drivers/block/drbd/drbd_wrappers.h

   1 #ifndef _DRBD_WRAPPERS_H
   2 #define _DRBD_WRAPPERS_H
   3
   4 #include <linux/ctype.h>
   5 #include <linux/mm.h>
   6 #include "drbd_int.h"
   7
   8 /* see get_sb_bdev and bd_claim */
   9 extern char *drbd_sec_holder;
  10
  11 /* sets the number of 512 byte sectors of our virtual device */
  12 static inline void drbd_set_my_capacity(struct drbd_conf *mdev,
  13                                         sector_t size)
  14 {
  15         /* set_capacity(mdev->this_bdev->bd_disk, size); */
  16         set_capacity(mdev->vdisk, size);
  17         mdev->this_bdev->bd_inode->i_size = (loff_t)size << 9;
  18 }
  19
  20 #define drbd_bio_uptodate(bio) bio_flagged(bio, BIO_UPTODATE)
  21
  22 /* bi_end_io handlers */
  23 extern void drbd_md_io_complete(struct bio *bio, int error);
  24 extern void drbd_peer_request_endio(struct bio *bio, int error);
  25 extern void drbd_request_endio(struct bio *bio, int error);
  26
  27 /*
  28  * used to submit our private bio
  29  */
  30 static inline void drbd_generic_make_request(struct drbd_conf *mdev,
  31                                              int fault_type, struct bio *bio)
  32 {
  33         __release(local);
  34         if (!bio->bi_bdev) {
  35                 printk(KERN_ERR "drbd%d: drbd_generic_make_request: "
  36                                 "bio->bi_bdev == NULL\n",
  37                        mdev_to_minor(mdev));
  38                 dump_stack();
  39                 bio_endio(bio, -ENODEV);
  40                 return;
  41         }
  42
  43         if (drbd_insert_fault(mdev, fault_type))
  44                 bio_endio(bio, -EIO);
  45         else
  46                 generic_make_request(bio);
  47 }
  48
  49 #ifndef __CHECKER__
  50 # undef __cond_lock
  51 # define __cond_lock(x,c) (c)
  52 #endif
  53
  54 #endif