linux-kernel - [RESEND RFC PATCH 0/2] Fix misuse of blk_rq

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Message-Id: <cover.1560510935.git.asml.silence@gmail.com>
Date:   Thu, 25 Jul 2019 00:35:08 +0300
From:   "Pavel Begunkov (Silence)" <asml.silence@...il.com>
To:     Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, josef@...icpanda.com
Cc:     Pavel Begunkov <asml.silence@...il.com>
Subject: [RESEND RFC PATCH 0/2] Fix misuse of blk_rq_stats in blk-iolatency

From: Pavel Begunkov <asml.silence@...il.com>

There are implicit assumptions about struct blk_rq_stats, which make
it's very easy to misuse. The first patch fixes consequences, and the
second employs type-system to prevent recurrences.

Acked-by: Josef Bacik <josef@...icpanda.com>

Pavel Begunkov (2):
  blk-iolatency: Fix zero mean in previous stats
  blk-stats: Introduce explicit stat staging buffers

 block/blk-iolatency.c     | 60 ++++++++++++++++++++++++++++++---------
 block/blk-stat.c          | 48 +++++++++++++++++++++++--------
 block/blk-stat.h          |  9 ++++--
 include/linux/blk_types.h |  6 ++++
 4 files changed, 94 insertions(+), 29 deletions(-)

-- 
2.22.0