xfs_error.h

  1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
  4 * All Rights Reserved.
  5 */
  6#ifndef	__XFS_ERROR_H__
  7#define	__XFS_ERROR_H__
  8
  9struct xfs_mount;
 10
 11void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
 12		const char *filename, int linenum, xfs_failaddr_t failaddr);
 13void xfs_corruption_error(const char *tag, int level, struct xfs_mount *mp,
 14		const void *buf, size_t bufsize, const char *filename,
 15		int linenum, xfs_failaddr_t failaddr);
 16void xfs_buf_corruption_error(struct xfs_buf *bp, xfs_failaddr_t fa);
 17void xfs_buf_verifier_error(struct xfs_buf *bp, int error, const char *name,
 18		const void *buf, size_t bufsz, xfs_failaddr_t failaddr);
 19void xfs_verifier_error(struct xfs_buf *bp, int error, xfs_failaddr_t failaddr);
 20void xfs_inode_verifier_error(struct xfs_inode *ip, int error, const char *name,
 21		const void *buf, size_t bufsz, xfs_failaddr_t failaddr);
 22
 23#define	XFS_ERROR_REPORT(e, lvl, mp)	\
 24	xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
 25#define	XFS_CORRUPTION_ERROR(e, lvl, mp, buf, bufsize)	\
 26	xfs_corruption_error(e, lvl, mp, buf, bufsize, \
 27			     __FILE__, __LINE__, __return_address)
 28
 29#define XFS_ERRLEVEL_OFF	0
 30#define XFS_ERRLEVEL_LOW	1
 31#define XFS_ERRLEVEL_HIGH	5
 32
 33/* Dump 128 bytes of any corrupt buffer */
 34#define XFS_CORRUPTION_DUMP_LEN		(128)
 35
 36#ifdef DEBUG
 37int xfs_errortag_init(struct xfs_mount *mp);
 38void xfs_errortag_del(struct xfs_mount *mp);
 39bool xfs_errortag_test(struct xfs_mount *mp, const char *file, int line,
 40		unsigned int error_tag);
 41#define XFS_TEST_ERROR(mp, tag)		\
 42	xfs_errortag_test((mp), __FILE__, __LINE__, (tag))
 43bool xfs_errortag_enabled(struct xfs_mount *mp, unsigned int tag);
 44#define XFS_ERRORTAG_DELAY(mp, tag)		\
 45	do { \
 46		might_sleep(); \
 47		if (!xfs_errortag_enabled((mp), (tag))) \
 48			break; \
 49		xfs_warn_ratelimited((mp), \
 50"Injecting %ums delay at file %s, line %d, on filesystem \"%s\"", \
 51				(mp)->m_errortag[(tag)], __FILE__, __LINE__, \
 52				(mp)->m_super->s_id); \
 53		mdelay((mp)->m_errortag[(tag)]); \
 54	} while (0)
 55
 56int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
 57int xfs_errortag_clearall(struct xfs_mount *mp);
 58#else
 59#define xfs_errortag_init(mp)			(0)
 60#define xfs_errortag_del(mp)
 61#define XFS_TEST_ERROR(mp, tag)			(false)
 62#define XFS_ERRORTAG_DELAY(mp, tag)		((void)0)
 63#define xfs_errortag_add(mp, tag)		(ENOSYS)
 64#define xfs_errortag_clearall(mp)		(ENOSYS)
 65#endif /* DEBUG */
 66
 67/*
 68 * XFS panic tags -- allow a call to xfs_alert_tag() be turned into
 69 *			a panic by setting fs.xfs.panic_mask in a sysctl.
 70 */
 71#define		XFS_NO_PTAG			0u
 72#define		XFS_PTAG_IFLUSH			(1u << 0)
 73#define		XFS_PTAG_LOGRES			(1u << 1)
 74#define		XFS_PTAG_AILDELETE		(1u << 2)
 75#define		XFS_PTAG_ERROR_REPORT		(1u << 3)
 76#define		XFS_PTAG_SHUTDOWN_CORRUPT	(1u << 4)
 77#define		XFS_PTAG_SHUTDOWN_IOERROR	(1u << 5)
 78#define		XFS_PTAG_SHUTDOWN_LOGERROR	(1u << 6)
 79#define		XFS_PTAG_FSBLOCK_ZERO		(1u << 7)
 80#define		XFS_PTAG_VERIFIER_ERROR		(1u << 8)
 81
 82#define		XFS_PTAG_MASK	(XFS_PTAG_IFLUSH | \
 83				 XFS_PTAG_LOGRES | \
 84				 XFS_PTAG_AILDELETE | \
 85				 XFS_PTAG_ERROR_REPORT | \
 86				 XFS_PTAG_SHUTDOWN_CORRUPT | \
 87				 XFS_PTAG_SHUTDOWN_IOERROR | \
 88				 XFS_PTAG_SHUTDOWN_LOGERROR | \
 89				 XFS_PTAG_FSBLOCK_ZERO | \
 90				 XFS_PTAG_VERIFIER_ERROR)
 91
 92#define XFS_PTAG_STRINGS \
 93	{ XFS_NO_PTAG,			"none" }, \
 94	{ XFS_PTAG_IFLUSH,		"iflush" }, \
 95	{ XFS_PTAG_LOGRES,		"logres" }, \
 96	{ XFS_PTAG_AILDELETE,		"aildelete" }, \
 97	{ XFS_PTAG_ERROR_REPORT	,	"error_report" }, \
 98	{ XFS_PTAG_SHUTDOWN_CORRUPT,	"corrupt" }, \
 99	{ XFS_PTAG_SHUTDOWN_IOERROR,	"ioerror" }, \
100	{ XFS_PTAG_SHUTDOWN_LOGERROR,	"logerror" }, \
101	{ XFS_PTAG_FSBLOCK_ZERO,	"fsb_zero" }, \
102	{ XFS_PTAG_VERIFIER_ERROR,	"verifier" }
103
104#endif	/* __XFS_ERROR_H__ */