+++ /dev/null
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * 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 version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/winnt/portals_utils.h
- *
- * Basic library routines.
- */
-
-#ifndef __LIBCFS_WINNT_PORTALS_UTILS_H__
-#define __LIBCFS_WINNT_PORTALS_UTILS_H__
-
-#ifndef cfs_is_flag_set
-#define cfs_is_flag_set(x,f) (((x)&(f))==(f))
-#endif
-
-#ifndef cfs_set_flag
-#define cfs_set_flag(x,f) ((x) |= (f))
-#endif
-
-#ifndef cfs_clear_flag
-#define cfs_clear_flag(x,f) ((x) &= ~(f))
-#endif
-
-static inline __u32 do_div64(__u64 * n, __u64 b)
-{
- __u64 mod;
-
- mod = *n % b;
- *n = *n / b;
- return (__u32)mod;
-}
-
-#define do_div(n, b) do_div64(&(n), (__u64)b)
-#ifdef __KERNEL__
-
-#include <stdlib.h>
-#include <libcfs/winnt/winnt-types.h>
-
-char * strsep(char **s, const char *ct);
-char * ul2dstr(ulong_ptr_t address, char *buf, int len);
-
-#define simple_strtol(a1, a2, a3) strtol(a1, a2, a3)
-#define simple_strtoll(a1, a2, a3) (__s64)strtoull(a1, a2, a3)
-#define simple_strtoull(a1, a2, a3) strtoull(a1, a2, a3)
-
-unsigned long simple_strtoul(const char *cp,char **endp, unsigned int base);
-
-static inline int set_bit(int nr, void * addr)
-{
- (((volatile ULONG *) addr)[nr >> 5]) |= (1UL << (nr & 31));
- return *((int *) addr);
-}
-
-static inline int test_bit(int nr, void * addr)
-{
- return (int)(((1UL << (nr & 31)) & (((volatile ULONG *) addr)[nr >> 5])) != 0);
-}
-
-static inline int clear_bit(int nr, void * addr)
-{
- (((volatile ULONG *) addr)[nr >> 5]) &= (~(1UL << (nr & 31)));
- return *((int *) addr);
-}
-
-static inline int test_and_set_bit(int nr, volatile void *addr)
-{
- int rc;
- unsigned char mask;
- volatile unsigned char *ADDR = addr;
-
- ADDR += nr >> 3;
- mask = 1 << (nr & 0x07);
- rc = ((mask & *ADDR) != 0);
- *ADDR |= mask;
-
- return rc;
-}
-
-#define ext2_set_bit(nr, addr) (set_bit(nr, addr), 0)
-#define ext2_clear_bit(nr, addr) (clear_bit(nr, addr), 0)
-#define ext2_test_bit(nr, addr) test_bit(nr, addr)
-
-static inline int ffs(int x)
-{
- int r = 1;
-
- if (!x)
- return 0;
- if (!(x & 0xffff)) {
- x >>= 16;
- r += 16;
- }
- if (!(x & 0xff)) {
- x >>= 8;
- r += 8;
- }
- if (!(x & 0xf)) {
- x >>= 4;
- r += 4;
- }
- if (!(x & 3)) {
- x >>= 2;
- r += 2;
- }
- if (!(x & 1)) {
- x >>= 1;
- r += 1;
- }
- return r;
-}
-
-static inline unsigned long __cfs_ffs(unsigned long word)
-{
- int num = 0;
-
-#if BITS_PER_LONG == 64
- if ((word & 0xffffffff) == 0) {
- num += 32;
- word >>= 32;
- }
-#endif
- if ((word & 0xffff) == 0) {
- num += 16;
- word >>= 16;
- }
- if ((word & 0xff) == 0) {
- num += 8;
- word >>= 8;
- }
- if ((word & 0xf) == 0) {
- num += 4;
- word >>= 4;
- }
- if ((word & 0x3) == 0) {
- num += 2;
- word >>= 2;
- }
- if ((word & 0x1) == 0)
- num += 1;
- return num;
-}
-
-/**
- * fls - find last (most-significant) bit set
- * @x: the word to search
- *
- * This is defined the same way as ffs.
- * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
- */
-static inline
-int fls(int x)
-{
- int r = 32;
-
- if (!x)
- return 0;
- if (!(x & 0xffff0000u)) {
- x <<= 16;
- r -= 16;
- }
- if (!(x & 0xff000000u)) {
- x <<= 8;
- r -= 8;
- }
- if (!(x & 0xf0000000u)) {
- x <<= 4;
- r -= 4;
- }
- if (!(x & 0xc0000000u)) {
- x <<= 2;
- r -= 2;
- }
- if (!(x & 0x80000000u)) {
- x <<= 1;
- r -= 1;
- }
- return r;
-}
-
-static inline unsigned find_first_bit(const unsigned long *addr,
- unsigned size)
-{
- unsigned x = 0;
-
- while (x < size) {
- unsigned long val = *addr++;
- if (val)
- return __cfs_ffs(val) + x;
- x += (sizeof(*addr)<<3);
- }
- return x;
-}
-
-static inline void read_random(char *buf, int len)
-{
- ULONG Seed = (ULONG)(ULONG_PTR) buf;
- Seed = RtlRandom(&Seed);
- while (len >0) {
- if (len > sizeof(ULONG)) {
- memcpy(buf, &Seed, sizeof(ULONG));
- len -= sizeof(ULONG);
- buf += sizeof(ULONG);
- } else {
- memcpy(buf, &Seed, len);
- len = 0;
- break;
- }
- }
-}
-
-#define get_random_bytes(buf, len) read_random(buf, len)
-
-/* do NOT use function or expression as parameters ... */
-
-#ifndef min_t
-#define min_t(type,x,y) (type)(x) < (type)(y) ? (x): (y)
-#endif
-
-#ifndef max_t
-#define max_t(type,x,y) (type)(x) < (type)(y) ? (y): (x)
-#endif
-
-
-#define NIPQUAD(addr) \
- ((unsigned char *)&addr)[0], \
- ((unsigned char *)&addr)[1], \
- ((unsigned char *)&addr)[2], \
- ((unsigned char *)&addr)[3]
-
-#define HIPQUAD(addr) \
- ((unsigned char *)&addr)[3], \
- ((unsigned char *)&addr)[2], \
- ((unsigned char *)&addr)[1], \
- ((unsigned char *)&addr)[0]
-
-static int copy_from_user(void *to, void *from, int c)
-{
- memcpy(to, from, c);
- return 0;
-}
-
-static int copy_to_user(void *to, const void *from, int c)
-{
- memcpy(to, from, c);
- return 0;
-}
-
-static unsigned long
-clear_user(void __user *to, unsigned long n)
-{
- memset(to, 0, n);
- return n;
-}
-
-#define put_user(x, ptr) \
-( \
- *(ptr) = x, \
- 0 \
-)
-
-
-#define get_user(x,ptr) \
-( \
- x = *(ptr), \
- 0 \
-)
-
-#define totalram_pages (64 * 1024)
-#define NUM_CACHEPAGES totalram_pages
-
-#else
-
-#define unlink _unlink
-#define close _close
-#define open _open
-#define fdopen _fdopen
-#define strdup _strdup
-#define fileno _fileno
-#define isattry _isattry
-#define stat _stat
-
-#endif /* !__KERNEL__ */
-
-int cfs_error_code(NTSTATUS);
-
-static inline int vsnprintf(char *buf, size_t cnt,
- const char *fmt, va_list va)
-{
- int rc;
-
-#ifdef TRUE /* using msvcrt from windkk 3790 */
- rc = _vsnprintf(buf, cnt, fmt, va);
-#else
- rc = _vsnprintf_s(buf, cnt, cnt, fmt, va);
-#endif
- if (rc == -1)
- return cnt;
- return rc;
-}
-
-static inline int snprintf(char *buf, size_t cnt,
- const char *fmt, ...)
-{
- int rc;
- va_list va;
-
- va_start(va, fmt);
- rc = vsnprintf(buf, cnt, fmt, va);
- va_end(va);
- return rc;
-}
-
-#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff