From: Caleb Sander Mateos <csander@purestorage.com>
To: Ming Lei <tom.leiming@gmail.com>, Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
Caleb Sander Mateos <csander@purestorage.com>
Subject: [PATCH 7.2 0/2] ublk: optimize ublk_rq_has_data()
Date: Wed, 13 May 2026 15:18:44 -0600 [thread overview]
Message-ID: <20260513211846.1956810-1-csander@purestorage.com> (raw)
ublk_rq_has_data() currently uses bio_has_data(), which involves 2
indirections and several branches. Introduce a blk_rq_has_data()
analogue for struct request and use it instead to save an indirection
and NULL check.
Caleb Sander Mateos (2):
blk-mq: introduce blk_rq_has_data()
ublk: optimize ublk_rq_has_data()
drivers/block/ublk_drv.c | 21 ++++++++-------------
include/linux/blk-mq.h | 9 +++++++++
2 files changed, 17 insertions(+), 13 deletions(-)
--
2.54.0
next reply other threads:[~2026-05-13 21:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-13 21:18 Caleb Sander Mateos [this message]
2026-05-13 21:18 ` [PATCH 7.2 1/2] blk-mq: introduce blk_rq_has_data() Caleb Sander Mateos
2026-05-14 9:35 ` Ming Lei
2026-05-13 21:18 ` [PATCH 7.2 2/2] ublk: optimize ublk_rq_has_data() Caleb Sander Mateos
2026-05-14 9:36 ` Ming Lei
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