1)) << 32 | __le32_to_cpu((pxd)->addr2)) +static inline __u32 lengthPXD(pxd_t *pxd) +{ + return le32_to_cpu((pxd)->len_addr) & 0xffffff; +} + +static inline __u64 addressPXD(pxd_t *pxd) +{ + __u64 n = le32_to_cpu(pxd->len_addr) & ~0xffffff; + return (n << 8) + le32_to_cpu(pxd->addr2); +} #define MAXTREEHEIGHT 8 /* pxd list */ @@ -93,12 +107,10 @@ struct pxdlist { * data extent descriptor (dxd) */ typedef struct { - unsigned flag:8; /* 1: flags */ - unsigned rsrvd:24; + __u8 flag; /* 1: flags */ + __u8 rsrvd[3]; __le32 size; /* 4: size in byte */ - unsigned len:24; /* 3: length in unit of fsblksize */ - unsigned addr1:8; /* 1: address in unit of fsblksize */ - __le32 addr2; /* 4: address in unit of fsblksize */ + pxd_t loc; /* 8: address and length in unit of fsblksize */ } dxd_t; /* - 16 - */ /* dxd_t flags */ @@ -109,12 +121,11 @@ typedef struct { #define DXD_CORRUPT 0x08 /* Inconsistency detected */ /* dxd_t field construction - * Conveniently, the PXD macros work for DXD */ -#define DXDlength PXDlength -#define DXDaddress PXDaddress -#define lengthDXD lengthPXD -#define addressDXD addressPXD +#define DXDlength(dxd, len) PXDlength(&(dxd)->loc, len) +#define DXDaddress(dxd, addr) PXDaddress(&(dxd)->loc, addr) +#define lengthDXD(dxd) lengthPXD(&(dxd)->loc) +#define addressDXD(dxd) addressPXD(&(dxd)->loc) #define DXDsize(dxd, size32) ((dxd)->size = cpu_to_le32(size32)) #define sizeDXD(dxd) le32_to_cpu((dxd)->size) diff --git a/fs/jfs/jfs_xtree.h b/fs/jfs/jfs_xtree.h index 08c0c749b986..1e0987986d5f 100644 --- a/fs/jfs/jfs_xtree.h +++ b/fs/jfs/jfs_xtree.h @@ -29,13 +29,11 @@ * extent allocation descriptor (xad) */ typedef struct xad { - unsigned flag:8; /* 1: flag */ - unsigned rsvrd:16; /* 2: reserved */ - unsigned off1:8; /* 1: offset in unit of fsblksize */ - __le32 off2; /* 4: offset in unit of fsblksize */ - unsigned len:24; /* 3: length in unit of fsblksize */ - unsigned addr1:8; /* 1: address in unit of fsblksize */ - __le32 addr2; /* 4: address in unit of fsblksize */ + __u8 flag; /* 1: flag */ + __u8 rsvrd[2]; /* 2: reserved */ + __u8 off1; /* 1: offset in unit of fsblksize */ + __le32 off2; /* 4: offset in unit of fsblksize */ + pxd_t loc; /* 8: length and address in unit of fsblksize */ } xad_t; /* (16) */ #define MAXXLEN ((1 << 24) - 1) @@ -49,19 +47,14 @@ typedef struct xad { (xad)->off1 = ((u64)offset64) >> 32;\ (xad)->off2 = __cpu_to_le32((offset64) & 0xffffffff);\ } -#define XADaddress(xad, address64)\ -{\ - (xad)->addr1 = ((u64)address64) >> 32;\ - (xad)->addr2 = __cpu_to_le32((address64) & 0xffffffff);\ -} -#define XADlength(xad, length32) (xad)->len = __cpu_to_le24(length32) +#define XADaddress(xad, address64) PXDaddress(&(xad)->loc, address64) +#define XADlength(xad, length32) PXDlength(&(xad)->loc, length32) /* xad_t field extraction */ #define offsetXAD(xad)\ ( ((s64)((xad)->off1)) << 32 | __le32_to_cpu((xad)->off2)) -#define addressXAD(xad)\ - ( ((s64)((xad)->addr1)) << 32 | __le32_to_cpu((xad)->addr2)) -#define lengthXAD(xad) __le24_to_cpu((xad)->len) +#define addressXAD(xad) addressPXD(&(xad)->loc) +#define lengthXAD(xad) lengthPXD(&(xad)->loc) /* xad list */ struct xadlist { diff --git a/fs/jfs/super.c b/fs/jfs/super.c index 16c3a9556634..5d30c56ae075 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -619,8 +619,7 @@ out_mount_failed: iput(sbi->direct_inode); sbi->direct_inode = NULL; out_unload: - if (sbi->nls_tab) - unload_nls(sbi->nls_tab); + unload_nls(sbi->nls_tab); out_kfree: kfree(sbi); return ret; |