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migration/multifd: Allow clearing of the file_bmap from multifd

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We currently only need to clear the mapped-ram file bitmap from the
migration thread during save_zero_page.

We're about to add support for zero page detection on the multifd
thread, so allow ramblock_set_file_bmap_atomic() to also clear the
bits.

Signed-off-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240311180015.3359271-3-hao.xiang@linux.dev
Signed-off-by: Peter Xu <peterx@redhat.com>
This commit is contained in:
Fabiano Rosas 2024-03-11 18:00:10 +00:00 • committed by Peter Xu
parent 44fe138edc
commit c3cdf3fb18
3 changed files with 9 additions and 4 deletions
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2
migration/multifd.c
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@ -115,7 +115,7 @@ static void multifd_set_file_bitmap(MultiFDSendParams *p)
assert(pages->block);
for (int i = 0; i < p->pages->num; i++) {
ramblock_set_file_bmap_atomic(pages->block, pages->offset[i]);
ramblock_set_file_bmap_atomic(pages->block, pages->offset[i], true);
}
}