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// SPDX-License-Identifier: GPL-2.0
/*
* 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.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*
* libcfs/include/libcfs/libcfs_private.h
*
* Various defines for libcfs.
*
*/
#ifndef __LIBCFS_PRIVATE_H__
#define __LIBCFS_PRIVATE_H__
#ifndef DEBUG_SUBSYSTEM
# define DEBUG_SUBSYSTEM S_UNDEFINED
#endif
#define LASSERTF(cond, fmt, ...) \
do { \
if (unlikely(!(cond))) { \
LIBCFS_DEBUG_MSG_DATA_DECL(__msg_data, D_EMERG, NULL); \
libcfs_debug_msg(&__msg_data, \
"ASSERTION( %s ) failed: " fmt, #cond, \
## __VA_ARGS__); \
lbug_with_loc(&__msg_data); \
} \
} while (0)
#define LASSERT(cond) LASSERTF(cond, "\n")
#ifdef CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK
/**
* This is for more expensive checks that one doesn't want to be enabled all
* the time. LINVRNT() has to be explicitly enabled by
* CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK option.
*/
# define LINVRNT(exp) LASSERT(exp)
#else
# define LINVRNT(exp) ((void)sizeof !!(exp))
#endif
void __noreturn lbug_with_loc(struct libcfs_debug_msg_data *msg);
#define LBUG() \
do { \
LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_EMERG, NULL); \
lbug_with_loc(&msgdata); \
} while (0)
/*
* Use #define rather than inline, as lnet_cpt_table() might
* not be defined yet
*/
#define kmalloc_cpt(size, flags, cpt) \
kmalloc_node(size, flags, cfs_cpt_spread_node(lnet_cpt_table(), cpt))
#define kzalloc_cpt(size, flags, cpt) \
kmalloc_node(size, flags | __GFP_ZERO, \
cfs_cpt_spread_node(lnet_cpt_table(), cpt))
#define kvmalloc_cpt(size, flags, cpt) \
kvmalloc_node(size, flags, \
cfs_cpt_spread_node(lnet_cpt_table(), cpt))
#define kvzalloc_cpt(size, flags, cpt) \
kvmalloc_node(size, flags | __GFP_ZERO, \
cfs_cpt_spread_node(lnet_cpt_table(), cpt))
/******************************************************************************/
void libcfs_debug_dumplog(void);
int libcfs_debug_init(unsigned long bufsize);
int libcfs_debug_cleanup(void);
int libcfs_debug_clear_buffer(void);
int libcfs_debug_mark_buffer(const char *text);
/*
* allocate a variable array, returned value is an array of pointers.
* Caller can specify length of array by count.
*/
void *cfs_array_alloc(int count, unsigned int size);
void cfs_array_free(void *vars);
#define LASSERT_ATOMIC_ENABLED (1)
#if LASSERT_ATOMIC_ENABLED
/** assert value of @a is equal to @v */
#define LASSERT_ATOMIC_EQ(a, v) \
LASSERTF(atomic_read(a) == v, "value: %d\n", atomic_read((a)))
/** assert value of @a is unequal to @v */
#define LASSERT_ATOMIC_NE(a, v) \
LASSERTF(atomic_read(a) != v, "value: %d\n", atomic_read((a)))
/** assert value of @a is little than @v */
#define LASSERT_ATOMIC_LT(a, v) \
LASSERTF(atomic_read(a) < v, "value: %d\n", atomic_read((a)))
/** assert value of @a is little/equal to @v */
#define LASSERT_ATOMIC_LE(a, v) \
LASSERTF(atomic_read(a) <= v, "value: %d\n", atomic_read((a)))
/** assert value of @a is great than @v */
#define LASSERT_ATOMIC_GT(a, v) \
LASSERTF(atomic_read(a) > v, "value: %d\n", atomic_read((a)))
/** assert value of @a is great/equal to @v */
#define LASSERT_ATOMIC_GE(a, v) \
LASSERTF(atomic_read(a) >= v, "value: %d\n", atomic_read((a)))
/** assert value of @a is great than @v1 and little than @v2 */
#define LASSERT_ATOMIC_GT_LT(a, v1, v2) \
do { \
int __v = atomic_read(a); \
LASSERTF(__v > v1 && __v < v2, "value: %d\n", __v); \
} while (0)
/** assert value of @a is great than @v1 and little/equal to @v2 */
#define LASSERT_ATOMIC_GT_LE(a, v1, v2) \
do { \
int __v = atomic_read(a); \
LASSERTF(__v > v1 && __v <= v2, "value: %d\n", __v); \
} while (0)
/** assert value of @a is great/equal to @v1 and little than @v2 */
#define LASSERT_ATOMIC_GE_LT(a, v1, v2) \
do { \
int __v = atomic_read(a); \
LASSERTF(__v >= v1 && __v < v2, "value: %d\n", __v); \
} while (0)
/** assert value of @a is great/equal to @v1 and little/equal to @v2 */
#define LASSERT_ATOMIC_GE_LE(a, v1, v2) \
do { \
int __v = atomic_read(a); \
LASSERTF(__v >= v1 && __v <= v2, "value: %d\n", __v); \
} while (0)
#else /* !LASSERT_ATOMIC_ENABLED */
#define LASSERT_ATOMIC_EQ(a, v) do {} while (0)
#define LASSERT_ATOMIC_NE(a, v) do {} while (0)
#define LASSERT_ATOMIC_LT(a, v) do {} while (0)
#define LASSERT_ATOMIC_LE(a, v) do {} while (0)
#define LASSERT_ATOMIC_GT(a, v) do {} while (0)
#define LASSERT_ATOMIC_GE(a, v) do {} while (0)
#define LASSERT_ATOMIC_GT_LT(a, v1, v2) do {} while (0)
#define LASSERT_ATOMIC_GT_LE(a, v1, v2) do {} while (0)
#define LASSERT_ATOMIC_GE_LT(a, v1, v2) do {} while (0)
#define LASSERT_ATOMIC_GE_LE(a, v1, v2) do {} while (0)
#endif /* LASSERT_ATOMIC_ENABLED */
#define LASSERT_ATOMIC_ZERO(a) LASSERT_ATOMIC_EQ(a, 0)
#define LASSERT_ATOMIC_POS(a) LASSERT_ATOMIC_GT(a, 0)
/* implication */
#define ergo(a, b) (!(a) || (b))
/* logical equivalence */
#define equi(a, b) (!!(a) == !!(b))
#ifndef HAVE_CFS_SIZE_ROUND
static inline size_t cfs_size_round(int val)
{
return round_up(val, 8);
}
#define HAVE_CFS_SIZE_ROUND
#endif
#endif
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