From: Peter Xu <peterx@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Maciej S . Szmigiero" <mail@maciej.szmigiero.name>,
peterx@redhat.com, "Cédric Le Goater" <clg@redhat.com>,
"Avihai Horon" <avihaih@nvidia.com>,
"Alex Williamson" <alex.williamson@redhat.com>,
"Fabiano Rosas" <farosas@suse.de>,
"Prasad Pandit" <ppandit@redhat.com>
Subject: [PATCH v2 5/7] migration/multifd: Remove sync processing on postcopy
Date: Thu, 5 Dec 2024 19:58:32 -0500 [thread overview]
Message-ID: <20241206005834.1050905-6-peterx@redhat.com> (raw)
In-Reply-To: <20241206005834.1050905-1-peterx@redhat.com>
Multifd never worked with postcopy, at least yet so far.
Remove the sync processing there, because it's confusing, and they should
never appear. Now if RAM_SAVE_FLAG_MULTIFD_FLUSH is observed, we fail hard
instead of trying to invoke multifd code.
Signed-off-by: Peter Xu <peterx@redhat.com>
---
migration/ram.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/migration/ram.c b/migration/ram.c
index 90811aabd4..154ff5abd4 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -3772,15 +3772,7 @@ int ram_load_postcopy(QEMUFile *f, int channel)
TARGET_PAGE_SIZE);
}
break;
- case RAM_SAVE_FLAG_MULTIFD_FLUSH:
- multifd_recv_sync_main();
- break;
case RAM_SAVE_FLAG_EOS:
- /* normal exit */
- if (migrate_multifd() &&
- migrate_multifd_flush_after_each_section()) {
- multifd_recv_sync_main();
- }
break;
default:
error_report("Unknown combination of migration flags: 0x%x"
--
2.47.0
next prev parent reply other threads:[~2024-12-06 1:00 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-06 0:58 [PATCH v2 0/7] migration/multifd: Some VFIO / postcopy preparations on flush Peter Xu
2024-12-06 0:58 ` [PATCH v2 1/7] migration/multifd: Further remove the SYNC on complete Peter Xu
2024-12-06 13:17 ` Fabiano Rosas
2024-12-06 14:40 ` Peter Xu
2024-12-06 0:58 ` [PATCH v2 2/7] migration/multifd: Allow to sync with sender threads only Peter Xu
2024-12-06 13:26 ` Fabiano Rosas
2024-12-06 14:50 ` Peter Xu
2024-12-06 15:00 ` Fabiano Rosas
2024-12-06 0:58 ` [PATCH v2 3/7] migration/ram: Move RAM_SAVE_FLAG* into ram.h Peter Xu
2024-12-06 13:43 ` Fabiano Rosas
2024-12-06 15:03 ` Peter Xu
2024-12-06 15:10 ` Fabiano Rosas
2024-12-06 15:46 ` Peter Xu
2024-12-06 16:58 ` Fabiano Rosas
2024-12-06 0:58 ` [PATCH v2 4/7] migration/multifd: Unify RAM_SAVE_FLAG_MULTIFD_FLUSH messages Peter Xu
2024-12-06 14:12 ` Fabiano Rosas
2024-12-06 0:58 ` Peter Xu [this message]
2024-12-06 14:19 ` [PATCH v2 5/7] migration/multifd: Remove sync processing on postcopy Fabiano Rosas
2024-12-06 0:58 ` [PATCH v2 6/7] migration/multifd: Cleanup src flushes on condition check Peter Xu
2024-12-06 14:18 ` Fabiano Rosas
2024-12-06 15:13 ` Peter Xu
2024-12-06 0:58 ` [PATCH v2 7/7] migration/multifd: Document the reason to sync for save_setup() Peter Xu
2024-12-06 14:40 ` Fabiano Rosas
2024-12-06 15:36 ` Peter Xu
2024-12-06 17:01 ` Fabiano Rosas
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20241206005834.1050905-6-peterx@redhat.com \
--to=peterx@redhat.com \
--cc=alex.williamson@redhat.com \
--cc=avihaih@nvidia.com \
--cc=clg@redhat.com \
--cc=farosas@suse.de \
--cc=mail@maciej.szmigiero.name \
--cc=ppandit@redhat.com \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).