text: /*
   * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
   * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
   *
   * This copyrighted material is made available to anyone wishing to use,
   * modify, copy, or redistribute it subject to the terms and conditions
   * of the GNU General Public License version 2.
   */
  
  #ifndef __UTIL_DOT_H__
  #define __UTIL_DOT_H__
  
  #include <linux/mempool.h>
  
  #include "incore.h"
  
  #define fs_printk(level, fs, fmt, arg...) \
  	printk(level "GFS2: fsid=%s: " fmt , (fs)->sd_fsname , ## arg)
  
  #define fs_info(fs, fmt, arg...) \
  	fs_printk(KERN_INFO , fs , fmt , ## arg)
  
  #define fs_warn(fs, fmt, arg...) \
  	fs_printk(KERN_WARNING , fs , fmt , ## arg)
  
  #define fs_err(fs, fmt, arg...) \
  	fs_printk(KERN_ERR, fs , fmt , ## arg)
  
  
  void gfs2_assert_i(struct gfs2_sbd *sdp);
  
  #define gfs2_assert(sdp, assertion) \
  do { \
  	if (unlikely(!(assertion))) { \
  		gfs2_assert_i(sdp); \
  		BUG(); \
          } \
  } while (0)
  
  
  int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
  			   const char *function, char *file, unsigned int line);
  
  #define gfs2_assert_withdraw(sdp, assertion) \
  ((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \
  					__func__, __FILE__, __LINE__))
  
  
  int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
  		       const char *function, char *file, unsigned int line);
  
  #define gfs2_assert_warn(sdp, assertion) \
  ((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \
  					__func__, __FILE__, __LINE__))
  
  
  int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide,
  		   const char *function, char *file, unsigned int line);
  
  #define gfs2_consist(sdp) \
  gfs2_consist_i((sdp), 0, __func__, __FILE__, __LINE__)
  
  
  int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
  			 const char *function, char *file, unsigned int line);
  
  #define gfs2_consist_inode(ip) \
  gfs2_consist_inode_i((ip), 0, __func__, __FILE__, __LINE__)
  
  
  int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
  			 const char *function, char *file, unsigned int line);
  
  #define gfs2_consist_rgrpd(rgd) \
  gfs2_consist_rgrpd_i((rgd), 0, __func__, __FILE__, __LINE__)
  
  
  int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
  		       const char *type, const char *function,
  		       char *file, unsigned int line);
  
  static inline int gfs2_meta_check_i(struct gfs2_sbd *sdp,
  				    struct buffer_head *bh,
  				    const char *function,
  				    char *file, unsigned int line)
  {
  	struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
  	u32 magic = be32_to_cpu(mh->mh_magic);
  	if (unlikely(magic != GFS2_MAGIC))
  		return gfs2_meta_check_ii(sdp, bh, "magic number", function,
  					  file, line);
  	return 0;
  }
  
  #define gfs2_meta_check(sdp, bh) \
  gfs2_meta_check_i((sdp), (bh), __func__, __FILE__, __LINE__)
  
  
  int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
  			   u16 type, u16 t,
  			   const char *function,
  			   char *file, unsigned int line);
  
  static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
  					struct buffer_head *bh,
  					u16 type,
  					const char *function,
  					char *file, unsigned int line)
  {
  	struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
  	u32 magic = be32_to_cpu(mh->mh_magic);
  	u16 t = be32_to_cpu(mh->mh_type);
  	if (unlikely(magic != GFS2_MAGIC))
  		return gfs2_meta_check_ii(sdp, bh, "magic number", function,
  					  file, line);
          if (unlikely(t != type))
  		return gfs2_metatype_check_ii(sdp, bh, type, t, function,
  					      file, line);
  	return 0;
  }
  
  #define gfs2_metatype_check(sdp, bh, type) \
  gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__)
  
  static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type,
  				     u16 format)
  {
  	struct gfs2_meta_header *mh;
  	mh = (struct gfs2_meta_header *)bh->b_data;
  	mh->mh_type = cpu_to_be32(type);
  	mh->mh_format = cpu_to_be32(format);
  }
  
  
  int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
  		    char *file, unsigned int line);
  
  #define gfs2_io_error(sdp) \
  gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__);
  
  
  int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
  		       const char *function, char *file, unsigned int line);
  
  #define gfs2_io_error_bh(sdp, bh) \
  gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__);
  
  
  extern struct kmem_cache *gfs2_glock_cachep;
  extern struct kmem_cache *gfs2_glock_aspace_cachep;
  extern struct kmem_cache *gfs2_inode_cachep;
  extern struct kmem_cache *gfs2_bufdata_cachep;
  extern struct kmem_cache *gfs2_rgrpd_cachep;
  extern struct kmem_cache *gfs2_quotad_cachep;
  extern struct kmem_cache *gfs2_rsrv_cachep;
  extern mempool_t *gfs2_page_pool;
  
  static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
  					   unsigned int *p)
  {
  	unsigned int x;
  	spin_lock(&gt->gt_spin);
  	x = *p;
  	spin_unlock(&gt->gt_spin);
  	return x;
  }
  
  #define gfs2_tune_get(sdp, field) \
  gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
  
  void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
  		      unsigned int bit, int new_value);
  int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...);
  
  #endif /* __UTIL_DOT_H__ */
  
  