[PATCHSET,v2,0/5] Alloc batch fixes

Message ID	20211104152204.57360-1-axboe@kernel.dk (mailing list archive)
Headers	show Return-Path: <linux-block-owner@kernel.org> From: Jens Axboe <axboe@kernel.dk> To: linux-block@vger.kernel.org Subject: [PATCHSET v2 0/5] Alloc batch fixes Date: Thu, 4 Nov 2021 09:21:59 -0600 Message-Id: <20211104152204.57360-1-axboe@kernel.dk> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	Alloc batch fixes \| expand [PATCHSET,v2,0/5] Alloc batch fixes [1/5] block: have plug stored requests hold references to the queue [2/5] block: make blk_try_enter_queue() available for blk-mq [3/5] block: move plug rq alloc into helper [4/5] block: move queue enter logic into blk_mq_submit_bio() [5/5] block: ensure cached plug request matches the current queue

Message ID

20211104152204.57360-1-axboe@kernel.dk (mailing list archive)

Headers

From: Jens Axboe <axboe@kernel.dk>
To: linux-block@vger.kernel.org
Subject: [PATCHSET v2 0/5] Alloc batch fixes
Date: Thu,  4 Nov 2021 09:21:59 -0600
Message-Id: <20211104152204.57360-1-axboe@kernel.dk>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Series

Alloc batch fixes | expand

Message

Jens Axboe Nov. 4, 2021, 3:21 p.m. UTC

Hi,

A few fixes related to the batched allocations:

- Have the requests hold a queue reference, flush them on schedule
  unplug as well.

- Make sure the queue matches, could be a mismatch if we're driving
  multiple devices.

Since v1:

- Reshuffle series to do plug rq alloc helper before enter changes
- Protect submit_bio_checks() by queue enter reference as well