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dm/core: Reduce the size of struct dm_io_request

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Combine the bi_op and bi_op_flags into the bi_opf member. Use the new
blk_opf_t type to improve static type checking. This patch does not
change any functionality.

Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mike Snitzer <snitzer@kernel.org>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220714180729.1065367-22-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Bart Van Assche
2022-07-14 11:06:47 -07:00
committed by Jens Axboe
parent 7ee1de6e27
commit 581075e4f6
9 changed files with 29 additions and 45 deletions
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4
include/linux/dm-io.h
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@@ -13,6 +13,7 @@
#ifdef __KERNEL__
#include <linux/types.h>
#include <linux/blk_types.h>
struct dm_io_region {
struct block_device *bdev;
@@ -57,8 +58,7 @@ struct dm_io_notify {
*/
struct dm_io_client;
struct dm_io_request {
int bi_op; /* REQ_OP */
int bi_op_flags; /* req_flag_bits */
blk_opf_t bi_opf; /* Request type and flags */
struct dm_io_memory mem; /* Memory to use for io */
struct dm_io_notify notify; /* Synchronous if notify.fn is NULL */
struct dm_io_client *client; /* Client memory handler */