/*
   * 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_error.h"

  #include "xfs_format.h"

  #include "xfs_log_format.h"
  #include "xfs_trans_resv.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
  ", level, mp->m_fsname, vaf);

  		return;
  	}

  	printk("%sXFS: %pV
  ", 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;				\

  	int			level;				\

  								\
  	va_start(args, fmt);					\
  								\
  	vaf.fmt = fmt;						\
  	vaf.va = &args;						\
  								\

  	__xfs_printk(kern_level, mp, &vaf);			\

  	va_end(args);						\

  								\
  	if (!kstrtoint(kern_level, 0, &level) &&		\
  	    level <= LOGLEVEL_ERR &&				\
  	    xfs_error_level >= XFS_ERRLEVEL_HIGH)		\
  		xfs_stack_trace();				\

  }								\
  
  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);
  }