/usr/include/libzfs/sys/zfs_debug.h is in libzfslinux-dev 0.7.5-1ubuntu15.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012, 2014 by Delphix. All rights reserved.
*/
#ifndef _SYS_ZFS_DEBUG_H
#define _SYS_ZFS_DEBUG_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
extern int zfs_flags;
extern int zfs_recover;
extern int zfs_free_leak_on_eio;
#define ZFS_DEBUG_DPRINTF (1 << 0)
#define ZFS_DEBUG_DBUF_VERIFY (1 << 1)
#define ZFS_DEBUG_DNODE_VERIFY (1 << 2)
#define ZFS_DEBUG_SNAPNAMES (1 << 3)
#define ZFS_DEBUG_MODIFY (1 << 4)
#define ZFS_DEBUG_SPA (1 << 5)
#define ZFS_DEBUG_ZIO_FREE (1 << 6)
#define ZFS_DEBUG_HISTOGRAM_VERIFY (1 << 7)
#define ZFS_DEBUG_METASLAB_VERIFY (1 << 8)
#define ZFS_DEBUG_SET_ERROR (1 << 9)
extern void __dprintf(const char *file, const char *func,
int line, const char *fmt, ...);
#define dprintf(...) \
__dprintf(__FILE__, __func__, __LINE__, __VA_ARGS__)
#define zfs_dbgmsg(...) \
__dprintf(__FILE__, __func__, __LINE__, __VA_ARGS__)
extern void zfs_panic_recover(const char *fmt, ...);
typedef struct zfs_dbgmsg {
list_node_t zdm_node;
time_t zdm_timestamp;
int zdm_size;
char zdm_msg[1]; /* variable length allocation */
} zfs_dbgmsg_t;
extern void zfs_dbgmsg_init(void);
extern void zfs_dbgmsg_fini(void);
#ifndef _KERNEL
extern int dprintf_find_string(const char *string);
extern void zfs_dbgmsg_print(const char *tag);
#endif
#ifdef __cplusplus
}
#endif
#endif /* _SYS_ZFS_DEBUG_H */
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