mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-17 10:01:01 +03:00
3c941d1818
And, make the output fd an arg to zfs_dbgmsg_print(). This is a change in behaviour, but keeps it consistent with where crash traces go, and it's easy to argue this is what we want anyway; this is information about the task, not the actual output of the task. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rob Norris <rob.norris@klarasystems.com> Closes #16181
115 lines
3.5 KiB
C
115 lines
3.5 KiB
C
/*
|
|
* 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 https://opensource.org/licenses/CDDL-1.0.
|
|
* 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, 2019 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;
|
|
extern int zfs_dbgmsg_enable;
|
|
|
|
#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)
|
|
/* 1<<5 was previously used, try not to reuse */
|
|
#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)
|
|
#define ZFS_DEBUG_INDIRECT_REMAP (1 << 10)
|
|
#define ZFS_DEBUG_TRIM (1 << 11)
|
|
#define ZFS_DEBUG_LOG_SPACEMAP (1 << 12)
|
|
#define ZFS_DEBUG_METASLAB_ALLOC (1 << 13)
|
|
#define ZFS_DEBUG_BRT (1 << 14)
|
|
#define ZFS_DEBUG_RAIDZ_RECONSTRUCT (1 << 15)
|
|
|
|
extern void __set_error(const char *file, const char *func, int line, int err);
|
|
extern void __zfs_dbgmsg(char *buf);
|
|
extern void __dprintf(boolean_t dprint, const char *file, const char *func,
|
|
int line, const char *fmt, ...) __attribute__((format(printf, 5, 6)));
|
|
|
|
/*
|
|
* Some general principles for using zfs_dbgmsg():
|
|
* 1. We don't want to pollute the log with typically-irrelevant messages,
|
|
* so don't print too many messages in the "normal" code path - O(1)
|
|
* per txg.
|
|
* 2. We want to know for sure what happened, so make the message specific
|
|
* (e.g. *which* thing am I operating on).
|
|
* 3. Do print a message when something unusual or unexpected happens
|
|
* (e.g. error cases).
|
|
* 4. Print a message when making user-initiated on-disk changes.
|
|
*
|
|
* Note that besides principle 1, another reason that we don't want to
|
|
* use zfs_dbgmsg in high-frequency routines is the potential impact
|
|
* that it can have on performance.
|
|
*/
|
|
#define zfs_dbgmsg(...) \
|
|
if (zfs_dbgmsg_enable) \
|
|
__dprintf(B_FALSE, __FILE__, __func__, __LINE__, __VA_ARGS__)
|
|
|
|
#ifdef ZFS_DEBUG
|
|
/*
|
|
* To enable this:
|
|
*
|
|
* $ echo 1 >/sys/module/zfs/parameters/zfs_flags
|
|
*/
|
|
#define dprintf(...) \
|
|
if (zfs_flags & ZFS_DEBUG_DPRINTF) \
|
|
__dprintf(B_TRUE, __FILE__, __func__, __LINE__, __VA_ARGS__)
|
|
#else
|
|
#define dprintf(...) ((void)0)
|
|
#endif /* ZFS_DEBUG */
|
|
|
|
extern void zfs_panic_recover(const char *fmt, ...);
|
|
|
|
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(int fd, const char *tag);
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _SYS_ZFS_DEBUG_H */
|