From: Fabiano Rosas <farosas@suse.de>
To: Juan Quintela <quintela@redhat.com>, qemu-devel@nongnu.org
Cc: Li Zhijian <lizhijian@fujitsu.com>,
Juan Quintela <quintela@redhat.com>,
Leonardo Bras <leobras@redhat.com>, Peter Xu <peterx@redhat.com>
Subject: Re: [PATCH 1/2] migration: Receiving a zero page non zero is an error
Date: Thu, 19 Oct 2023 18:22:38 -0300 [thread overview]
Message-ID: <8734y6i9y9.fsf@suse.de> (raw)
In-Reply-To: <20231019085259.13307-2-quintela@redhat.com>
Juan Quintela <quintela@redhat.com> writes:
> We don't allow non zero compressed pages since:
>
> commit 3edcd7e6ebae3ef0ac178eed5f4225803159562d
> Author: Peter Lieven <pl@kamp.de>
> Date: Tue Mar 26 10:58:35 2013 +0100
>
> migration: search for zero instead of dup pages
>
> RDMA case is a bit more complicated, but they don't handle it since:
>
> commit a1febc4950f2c6232c002f401d7cd409f6fa6a88
> Author: Richard Henderson <rth@twiddle.net>
> Date: Mon Aug 29 11:46:14 2016 -0700
>
> cutils: Export only buffer_is_zero
>
> Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
next prev parent reply other threads:[~2023-10-19 21:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-19 8:52 [PATCH 0/2] migration: Simplify handling of zero pages Juan Quintela
2023-10-19 8:52 ` [PATCH 1/2] migration: Receiving a zero page non zero is an error Juan Quintela
2023-10-19 21:22 ` Fabiano Rosas [this message]
2023-10-19 8:52 ` [PATCH 2/2] migration: Rename ram_handle_compressed() to ram_handle_zero() Juan Quintela
2023-10-19 21:23 ` Fabiano Rosas
2023-10-23 15:03 ` [PATCH 0/2] migration: Simplify handling of zero pages Peter Xu
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