From: Kevin Wolf <kwolf@redhat.com>
To: qemu-block@nongnu.org
Cc: kwolf@redhat.com, vsementsov@virtuozzo.com, s.reiter@proxmox.com,
qemu-devel@nongnu.org, dietmar@proxmox.com, stefanha@redhat.com,
mreitz@redhat.com, t.lamprecht@proxmox.com
Subject: [PATCH for-5.0 v2 0/3] block: Fix blk->in_flight during blk_wait_while_drained()
Date: Mon, 6 Apr 2020 19:14:00 +0200 [thread overview]
Message-ID: <20200406171403.6761-1-kwolf@redhat.com> (raw)
This fixes deadlocks when draining a BlockBackend in an iothread that
receives new requests at the same time.
v2:
- Rework the whole thing so that direct callers of blk_co_*() aren't
broken after the series [Max]
Kevin Wolf (3):
block-backend: Reorder flush/pdiscard function definitions
block: Increase BB.in_flight for coroutine interfaces
block: Fix blk->in_flight during blk_wait_while_drained()
include/sysemu/block-backend.h | 1 -
block/block-backend.c | 199 +++++++++++++++++++++------------
2 files changed, 125 insertions(+), 75 deletions(-)
--
2.20.1
next reply other threads:[~2020-04-06 17:15 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-06 17:14 Kevin Wolf [this message]
2020-04-06 17:14 ` [PATCH for-5.0 v2 1/3] block-backend: Reorder flush/pdiscard function definitions Kevin Wolf
2020-04-07 5:45 ` Vladimir Sementsov-Ogievskiy
2020-04-07 9:22 ` Max Reitz
2020-04-06 17:14 ` [PATCH for-5.0 v2 2/3] block: Increase BB.in_flight for coroutine interfaces Kevin Wolf
2020-04-07 6:41 ` Vladimir Sementsov-Ogievskiy
2020-04-07 8:52 ` Kevin Wolf
2020-04-07 9:10 ` Vladimir Sementsov-Ogievskiy
2020-04-07 9:48 ` Kevin Wolf
2020-04-07 10:00 ` Vladimir Sementsov-Ogievskiy
2020-04-07 10:04 ` Max Reitz
2020-04-07 10:15 ` Max Reitz
2020-04-07 11:13 ` Kevin Wolf
2020-04-07 11:27 ` Max Reitz
2020-04-06 17:14 ` [PATCH for-5.0 v2 3/3] block: Fix blk->in_flight during blk_wait_while_drained() Kevin Wolf
2020-04-07 6:52 ` Vladimir Sementsov-Ogievskiy
2020-04-07 8:59 ` Kevin Wolf
2020-04-07 9:15 ` Vladimir Sementsov-Ogievskiy
2020-04-07 10:12 ` Max Reitz
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