cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

dm-rq.h (1219B)


      1/*
      2 * Internal header file for device mapper
      3 *
      4 * Copyright (C) 2016 Red Hat, Inc. All rights reserved.
      5 *
      6 * This file is released under the LGPL.
      7 */
      8
      9#ifndef DM_RQ_INTERNAL_H
     10#define DM_RQ_INTERNAL_H
     11
     12#include <linux/bio.h>
     13#include <linux/kthread.h>
     14
     15#include "dm-stats.h"
     16
     17struct mapped_device;
     18
     19/*
     20 * For request-based dm - the bio clones we allocate are embedded in these
     21 * structs.
     22 *
     23 * We allocate these with bio_alloc_bioset, using the front_pad parameter when
     24 * the bioset is created - this means the bio has to come at the end of the
     25 * struct.
     26 */
     27struct dm_rq_clone_bio_info {
     28	struct bio *orig;
     29	struct dm_rq_target_io *tio;
     30	struct bio clone;
     31};
     32
     33int dm_mq_init_request_queue(struct mapped_device *md, struct dm_table *t);
     34void dm_mq_cleanup_mapped_device(struct mapped_device *md);
     35
     36void dm_start_queue(struct request_queue *q);
     37void dm_stop_queue(struct request_queue *q);
     38
     39void dm_mq_kick_requeue_list(struct mapped_device *md);
     40
     41unsigned dm_get_reserved_rq_based_ios(void);
     42
     43ssize_t dm_attr_rq_based_seq_io_merge_deadline_show(struct mapped_device *md, char *buf);
     44ssize_t dm_attr_rq_based_seq_io_merge_deadline_store(struct mapped_device *md,
     45						     const char *buf, size_t count);
     46
     47#endif