From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55470) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bxfiC-0005Il-US for qemu-devel@nongnu.org; Fri, 21 Oct 2016 15:42:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bxfi9-0007YD-EV for qemu-devel@nongnu.org; Fri, 21 Oct 2016 15:42:40 -0400 Received: from mx1.redhat.com ([209.132.183.28]:40100) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1bxfi9-0007Xi-9D for qemu-devel@nongnu.org; Fri, 21 Oct 2016 15:42:37 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 84D6C2A0C93 for ; Fri, 21 Oct 2016 19:42:36 +0000 (UTC) From: Juan Quintela Date: Fri, 21 Oct 2016 21:42:11 +0200 Message-Id: <1477078935-7182-10-git-send-email-quintela@redhat.com> In-Reply-To: <1477078935-7182-1-git-send-email-quintela@redhat.com> References: <1477078935-7182-1-git-send-email-quintela@redhat.com> Subject: [Qemu-devel] [PATCH 09/13] migration: Send the fd number which we are going to use for this page List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: amit.shah@redhat.com, dgilbert@redhat.com We are still sending the page through the main channel, that would change later in the series Signed-off-by: Juan Quintela --- migration/ram.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/migration/ram.c b/migration/ram.c index 0098d33..8de9b0d 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -539,7 +539,7 @@ static int multifd_send_page(uint8_t *address) qemu_cond_signal(&multifd_send[i].cond); qemu_mutex_unlock(&multifd_send[i].mutex); - return 0; + return i; } struct MultiFDRecvParams { @@ -1056,6 +1056,7 @@ static int ram_multifd_page(QEMUFile *f, PageSearchStatus *pss, bool last_stage, uint64_t *bytes_transferred) { int pages; + uint16_t fd_num; uint8_t *p; RAMBlock *block = pss->block; ram_addr_t offset = pss->offset; @@ -1069,8 +1070,10 @@ static int ram_multifd_page(QEMUFile *f, PageSearchStatus *pss, if (pages == -1) { *bytes_transferred += save_page_header(f, block, offset | RAM_SAVE_FLAG_MULTIFD_PAGE); + fd_num = multifd_send_page(p); + qemu_put_be16(f, fd_num); + *bytes_transferred += 2; /* size of fd_num */ qemu_put_buffer(f, p, TARGET_PAGE_SIZE); - multifd_send_page(p); *bytes_transferred += TARGET_PAGE_SIZE; pages = 1; acct_info.norm_pages++; @@ -2758,6 +2761,7 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id) while (!postcopy_running && !ret && !(flags & RAM_SAVE_FLAG_EOS)) { ram_addr_t addr, total_ram_bytes; void *host = NULL; + uint16_t fd_num; uint8_t ch; addr = qemu_get_be64(f); @@ -2843,6 +2847,11 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id) break; case RAM_SAVE_FLAG_MULTIFD_PAGE: + fd_num = qemu_get_be16(f); + if (fd_num != 0) { + /* this is yet an unused variable, changed later */ + fd_num = 0; + } qemu_get_buffer(f, host, TARGET_PAGE_SIZE); break; -- 2.7.4