From: Kevin Wolf <kwolf@redhat.com>
To: Fiona Ebner <f.ebner@proxmox.com>
Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org, den@virtuozzo.com,
andrey.drobyshev@virtuozzo.com, hreitz@redhat.com,
stefanha@redhat.com, eblake@redhat.com, jsnow@redhat.com,
vsementsov@yandex-team.ru, xiechanglong.d@gmail.com,
wencongyang2@huawei.com, berto@igalia.com, fam@euphon.net,
ari@tuxera.com
Subject: Re: [PATCH v2 02/24] block: move drain outside of read-locked bdrv_reopen_queue_child()
Date: Wed, 21 May 2025 11:45:38 +0200 [thread overview]
Message-ID: <aC2gwvnJiCPxoHJs@redhat.com> (raw)
In-Reply-To: <20250520103012.424311-3-f.ebner@proxmox.com>
Am 20.05.2025 um 12:29 hat Fiona Ebner geschrieben:
> This is in preparation to mark bdrv_drained_begin() as GRAPH_UNLOCKED.
>
> More granular draining is not trivially possible, because
> bdrv_reopen_queue_child() can recursively call itself.
>
> Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
next prev parent reply other threads:[~2025-05-21 9:46 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-20 10:29 [PATCH v2 00/24] block: do not drain while holding the graph lock Fiona Ebner
2025-05-20 10:29 ` [PATCH v2 01/24] block: remove outdated comments about AioContext locking Fiona Ebner
2025-05-21 9:41 ` Kevin Wolf
2025-05-20 10:29 ` [PATCH v2 02/24] block: move drain outside of read-locked bdrv_reopen_queue_child() Fiona Ebner
2025-05-21 9:45 ` Kevin Wolf [this message]
2025-05-20 10:29 ` [PATCH v2 03/24] block/snapshot: move drain outside of read-locked bdrv_snapshot_delete() Fiona Ebner
2025-05-21 9:53 ` Kevin Wolf
2025-05-23 18:12 ` Andrey Drobyshev
2025-05-26 9:10 ` Kevin Wolf
2025-05-26 10:33 ` Fiona Ebner
2025-05-26 11:42 ` Kevin Wolf
2025-05-20 10:29 ` [PATCH v2 04/24] block: move drain outside of read-locked bdrv_inactivate_recurse() Fiona Ebner
2025-05-21 9:56 ` Kevin Wolf
2025-05-20 10:29 ` [PATCH v2 05/24] block: mark bdrv_parent_change_aio_context() GRAPH_RDLOCK Fiona Ebner
2025-05-21 10:04 ` Kevin Wolf
2025-05-20 10:29 ` [PATCH v2 06/24] block: mark change_aio_ctx() callback and instances as GRAPH_RDLOCK(_PTR) Fiona Ebner
2025-05-20 15:47 ` Eric Blake
2025-05-21 15:23 ` Kevin Wolf
2025-05-20 10:29 ` [PATCH v2 07/24] block: mark bdrv_child_change_aio_context() GRAPH_RDLOCK Fiona Ebner
2025-05-20 15:48 ` Eric Blake
2025-05-21 15:28 ` Kevin Wolf
2025-05-23 17:20 ` Andrey Drobyshev
2025-05-26 9:05 ` Kevin Wolf
2025-05-20 10:29 ` [PATCH v2 08/24] block: move drain outside of bdrv_change_aio_context() and mark GRAPH_RDLOCK Fiona Ebner
2025-05-21 16:05 ` Kevin Wolf
2025-05-22 9:09 ` Fiona Ebner
2025-05-22 12:05 ` Kevin Wolf
2025-05-20 10:29 ` [PATCH v2 09/24] block: move drain outside of bdrv_try_change_aio_context() Fiona Ebner
2025-05-21 16:36 ` Kevin Wolf
2025-05-22 9:56 ` Fiona Ebner
2025-05-22 12:36 ` Kevin Wolf
2025-05-20 10:29 ` [PATCH v2 10/24] block: move drain outside of bdrv_attach_child_common(_abort)() Fiona Ebner
2025-05-20 10:29 ` [PATCH v2 11/24] block: move drain outside of bdrv_set_backing_hd_drained() Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 12/24] block: move drain outside of bdrv_root_attach_child() Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 13/24] block: move drain outside of bdrv_attach_child() Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 14/24] block: move drain outside of quorum_add_child() Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 15/24] block: move drain outside of bdrv_root_unref_child() Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 16/24] block: move drain outside of quorum_del_child() Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 17/24] blockdev: drain while unlocked in internal_snapshot_action() Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 18/24] blockdev: drain while unlocked in external_snapshot_action() Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 19/24] block: mark bdrv_drained_begin() as GRAPH_UNLOCKED Fiona Ebner
2025-05-23 17:20 ` Andrey Drobyshev
2025-05-20 10:30 ` [PATCH v2 20/24] iotests/graph-changes-while-io: remove image file after test Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 21/24] iotests/graph-changes-while-io: add test case with removal of lower snapshot Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 22/24] block/io: remove duplicate GLOBAL_STATE_CODE() in bdrv_do_drained_end() Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 23/24] block: never use atomics to access bs->quiesce_counter Fiona Ebner
2025-05-20 10:30 ` [PATCH v2 24/24] block: add bdrv_graph_wrlock_drained() convenience wrapper Fiona Ebner
2025-05-20 15:54 ` Eric Blake
2025-05-20 15:44 ` [PATCH v2 00/24] block: do not drain while holding the graph lock Eric Blake
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