linux-kernel - [PATCH v3 0/2] dm crypt: some fixes to support dm-crypt running in softirq context

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Message-Id: <20210104145948.1857-1-ignat@cloudflare.com>
Date:   Mon,  4 Jan 2021 14:59:46 +0000
From:   Ignat Korchagin <ignat@...udflare.com>
To:     agk@...hat.com, snitzer@...hat.com, dm-devel@...hat.com,
        dm-crypt@...ut.de, linux-kernel@...r.kernel.org
Cc:     Ignat Korchagin <ignat@...udflare.com>, ebiggers@...nel.org,
        Damien.LeMoal@....com, mpatocka@...hat.com,
        herbert@...dor.apana.org.au, kernel-team@...udflare.com,
        nobuto.murata@...onical.com, clm@...com, josef@...icpanda.com,
        dsterba@...e.com, linux-btrfs@...r.kernel.org,
        mail@...iej.szmigiero.name
Subject: [PATCH v3 0/2] dm crypt: some fixes to support dm-crypt running in softirq context

Changes from v1:
  * 0001: handle memory allocation failure for GFP_ATOMIC

Changes from v2:
  * reordered patches
  * 0002: crypt_convert will be retried from a workqueue, when a crypto request
    allocation fails with GFP_ATOMIC instead of just returning an IO error to
    the user

Ignat Korchagin (2):
  dm crypt: do not wait for backlogged crypto request completion in
    softirq
  dm crypt: use GFP_ATOMIC when allocating crypto requests from softirq

 drivers/md/dm-crypt.c | 138 +++++++++++++++++++++++++++++++++++++-----
 1 file changed, 123 insertions(+), 15 deletions(-)

-- 
2.20.1