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Re: [PATCH 5/8] test-bdrv-drain: Take graph lock more selectively
From: |
Eric Blake |
Subject: |
Re: [PATCH 5/8] test-bdrv-drain: Take graph lock more selectively |
Date: |
Fri, 12 May 2023 11:26:51 -0500 |
User-agent: |
NeoMutt/20230512 |
On Wed, May 10, 2023 at 10:35:58PM +0200, Kevin Wolf wrote:
>
> If we take a reader lock, we can't call any functions that take a writer
> lock internally without causing deadlocks once the reader lock is
> actually enforced in the main thread, too. Take the reader lock only
> where it is actually needed.
>
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
> ---
> tests/unit/test-bdrv-drain.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Eric Blake <eblake@redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
- Re: [PATCH 2/8] block/export: Fix null pointer dereference in error path, (continued)
- [PATCH 3/8] qcow2: Unlock the graph in qcow2_do_open() where necessary, Kevin Wolf, 2023/05/10
- [PATCH 4/8] qemu-img: Take graph lock more selectively, Kevin Wolf, 2023/05/10
- [PATCH 6/8] test-bdrv-drain: Call bdrv_co_unref() in coroutine context, Kevin Wolf, 2023/05/10
- [PATCH 5/8] test-bdrv-drain: Take graph lock more selectively, Kevin Wolf, 2023/05/10
- Re: [PATCH 5/8] test-bdrv-drain: Take graph lock more selectively,
Eric Blake <=
- [PATCH 7/8] blockjob: Adhere to rate limit even when reentered early, Kevin Wolf, 2023/05/10
- [PATCH 8/8] graph-lock: Honour read locks even in the main thread, Kevin Wolf, 2023/05/10