diff options
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_linux.h')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_linux.h | 351 |
1 files changed, 0 insertions, 351 deletions
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h deleted file mode 100644 index 44fed10af0d..00000000000 --- a/fs/xfs/linux-2.6/xfs_linux.h +++ /dev/null @@ -1,351 +0,0 @@ -/* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. - * All Rights Reserved. - * - * 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. - * - * This program is distributed in the hope that it would 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 the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#ifndef __XFS_LINUX__ -#define __XFS_LINUX__ - -#include <linux/types.h> -#include <linux/config.h> - -/* - * Some types are conditional depending on the target system. - * XFS_BIG_BLKNOS needs block layer disk addresses to be 64 bits. - * XFS_BIG_INUMS needs the VFS inode number to be 64 bits, as well - * as requiring XFS_BIG_BLKNOS to be set. - */ -#if defined(CONFIG_LBD) || (BITS_PER_LONG == 64) -# define XFS_BIG_BLKNOS 1 -# if BITS_PER_LONG == 64 -# define XFS_BIG_INUMS 1 -# else -# define XFS_BIG_INUMS 0 -# endif -#else -# define XFS_BIG_BLKNOS 0 -# define XFS_BIG_INUMS 0 -#endif - -#include <xfs_types.h> -#include <xfs_arch.h> - -#include <kmem.h> -#include <mrlock.h> -#include <spin.h> -#include <sv.h> -#include <mutex.h> -#include <sema.h> -#include <time.h> - -#include <support/ktrace.h> -#include <support/debug.h> -#include <support/move.h> -#include <support/uuid.h> - -#include <linux/mm.h> -#include <linux/kernel.h> -#include <linux/blkdev.h> -#include <linux/slab.h> -#include <linux/module.h> -#include <linux/file.h> -#include <linux/swap.h> -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/bitops.h> -#include <linux/major.h> -#include <linux/pagemap.h> -#include <linux/vfs.h> -#include <linux/seq_file.h> -#include <linux/init.h> -#include <linux/list.h> -#include <linux/proc_fs.h> -#include <linux/version.h> -#include <linux/sort.h> - -#include <asm/page.h> -#include <asm/div64.h> -#include <asm/param.h> -#include <asm/uaccess.h> -#include <asm/byteorder.h> -#include <asm/unaligned.h> - -#include <xfs_behavior.h> -#include <xfs_vfs.h> -#include <xfs_cred.h> -#include <xfs_vnode.h> -#include <xfs_stats.h> -#include <xfs_sysctl.h> -#include <xfs_iops.h> -#include <xfs_aops.h> -#include <xfs_super.h> -#include <xfs_globals.h> -#include <xfs_fs_subr.h> -#include <xfs_lrw.h> -#include <xfs_buf.h> - -/* - * Feature macros (disable/enable) - */ -#undef HAVE_REFCACHE /* reference cache not needed for NFS in 2.6 */ -#define HAVE_SENDFILE /* sendfile(2) exists in 2.6, but not in 2.4 */ - -/* - * State flag for unwritten extent buffers. - * - * We need to be able to distinguish between these and delayed - * allocate buffers within XFS. The generic IO path code does - * not need to distinguish - we use the BH_Delay flag for both - * delalloc and these ondisk-uninitialised buffers. - */ -BUFFER_FNS(PrivateStart, unwritten); -static inline void set_buffer_unwritten_io(struct buffer_head *bh) -{ - bh->b_end_io = linvfs_unwritten_done; -} - -#define restricted_chown xfs_params.restrict_chown.val -#define irix_sgid_inherit xfs_params.sgid_inherit.val -#define irix_symlink_mode xfs_params.symlink_mode.val -#define xfs_panic_mask