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[Qemu-commits] [qemu/qemu] 639457: block/io: Check for replay-enabled in

From: Peter Maydell
Subject: [Qemu-commits] [qemu/qemu] 639457: block/io: Check for replay-enabled in bdrv_drain_a...
Date: Wed, 21 Dec 2022 04:43:53 -0800

  Branch: refs/heads/staging
  Home:   https://github.com/qemu/qemu
  Commit: 6394578984da00564d6a3515940732ff9b83cd10
  Author: Peter Maydell <peter.maydell@linaro.org>
  Date:   2022-12-21 (Wed, 21 Dec 2022)

  Changed paths:
    M block/io.c

  Log Message:
  block/io: Check for replay-enabled in bdrv_drain_all_begin()

In commit da0bd74434 we refactored bdrv_drain_all_begin() to pull out
the non-polling part into bdrv_drain_all_begin_nopoll().  This change
broke record-and-replay, because the "return early if replay enabled"
check is now in the sub-function bdrv_drain_all_begin_nopoll(), and
so it only causes us to return from that function, and not from the
calling bdrv_drain_all_begin().

Fix the regression by checking whether replay is enabled in both

The breakage and fix can be tested via 'make check-avocado': the
tests were both broken by this.

Fixes: da0bd744344adb1f285 ("block: Factor out bdrv_drain_all_begin_nopoll()")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Fabiano Rosas <farosas@suse.de>
Message-id: 20221220174638.2156308-1-peter.maydell@linaro.org

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