LXR linux/drivers/md/md-multipath.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _MULTIPATH_H
   3#define _MULTIPATH_H
   4
   5struct multipath_info {
   6        struct md_rdev  *rdev;
   7};
   8
   9struct mpconf {
  10        struct mddev                    *mddev;
  11        struct multipath_info   *multipaths;
  12        int                     raid_disks;
  13        spinlock_t              device_lock;
  14        struct list_head        retry_list;
  15
  16        mempool_t               pool;
  17};
  18
  19/*
  20 * this is our 'private' 'collective' MULTIPATH buffer head.
  21 * it contains information about what kind of IO operations were started
  22 * for this MULTIPATH operation, and about their status:
  23 */
  24
  25struct multipath_bh {
  26        struct mddev                    *mddev;
  27        struct bio              *master_bio;
  28        struct bio              bio;
  29        int                     path;
  30        struct list_head        retry_list;
  31};
  32#endif
  33