From: Olaf Hering <olaf@aepfle.de>
To: Kevin Wolf <kwolf@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>
Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org
Subject: [Qemu-devel] bogus bdrv_check_request in bdrv_co_discard
Date: Wed, 9 Mar 2016 13:11:40 +0100 [thread overview]
Message-ID: <20160309121139.GA21975@aepfle.de> (raw)
What is the purpose of the bdrv_check_request() call in bdrv_co_discard?
It seems a frontend cant possibly know what the limit is in the
qemu-of-the-day, I found no interface to propagate
BDRV_REQUEST_MAX_SECTORS into the guest.
I think to handle nb_sectors > BDRV_REQUEST_MAX_SECTORS bdrv_co_discard
has to split the request into smaller chunks, just as it does a few
lines down in the function.
Olaf
next reply other threads:[~2016-03-09 12:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-09 12:11 Olaf Hering [this message]
2016-03-09 12:29 ` [Qemu-devel] bogus bdrv_check_request in bdrv_co_discard Paolo Bonzini
[not found] ` <20160309144514.GA29027@aepfle.de>
2016-03-09 14:58 ` Kevin Wolf
2016-03-09 16:50 ` Olaf Hering
2016-03-09 17:03 ` Olaf Hering
2016-03-16 10:18 ` Olaf Hering
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