zfs_debug.h revision 339108
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright (c) 2012, 2017 by Delphix. All rights reserved. 24 */ 25 26#ifndef _SYS_ZFS_DEBUG_H 27#define _SYS_ZFS_DEBUG_H 28 29#ifdef __cplusplus 30extern "C" { 31#endif 32 33#ifndef TRUE 34#define TRUE 1 35#endif 36 37#ifndef FALSE 38#define FALSE 0 39#endif 40 41/* 42 * ZFS debugging 43 */ 44 45#if defined(DEBUG) || !defined(_KERNEL) 46#if !defined(ZFS_DEBUG) 47#define ZFS_DEBUG 48#endif 49#endif 50 51extern int zfs_flags; 52extern boolean_t zfs_recover; 53extern boolean_t zfs_free_leak_on_eio; 54 55#define ZFS_DEBUG_DPRINTF (1 << 0) 56#define ZFS_DEBUG_DBUF_VERIFY (1 << 1) 57#define ZFS_DEBUG_DNODE_VERIFY (1 << 2) 58#define ZFS_DEBUG_SNAPNAMES (1 << 3) 59#define ZFS_DEBUG_MODIFY (1 << 4) 60/* 1<<5 was previously used, try not to reuse */ 61#define ZFS_DEBUG_ZIO_FREE (1 << 6) 62#define ZFS_DEBUG_HISTOGRAM_VERIFY (1 << 7) 63#define ZFS_DEBUG_METASLAB_VERIFY (1 << 8) 64#define ZFS_DEBUG_INDIRECT_REMAP (1 << 9) 65 66#ifdef ZFS_DEBUG 67extern void __dprintf(const char *file, const char *func, 68 int line, const char *fmt, ...); 69#define dprintf(...) \ 70 if (zfs_flags & ZFS_DEBUG_DPRINTF) \ 71 __dprintf(__FILE__, __func__, __LINE__, __VA_ARGS__) 72#else 73#define dprintf(...) ((void)0) 74#endif /* ZFS_DEBUG */ 75 76extern void zfs_panic_recover(const char *fmt, ...); 77 78typedef struct zfs_dbgmsg { 79 list_node_t zdm_node; 80 time_t zdm_timestamp; 81 char zdm_msg[1]; /* variable length allocation */ 82} zfs_dbgmsg_t; 83 84extern void zfs_dbgmsg_init(void); 85extern void zfs_dbgmsg_fini(void); 86extern void zfs_dbgmsg(const char *fmt, ...); 87extern void zfs_dbgmsg_print(const char *tag); 88 89#ifdef illumos 90#ifndef _KERNEL 91extern int dprintf_find_string(const char *string); 92#endif 93#endif /* illumos */ 94 95#ifdef __cplusplus 96} 97#endif 98 99#endif /* _SYS_ZFS_DEBUG_H */ 100