From: Peter Xu <peterx@redhat.com>
To: Fabiano Rosas <farosas@suse.de>
Cc: qemu-devel@nongnu.org, berrange@redhat.com, armbru@redhat.com,
Claudio Fontana <cfontana@suse.de>
Subject: Re: [PATCH v5 22/23] migration/multifd: Add mapped-ram support to fd: URI
Date: Thu, 29 Feb 2024 11:31:54 +0800 [thread overview]
Message-ID: <Zd_6qussKb21Yo0g@x1n> (raw)
In-Reply-To: <20240228152127.18769-23-farosas@suse.de>
On Wed, Feb 28, 2024 at 12:21:26PM -0300, Fabiano Rosas wrote:
> If we receive a file descriptor that points to a regular file, there's
> nothing stopping us from doing multifd migration with mapped-ram to
> that file.
>
> Enable the fd: URI to work with multifd + mapped-ram.
>
> Note that the fds passed into multifd are duplicated because we want
> to avoid cross-thread effects when doing cleanup (i.e. close(fd)). The
> original fd doesn't need to be duplicated because monitor_get_fd()
> transfers ownership to the caller.
>
> Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
--
Peter Xu
next prev parent reply other threads:[~2024-02-29 3:32 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-28 15:21 [PATCH v5 00/23] migration: File based migration with multifd and mapped-ram Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 01/23] migration/multifd: Cleanup multifd_recv_sync_main Fabiano Rosas
2024-02-29 1:26 ` Peter Xu
2024-02-28 15:21 ` [PATCH v5 02/23] io: add and implement QIO_CHANNEL_FEATURE_SEEKABLE for channel file Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 03/23] io: Add generic pwritev/preadv interface Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 04/23] io: implement io_pwritev/preadv for QIOChannelFile Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 05/23] io: fsync before closing a file channel Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 06/23] migration/qemu-file: add utility methods for working with seekable channels Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 07/23] migration/ram: Introduce 'mapped-ram' migration capability Fabiano Rosas
2024-02-29 2:10 ` Peter Xu
2024-02-28 15:21 ` [PATCH v5 08/23] migration: Add mapped-ram URI compatibility check Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 09/23] migration/ram: Add outgoing 'mapped-ram' migration Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 10/23] migration/ram: Add incoming " Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 11/23] tests/qtest/migration: Add tests for mapped-ram file-based migration Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 12/23] migration/multifd: Rename MultiFDSend|RecvParams::data to compress_data Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 13/23] migration/multifd: Decouple recv method from pages Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 14/23] migration/multifd: Allow multifd without packets Fabiano Rosas
2024-02-29 2:20 ` Peter Xu
2024-02-28 15:21 ` [PATCH v5 15/23] migration/multifd: Allow receiving pages " Fabiano Rosas
2024-02-29 2:28 ` Peter Xu
2024-02-28 15:21 ` [PATCH v5 16/23] migration/multifd: Add a wrapper for channels_created Fabiano Rosas
2024-02-29 2:29 ` Peter Xu
2024-02-28 15:21 ` [PATCH v5 17/23] migration/multifd: Add outgoing QIOChannelFile support Fabiano Rosas
2024-02-29 2:44 ` Peter Xu
2024-02-29 3:33 ` Peter Xu
2024-02-29 14:27 ` Fabiano Rosas
2024-02-29 14:34 ` Daniel P. Berrangé
2024-03-01 0:08 ` Peter Xu
2024-02-28 15:21 ` [PATCH v5 18/23] migration/multifd: Add incoming " Fabiano Rosas
2024-02-29 2:53 ` Peter Xu
2024-02-28 15:21 ` [PATCH v5 19/23] migration/multifd: Prepare multifd sync for mapped-ram migration Fabiano Rosas
2024-02-29 3:16 ` Peter Xu
2024-02-29 13:19 ` Fabiano Rosas
2024-03-01 0:15 ` Peter Xu
2024-02-28 15:21 ` [PATCH v5 20/23] migration/multifd: Support outgoing mapped-ram stream format Fabiano Rosas
2024-02-28 15:21 ` [PATCH v5 21/23] migration/multifd: Support incoming " Fabiano Rosas
2024-02-29 3:23 ` Peter Xu
2024-02-28 15:21 ` [PATCH v5 22/23] migration/multifd: Add mapped-ram support to fd: URI Fabiano Rosas
2024-02-29 3:31 ` Peter Xu [this message]
2024-02-28 15:21 ` [PATCH v5 23/23] tests/qtest/migration: Add a multifd + mapped-ram migration test Fabiano Rosas
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