[linux-2.6-block.git] / fs / xfs / xfs_message.c

/*
 * Copyright (c) 2011 Red Hat, Inc.  All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_mount.h"

/*
 * XFS logging functions
 */
static void
__xfs_printk(
	const char		*level,
	const struct xfs_mount	*mp,
	struct va_format	*vaf)
{
	if (mp && mp->m_fsname) {
		printk("%sXFS (%s): %pV\n", level, mp->m_fsname, vaf);
		return;
	}
	printk("%sXFS: %pV\n", level, vaf);
}

#define define_xfs_printk_level(func, kern_level)		\
void func(const struct xfs_mount *mp, const char *fmt, ...)	\
{								\
	struct va_format	vaf;				\
	va_list			args;				\
								\
	va_start(args, fmt);					\
								\
	vaf.fmt = fmt;						\
	vaf.va = &args;						\
								\
	__xfs_printk(kern_level, mp, &vaf);			\
	va_end(args);						\
}								\

define_xfs_printk_level(xfs_emerg, KERN_EMERG);
define_xfs_printk_level(xfs_alert, KERN_ALERT);
define_xfs_printk_level(xfs_crit, KERN_CRIT);
define_xfs_printk_level(xfs_err, KERN_ERR);
define_xfs_printk_level(xfs_warn, KERN_WARNING);
define_xfs_printk_level(xfs_notice, KERN_NOTICE);
define_xfs_printk_level(xfs_info, KERN_INFO);
#ifdef DEBUG
define_xfs_printk_level(xfs_debug, KERN_DEBUG);
#endif

void
xfs_alert_tag(
	const struct xfs_mount	*mp,
	int			panic_tag,
	const char		*fmt, ...)
{
	struct va_format	vaf;
	va_list			args;
	int			do_panic = 0;

	if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) {
		xfs_alert(mp, "Transforming an alert into a BUG.");
		do_panic = 1;
	}

	va_start(args, fmt);

	vaf.fmt = fmt;
	vaf.va = &args;

	__xfs_printk(KERN_ALERT, mp, &vaf);
	va_end(args);

	BUG_ON(do_panic);
}

void
asswarn(char *expr, char *file, int line)
{
	xfs_warn(NULL, "Assertion failed: %s, file: %s, line: %d",
		expr, file, line);
	WARN_ON(1);
}

void
assfail(char *expr, char *file, int line)
{
	xfs_emerg(NULL, "Assertion failed: %s, file: %s, line: %d",
		expr, file, line);
	BUG();
}

void
xfs_hex_dump(void *p, int length)
{
	print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_ADDRESS, 16, 1, p, length, 1);
}
Commit	Line	Data
10e38391 DC	1	/*
	2	* Copyright (c) 2011 Red Hat, Inc. All Rights Reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License as
	6	* published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it would be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*
	13	* You should have received a copy of the GNU General Public License
	14	* along with this program; if not, write the Free Software Foundation,
	15	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	16	*/
	17
	18	#include "xfs.h"
	19	#include "xfs_fs.h"
239880ef DC	20	#include "xfs_log_format.h"
239880ef DC	21	#include "xfs_trans_resv.h"
10e38391 DC	22	#include "xfs_sb.h"
	23	#include "xfs_ag.h"
	24	#include "xfs_mount.h"
	25
	26	/*
	27	* XFS logging functions
	28	*/
957935dc	29	static void
10e38391 DC	30	__xfs_printk(
	31	const char *level,
	32	const struct xfs_mount *mp,
	33	struct va_format *vaf)
	34	{
3eff1268	35	if (mp && mp->m_fsname) {
957935dc	36	printk("%sXFS (%s): %pV\n", level, mp->m_fsname, vaf);
3eff1268 DC	37	return;
3eff1268 DC	38	}
957935dc	39	printk("%sXFS: %pV\n", level, vaf);
10e38391 DC	40	}
10e38391 DC	41
10e38391	42	#define define_xfs_printk_level(func, kern_level) \
957935dc	43	void func(const struct xfs_mount mp, const char fmt, ...) \
10e38391 DC	44	{ \
	45	struct va_format vaf; \
	46	va_list args; \
10e38391 DC	47	\
	48	va_start(args, fmt); \
	49	\
	50	vaf.fmt = fmt; \
	51	vaf.va = &args; \
	52	\
957935dc	53	__xfs_printk(kern_level, mp, &vaf); \
10e38391	54	va_end(args); \
10e38391 DC	55	} \
	56
	57	define_xfs_printk_level(xfs_emerg, KERN_EMERG);
	58	define_xfs_printk_level(xfs_alert, KERN_ALERT);
	59	define_xfs_printk_level(xfs_crit, KERN_CRIT);
	60	define_xfs_printk_level(xfs_err, KERN_ERR);
	61	define_xfs_printk_level(xfs_warn, KERN_WARNING);
	62	define_xfs_printk_level(xfs_notice, KERN_NOTICE);
	63	define_xfs_printk_level(xfs_info, KERN_INFO);
	64	#ifdef DEBUG
	65	define_xfs_printk_level(xfs_debug, KERN_DEBUG);
	66	#endif
	67
957935dc	68	void
10e38391 DC	69	xfs_alert_tag(
	70	const struct xfs_mount *mp,
	71	int panic_tag,
	72	const char *fmt, ...)
	73	{
	74	struct va_format vaf;
	75	va_list args;
0c9ba973	76	int do_panic = 0;
10e38391 DC	77
10e38391 DC	78	if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) {
e69522a8	79	xfs_alert(mp, "Transforming an alert into a BUG.");
0c9ba973	80	do_panic = 1;
10e38391 DC	81	}
	82
	83	va_start(args, fmt);
	84
	85	vaf.fmt = fmt;
	86	vaf.va = &args;
	87
957935dc	88	__xfs_printk(KERN_ALERT, mp, &vaf);
10e38391 DC	89	va_end(args);
10e38391 DC	90
0c9ba973	91	BUG_ON(do_panic);
10e38391	92	}
9130090b	93
742ae1e3 DC	94	void
	95	asswarn(char expr, char file, int line)
	96	{
	97	xfs_warn(NULL, "Assertion failed: %s, file: %s, line: %d",
	98	expr, file, line);
	99	WARN_ON(1);
	100	}
	101
9130090b DC	102	void
	103	assfail(char expr, char file, int line)
	104	{
	105	xfs_emerg(NULL, "Assertion failed: %s, file: %s, line: %d",
	106	expr, file, line);
	107	BUG();
	108	}
	109
	110	void
	111	xfs_hex_dump(void *p, int length)
	112	{
	113	print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_ADDRESS, 16, 1, p, length, 1);
	114	}