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| author | Peter Xu <peterx@redhat.com> | 2024-02-02 18:28:35 +0800 |
|---|---|---|
| committer | Peter Xu <peterx@redhat.com> | 2024-02-05 14:42:10 +0800 |
| commit | 8888a552bf7af200e36ff123772547dfb4f133c4 (patch) | |
| tree | c6b2b9d4dc397dba883b8c1b29c89b22c214f3a0 /migration | |
| parent | 06152b89db64bc5ccec1e54576706ba891654df9 (diff) | |
| download | qemu-8888a552bf7af200e36ff123772547dfb4f133c4.zip qemu-8888a552bf7af200e36ff123772547dfb4f133c4.tar.gz qemu-8888a552bf7af200e36ff123772547dfb4f133c4.tar.bz2 | |
migration/multifd: Drop stale comment for multifd zero copy
We've already done that with multifd_flush_after_each_section, for multifd
in general. Drop the stale "TODO-like" comment.
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240202102857.110210-2-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/multifd.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/migration/multifd.c b/migration/multifd.c index 25cbc6d..eee2586 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -598,17 +598,6 @@ int multifd_send_sync_main(void) } } - /* - * When using zero-copy, it's necessary to flush the pages before any of - * the pages can be sent again, so we'll make sure the new version of the - * pages will always arrive _later_ than the old pages. - * - * Currently we achieve this by flushing the zero-page requested writes - * per ram iteration, but in the future we could potentially optimize it - * to be less frequent, e.g. only after we finished one whole scanning of - * all the dirty bitmaps. - */ - flush_zero_copy = migrate_zero_copy_send(); for (i = 0; i < migrate_multifd_channels(); i++) { |