145 lines
4 KiB
C
145 lines
4 KiB
C
/*
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* GPL HEADER START
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 only,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License version 2 for more details (a copy is included
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* in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; If not, see
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* http://www.gnu.org/licenses/gpl-2.0.html
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*
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* GPL HEADER END
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*/
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/*
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* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
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* Use is subject to license terms.
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*
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* Copyright (c) 2011, 2015, Intel Corporation.
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*/
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/*
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* This file is part of Lustre, http://www.lustre.org/
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* Lustre is a trademark of Sun Microsystems, Inc.
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*/
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#ifndef __LIBCFS_LIBCFS_H__
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#define __LIBCFS_LIBCFS_H__
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#include "linux/libcfs.h"
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#include <linux/gfp.h>
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#include "curproc.h"
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#define LIBCFS_VERSION "0.7.0"
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#define LOWEST_BIT_SET(x) ((x) & ~((x) - 1))
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/*
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* Lustre Error Checksum: calculates checksum
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* of Hex number by XORing each bit.
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*/
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#define LERRCHKSUM(hexnum) (((hexnum) & 0xf) ^ ((hexnum) >> 4 & 0xf) ^ \
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((hexnum) >> 8 & 0xf))
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#include <linux/list.h>
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/* need both kernel and user-land acceptor */
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#define LNET_ACCEPTOR_MIN_RESERVED_PORT 512
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#define LNET_ACCEPTOR_MAX_RESERVED_PORT 1023
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/*
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* Defined by platform
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*/
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sigset_t cfs_block_allsigs(void);
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sigset_t cfs_block_sigs(unsigned long sigs);
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sigset_t cfs_block_sigsinv(unsigned long sigs);
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void cfs_restore_sigs(sigset_t sigset);
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void cfs_clear_sigpending(void);
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/*
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* Random number handling
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*/
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/* returns a random 32-bit integer */
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unsigned int cfs_rand(void);
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/* seed the generator */
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void cfs_srand(unsigned int seed1, unsigned int seed2);
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void cfs_get_random_bytes(void *buf, int size);
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#include "libcfs_debug.h"
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#include "libcfs_cpu.h"
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#include "libcfs_private.h"
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#include "libcfs_ioctl.h"
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#include "libcfs_prim.h"
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#include "libcfs_time.h"
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#include "libcfs_string.h"
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#include "libcfs_workitem.h"
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#include "libcfs_hash.h"
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#include "libcfs_fail.h"
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struct libcfs_ioctl_handler {
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struct list_head item;
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int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_hdr *hdr);
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};
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#define DECLARE_IOCTL_HANDLER(ident, func) \
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struct libcfs_ioctl_handler ident = { \
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.item = LIST_HEAD_INIT(ident.item), \
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.handle_ioctl = func \
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}
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int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
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int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
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int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp,
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const struct libcfs_ioctl_hdr __user *uparam);
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int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data);
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int libcfs_ioctl(unsigned long cmd, void __user *arg);
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/* container_of depends on "likely" which is defined in libcfs_private.h */
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static inline void *__container_of(void *ptr, unsigned long shift)
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{
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if (IS_ERR_OR_NULL(ptr))
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return ptr;
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return (char *)ptr - shift;
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}
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#define container_of0(ptr, type, member) \
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((type *)__container_of((void *)(ptr), offsetof(type, member)))
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#define _LIBCFS_H
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void *libcfs_kvzalloc(size_t size, gfp_t flags);
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void *libcfs_kvzalloc_cpt(struct cfs_cpt_table *cptab, int cpt, size_t size,
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gfp_t flags);
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extern struct miscdevice libcfs_dev;
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/**
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* The path of debug log dump upcall script.
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*/
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extern char lnet_debug_log_upcall[1024];
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extern struct cfs_wi_sched *cfs_sched_rehash;
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struct lnet_debugfs_symlink_def {
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char *name;
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char *target;
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};
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void lustre_insert_debugfs(struct ctl_table *table,
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const struct lnet_debugfs_symlink_def *symlinks);
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int lprocfs_call_handler(void *data, int write, loff_t *ppos,
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void __user *buffer, size_t *lenp,
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int (*handler)(void *data, int write, loff_t pos,
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void __user *buffer, int len));
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#endif /* _LIBCFS_H */
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