xfs_params.panic_mask.val -#define xfs_error_level xfs_params.error_level.val -#define xfs_syncd_centisecs xfs_params.syncd_timer.val -#define xfs_stats_clear xfs_params.stats_clear.val -#define xfs_inherit_sync xfs_params.inherit_sync.val -#define xfs_inherit_nodump xfs_params.inherit_nodump.val -#define xfs_inherit_noatime xfs_params.inherit_noatim.val -#define xfs_buf_timer_centisecs xfs_params.xfs_buf_timer.val -#define xfs_buf_age_centisecs xfs_params.xfs_buf_age.val -#define xfs_inherit_nosymlinks xfs_params.inherit_nosym.val -#define xfs_rotorstep xfs_params.rotorstep.val - -#ifndef raw_smp_processor_id -#define raw_smp_processor_id() smp_processor_id() -#endif -#define current_cpu() raw_smp_processor_id() -#define current_pid() (current->pid) -#define current_fsuid(cred) (current->fsuid) -#define current_fsgid(cred) (current->fsgid) - -#define NBPP PAGE_SIZE -#define DPPSHFT (PAGE_SHIFT - 9) -#define NDPP (1 << (PAGE_SHIFT - 9)) -#define dtop(DD) (((DD) + NDPP - 1) >> DPPSHFT) -#define dtopt(DD) ((DD) >> DPPSHFT) -#define dpoff(DD) ((DD) & (NDPP-1)) - -#define NBBY 8 /* number of bits per byte */ -#define NBPC PAGE_SIZE /* Number of bytes per click */ -#define BPCSHIFT PAGE_SHIFT /* LOG2(NBPC) if exact */ - -/* - * Size of block device i/o is parameterized here. - * Currently the system supports page-sized i/o. - */ -#define BLKDEV_IOSHIFT BPCSHIFT -#define BLKDEV_IOSIZE (1<<BLKDEV_IOSHIFT) -/* number of BB's per block device block */ -#define BLKDEV_BB BTOBB(BLKDEV_IOSIZE) - -/* bytes to clicks */ -#define btoc(x) (((__psunsigned_t)(x)+(NBPC-1))>>BPCSHIFT) -#define btoct(x) ((__psunsigned_t)(x)>>BPCSHIFT) -#define btoc64(x) (((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT) -#define btoct64(x) ((__uint64_t)(x)>>BPCSHIFT) -#define io_btoc(x) (((__psunsigned_t)(x)+(IO_NBPC-1))>>IO_BPCSHIFT) -#define io_btoct(x) ((__psunsigned_t)(x)>>IO_BPCSHIFT) - -/* off_t bytes to clicks */ -#define offtoc(x) (((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT) -#define offtoct(x) ((xfs_off_t)(x)>>BPCSHIFT) - -/* clicks to off_t bytes */ -#define ctooff(x) ((xfs_off_t)(x)<<BPCSHIFT) - -/* clicks to bytes */ -#define ctob(x) ((__psunsigned_t)(x)<<BPCSHIFT) -#define btoct(x) ((__psunsigned_t)(x)>>BPCSHIFT) -#define ctob64(x) ((__uint64_t)(x)<<BPCSHIFT) -#define io_ctob(x) ((__psunsigned_t)(x)<<IO_BPCSHIFT) - -/* bytes to clicks */ -#define btoc(x) (((__psunsigned_t)(x)+(NBPC-1))>>BPCSHIFT) - -#ifndef ENOATTR -#define ENOATTR ENODATA /* Attribute not found */ -#endif - -/* Note: EWRONGFS never visible outside the kernel */ -#define EWRONGFS EINVAL /* Mount with wrong filesystem type */ - -/* - * XXX EFSCORRUPTED needs a real value in errno.h. asm-i386/errno.h won't - * return codes out of its known range in errno. - * XXX Also note: needs to be < 1000 and fairly unique on Linux (mustn't - * conflict with any code we use already or any code a driver may use) - * XXX Some options (currently we do #2): - * 1/ New error code ["Filesystem is corrupted", _after_ glibc updated] - * 2/ 990 ["Unknown error 990"] - * 3/ EUCLEAN ["Structure needs cleaning"] - * 4/ Convert EFSCORRUPTED to EIO [just prior to return into userspace] - */ -#define EFSCORRUPTED 990 /* Filesystem is corrupted */ - -#define SYNCHRONIZE() barrier() -#define __return_address __builtin_return_address(0) - -/* - * IRIX (BSD) quotactl makes use of separate