fs/gfs2/lops.h

   1 /*
   2  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
   3  * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
   4  *
   5  * This copyrighted material is made available to anyone wishing to use,
   6  * modify, copy, or redistribute it subject to the terms and conditions
   7  * of the GNU General Public License v.2.
   8  */
   9
  10 #ifndef __LOPS_DOT_H__
  11 #define __LOPS_DOT_H__
  12
  13 extern struct gfs2_log_operations gfs2_glock_lops;
  14 extern struct gfs2_log_operations gfs2_buf_lops;
  15 extern struct gfs2_log_operations gfs2_revoke_lops;
  16 extern struct gfs2_log_operations gfs2_rg_lops;
  17 extern struct gfs2_log_operations gfs2_databuf_lops;
  18
  19 extern struct gfs2_log_operations *gfs2_log_ops[];
  20
  21 static inline void lops_init_le(struct gfs2_log_element *le,
  22                                 struct gfs2_log_operations *lops)
  23 {
  24         INIT_LIST_HEAD(&le->le_list);
  25         le->le_ops = lops;
  26 }
  27
  28 static inline void lops_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
  29 {
  30         if (le->le_ops->lo_add)
  31                 le->le_ops->lo_add(sdp, le);
  32 }
  33
  34 static inline void lops_incore_commit(struct gfs2_sbd *sdp,
  35                                       struct gfs2_trans *tr)
  36 {
  37         int x;
  38         for (x = 0; gfs2_log_ops[x]; x++)
  39                 if (gfs2_log_ops[x]->lo_incore_commit)
  40                         gfs2_log_ops[x]->lo_incore_commit(sdp, tr);
  41 }
  42
  43 static inline void lops_before_commit(struct gfs2_sbd *sdp)
  44 {
  45         int x;
  46         for (x = 0; gfs2_log_ops[x]; x++)
  47                 if (gfs2_log_ops[x]->lo_before_commit)
  48                         gfs2_log_ops[x]->lo_before_commit(sdp);
  49 }
  50
  51 static inline void lops_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
  52 {
  53         int x;
  54         for (x = 0; gfs2_log_ops[x]; x++)
  55                 if (gfs2_log_ops[x]->lo_after_commit)
  56                         gfs2_log_ops[x]->lo_after_commit(sdp, ai);
  57 }
  58
  59 static inline void lops_before_scan(struct gfs2_jdesc *jd,
  60                                     struct gfs2_log_header *head,
  61                                     unsigned int pass)
  62 {
  63         int x;
  64         for (x = 0; gfs2_log_ops[x]; x++)
  65                 if (gfs2_log_ops[x]->lo_before_scan)
  66                         gfs2_log_ops[x]->lo_before_scan(jd, head, pass);
  67 }
  68
  69 static inline int lops_scan_elements(struct gfs2_jdesc *jd, unsigned int start,
  70                                      struct gfs2_log_descriptor *ld,
  71                                      __be64 *ptr,
  72                                      unsigned int pass)
  73 {
  74         int x, error;
  75         for (x = 0; gfs2_log_ops[x]; x++)
  76                 if (gfs2_log_ops[x]->lo_scan_elements) {
  77                         error = gfs2_log_ops[x]->lo_scan_elements(jd, start,
  78                                                                   ld, ptr, pass);
  79                         if (error)
  80                                 return error;
  81                 }
  82
  83         return 0;
  84 }
  85
  86 static inline void lops_after_scan(struct gfs2_jdesc *jd, int error,
  87                                    unsigned int pass)
  88 {
  89         int x;
  90         for (x = 0; gfs2_log_ops[x]; x++)
  91                 if (gfs2_log_ops[x]->lo_before_scan)
  92                         gfs2_log_ops[x]->lo_after_scan(jd, error, pass);
  93 }
  94
  95 #endif /* __LOPS_DOT_H__ */
  96