Lower minimum objects/slab threshold

[mirror_spl.git] / module / spl / spl-err.c

/*****************************************************************************\
 *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
 *  Copyright (C) 2007 The Regents of the University of California.
 *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
 *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
 *  UCRL-CODE-235197
 *
 *  This file is part of the SPL, Solaris Porting Layer.
 *  For details, see <http://zfsonlinux.org/>.
 *
 *  The SPL 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; either version 2 of the License, or (at your
 *  option) any later version.
 *
 *  The SPL is distributed in the hope that it will 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 the SPL.  If not, see <http://www.gnu.org/licenses/>.
 *****************************************************************************
 *  Solaris Porting Layer (SPL) Error Implementation.
\*****************************************************************************/

#include <sys/sysmacros.h>
#include <sys/cmn_err.h>
#include <spl-debug.h>

#ifdef SS_DEBUG_SUBSYS
#undef SS_DEBUG_SUBSYS
#endif

#define SS_DEBUG_SUBSYS SS_GENERIC

#ifdef DEBUG_LOG
static char ce_prefix[CE_IGNORE][10] = { "", "NOTICE: ", "WARNING: ", "" };
static char ce_suffix[CE_IGNORE][2] = { "", "\n", "\n", "" };
#endif

int
spl_PANIC(char *filename, const char *functionname,
    int lineno, const char *fmt, ...) {
	char msg[MAXMSGLEN];
	va_list ap;

	va_start(ap, fmt);
	if (vsnprintf(msg, sizeof (msg), fmt, ap) == sizeof (msg))
		msg[sizeof (msg) - 1] = '\0';
	va_end(ap);
#ifdef NDEBUG
	printk(KERN_EMERG "%s", msg);
#else
	spl_debug_msg(NULL, 0, 0,
	     filename, functionname, lineno, "%s", msg);
#endif
	spl_debug_bug(filename, functionname, lineno, 0);
	return 1;
}
EXPORT_SYMBOL(spl_PANIC);

void
vpanic(const char *fmt, va_list ap)
{
	char msg[MAXMSGLEN];

	vsnprintf(msg, MAXMSGLEN - 1, fmt, ap);
	PANIC("%s", msg);
} /* vpanic() */
EXPORT_SYMBOL(vpanic);

void
vcmn_err(int ce, const char *fmt, va_list ap)
{
	char msg[MAXMSGLEN];

	if (ce == CE_PANIC)
		vpanic(fmt, ap);

	if (ce != CE_NOTE) {
		vsnprintf(msg, MAXMSGLEN - 1, fmt, ap);

		if (fmt[0] == '!')
			SDEBUG(SD_INFO, "%s%s%s",
			       ce_prefix[ce], msg, ce_suffix[ce]);
		else
			SERROR("%s%s%s", ce_prefix[ce], msg, ce_suffix[ce]);
	}
} /* vcmn_err() */
EXPORT_SYMBOL(vcmn_err);

void
cmn_err(int ce, const char *fmt, ...)
{
	va_list ap;

	va_start(ap, fmt);
	vcmn_err(ce, fmt, ap);
	va_end(ap);
} /* cmn_err() */
EXPORT_SYMBOL(cmn_err);