commands for user/group, - * whereas on Linux the syscall encodes this information into the cmd - * field (see the QCMD macro in quota.h). These macros help keep the - * code portable - they are not visible from the syscall interface. - */ -#define Q_XSETGQLIM XQM_CMD(8) /* set groups disk limits */ -#define Q_XGETGQUOTA XQM_CMD(9) /* get groups disk limits */ -#define Q_XSETPQLIM XQM_CMD(10) /* set projects disk limits */ -#define Q_XGETPQUOTA XQM_CMD(11) /* get projects disk limits */ - -#define dfltprid 0 -#define MAXPATHLEN 1024 - -#define MIN(a,b) (min(a,b)) -#define MAX(a,b) (max(a,b)) -#define howmany(x, y) (((x)+((y)-1))/(y)) -#define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) - -/* - * Various platform dependent calls that don't fit anywhere else - */ -#define xfs_sort(a,n,s,fn) sort(a,n,s,fn,NULL) -#define xfs_stack_trace() dump_stack() -#define xfs_itruncate_data(ip, off) \ - (-vmtruncate(LINVFS_GET_IP(XFS_ITOV(ip)), (off))) -#define xfs_statvfs_fsid(statp, mp) \ - ({ u64 id = huge_encode_dev((mp)->m_dev); \ - __kernel_fsid_t *fsid = &(statp)->f_fsid; \ - (fsid->val[0] = (u32)id, fsid->val[1] = (u32)(id >> 32)); }) - - -/* Move the kernel do_div definition off to one side */ - -#if defined __i386__ -/* For ia32 we need to pull some tricks to get past various versions - * of the compiler which do not like us using do_div in the middle - * of large functions. - */ -static inline __u32 xfs_do_div(void *a, __u32 b, int n) -{ - __u32 mod; - - switch (n) { - case 4: - mod = *(__u32 *)a % b; - *(__u32 *)a = *(__u32 *)a / b; - return mod; - case 8: - { - unsigned long __upper, __low, __high, __mod; - __u64 c = *(__u64 *)a; - __upper = __high = c >> 32; - __low = c; - if (__high) { - __upper = __high % (b); - __high = __high / (b); - } - asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (b), "0" (__low), "1" (__upper)); - asm("":"=A" (c):"a" (__low),"d" (__high)); - *(__u64 *)a = c; - return __mod; - } - } - - /* NOTREACHED */ - return 0; -} - -/* Side effect free 64 bit mod operation */ -static inline __u32 xfs_do_mod(void *a, __u32 b, int n) -{ - switch (n) { - case 4: - return *(__u32 *)a % b; - case 8: - { - unsigned long __upper, __low, __high, __mod; - __u64 c = *(__u64 *)a; - __upper = __high = c >> 32; - __low = c; - if (__high) { - __upper = __high % (b); - __high = __high / (b); - } - asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (b), "0" (__low), "1" (__upper)); - asm("":"=A" (c):"a" (__low),"d" (__high)); - return __mod; - } - } - - /* NOTREACHED */ - return 0; -} -#else -static inline __u32 xfs_do_div(void *a, __u32 b, int n) -{ - __u32 mod; - - switch (n) { - case 4: - mod = *(__u32 *)a % b; - *(__u32 *)a = *(__u32 *)a / b; - return mod; - case 8: - mod = do_div(*(__u64 *)a, b); - return mod; - } - - /* NOTREACHED */ - return 0; -} - -/* Side effect free 64 bit mod operation */ -static inline __u32 xfs_do_mod(void *a, __u32 b, int n) -{ - switch (n) { - case 4: - return *(__u32 *)a % b; - case 8: - { - __u64 c = *(__u64 *)a; - return do_div(c, b); - } - } - - /* NOTREACHED */ - return 0; -} -#endif - -#undef do_div -#define do_div(a, b) xfs_do_div(&(a), (b), sizeof(a)) -#define do_mod(a, b) xfs_do_mod(&(a), (b), sizeof(a)) - -static inline __uint64_t roundup_64(__uint64_t x, __uint32_t y) -{ - x += y - 1; - do_div(x, y); - return(x * y); -} - -#endif /* __XFS_LINUX__ */ |