Commit 814bb08f authored by Peter Xu's avatar Peter Xu Committed by Dr. David Alan Gilbert
Browse files

migration: update recv bitmap only on dest vm 



We shouldn't update the received bitmap if we're the source VM.  This
fixes a breakage when release-ram is enabled on postcopy.

Signed-off-by: default avatarPeter Xu <peterx@redhat.com>
Message-Id: <20180723123305.24792-2-peterx@redhat.com>
Reviewed-by: default avatarJuan Quintela <quintela@redhat.com>
Signed-off-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
parent 67fa1f57

migration/ram.c

+9 −2
Original line number Diff line number Diff line
@@ -2827,8 +2827,15 @@ int ram_discard_range(const char *rbname, uint64_t start, size_t length) 
        goto err;

    }



    /*

     * On source VM, we don't need to update the received bitmap since

     * we don't even have one.

     */

    if (rb->receivedmap) {

        bitmap_clear(rb->receivedmap, start >> qemu_target_page_bits(),

                     length >> qemu_target_page_bits());

    }



    ret = ram_block_discard_range(rb, start, length);



err: