From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/md/dm-rq.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 drivers/md/dm-rq.h (limited to 'drivers/md/dm-rq.h') diff --git a/drivers/md/dm-rq.h b/drivers/md/dm-rq.h new file mode 100644 index 000000000..2c97ad145 --- /dev/null +++ b/drivers/md/dm-rq.h @@ -0,0 +1,47 @@ +/* + * Internal header file for device mapper + * + * Copyright (C) 2016 Red Hat, Inc. All rights reserved. + * + * This file is released under the LGPL. + */ + +#ifndef DM_RQ_INTERNAL_H +#define DM_RQ_INTERNAL_H + +#include +#include + +#include "dm-stats.h" + +struct mapped_device; + +/* + * For request-based dm - the bio clones we allocate are embedded in these + * structs. + * + * We allocate these with bio_alloc_bioset, using the front_pad parameter when + * the bioset is created - this means the bio has to come at the end of the + * struct. + */ +struct dm_rq_clone_bio_info { + struct bio *orig; + struct dm_rq_target_io *tio; + struct bio clone; +}; + +int dm_mq_init_request_queue(struct mapped_device *md, struct dm_table *t); +void dm_mq_cleanup_mapped_device(struct mapped_device *md); + +void dm_start_queue(struct request_queue *q); +void dm_stop_queue(struct request_queue *q); + +void dm_mq_kick_requeue_list(struct mapped_device *md); + +unsigned int dm_get_reserved_rq_based_ios(void); + +ssize_t dm_attr_rq_based_seq_io_merge_deadline_show(struct mapped_device *md, char *buf); +ssize_t dm_attr_rq_based_seq_io_merge_deadline_store(struct mapped_device *md, + const char *buf, size_t count); + +#endif -- cgit v1.2.3