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From: Fabiano Rosas <farosas@suse.de>
To: Peter Xu <peterx@redhat.com>, qemu-devel@nongnu.org
Cc: Thomas Huth <thuth@redhat.com>,
	Markus Armbruster <armbru@redhat.com>,
	Laurent Vivier <lvivier@redhat.com>,
	Eric Blake <eblake@redhat.com>,
	Prasad Pandit <ppandit@redhat.com>,
	peterx@redhat.com, Jiri Denemark <jdenemar@redhat.com>,
	Bandan Das <bdas@redhat.com>
Subject: Re: [PATCH v2 04/10] migration: Cleanup incoming migration setup state change
Date: Mon, 17 Jun 2024 16:41:37 -0300	[thread overview]
Message-ID: <87le33bbm6.fsf@suse.de> (raw)
In-Reply-To: <20240617181534.1425179-5-peterx@redhat.com>

Peter Xu <peterx@redhat.com> writes:

> Destination QEMU can setup incoming ports for two purposes: either a fresh
> new incoming migration, in which QEMU will switch to SETUP for channel
> establishment, or a paused postcopy migration, in which QEMU will stay in
> POSTCOPY_PAUSED until kicking off the RECOVER phase.
>
> Now the state machine worked on dest node for the latter, only because
> migrate_set_state() implicitly will become a noop if the current state
> check failed.  It wasn't clear at all.
>
> Clean it up by providing a helper migration_incoming_state_setup() doing
> proper checks over current status.  Postcopy-paused will be explicitly
> checked now, and then we can bail out for unknown states.
>
> Signed-off-by: Peter Xu <peterx@redhat.com>

Reviewed-by: Fabiano Rosas <farosas@suse.de>


  reply	other threads:[~2024-06-17 19:42 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-17 18:15 [PATCH v2 00/10] migration: New postcopy state, and some cleanups Peter Xu
2024-06-17 18:15 ` [PATCH v2 01/10] migration/multifd: Avoid the final FLUSH in complete() Peter Xu
2024-06-17 18:15 ` [PATCH v2 02/10] migration: Rename thread debug names Peter Xu
2024-06-19  1:05   ` Zhijian Li (Fujitsu) via
2024-06-17 18:15 ` [PATCH v2 03/10] migration: Use MigrationStatus instead of int Peter Xu
2024-06-17 19:38   ` Fabiano Rosas
2024-06-17 18:15 ` [PATCH v2 04/10] migration: Cleanup incoming migration setup state change Peter Xu
2024-06-17 19:41   ` Fabiano Rosas [this message]
2024-06-17 18:15 ` [PATCH v2 05/10] migration/postcopy: Add postcopy-recover-setup phase Peter Xu
2024-06-17 19:45   ` Fabiano Rosas
2024-06-17 18:15 ` [PATCH v2 06/10] migration/docs: Update postcopy recover session for SETUP phase Peter Xu
2024-06-17 19:47   ` Fabiano Rosas
2024-06-17 18:15 ` [PATCH v2 07/10] tests/migration-tests: Drop most WIN32 ifdefs for postcopy failure tests Peter Xu
2024-06-17 19:49   ` Fabiano Rosas
2024-06-17 18:15 ` [PATCH v2 08/10] tests/migration-tests: Always enable migration events Peter Xu
2024-06-17 19:51   ` Fabiano Rosas
2024-06-17 21:23     ` Peter Xu
2024-06-19 20:39       ` Peter Xu
2024-06-17 18:15 ` [PATCH v2 09/10] tests/migration-tests: Verify postcopy-recover-setup status Peter Xu
2024-06-17 19:53   ` Fabiano Rosas
2024-06-17 18:15 ` [PATCH v2 10/10] tests/migration-tests: Cover postcopy failure on reconnect Peter Xu
2024-06-17 20:07   ` Fabiano Rosas
2024-06-17 19:34 ` [PATCH v2 00/10] migration: New postcopy state, and some cleanups Peter Xu
2024-06-17 20:12   ` Fabiano Rosas

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