From patchwork Wed Oct 11 09:21:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 13416941 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 93BE5CD6E51 for ; Wed, 11 Oct 2023 09:23:52 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qqVQk-0007Jf-60; Wed, 11 Oct 2023 05:23:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qqVQe-0007Ib-6h for qemu-devel@nongnu.org; Wed, 11 Oct 2023 05:22:57 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qqVQc-0004wL-NA for qemu-devel@nongnu.org; Wed, 11 Oct 2023 05:22:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1697016174; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5QN3m4ddXULXb+g+LA4PT/6Hk4h/19ighlXHfJb6nAw=; b=JZ/f1Ak7XiqyyFHmPQdEZ5v1x/p0SYDeJ0oOjw8GQL3m+JaRbYaPFOlnl1ax5A1Oc1RJOh cD4y88KBjGQmfyhMm9ODZclw/J+FiPWO0SRJkrFgQbtssf7MRw2cUT1KvSEdcVPg09LnUX Kghhu9J1of3iJx1yqPNq7EYvLCV3l6w= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-505-0TPFmhYRPnCpTgKCowQt2A-1; Wed, 11 Oct 2023 05:22:49 -0400 X-MC-Unique: 0TPFmhYRPnCpTgKCowQt2A-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 3DA263814584; Wed, 11 Oct 2023 09:22:49 +0000 (UTC) Received: from secure.mitica (unknown [10.39.195.75]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8492D1C060AE; Wed, 11 Oct 2023 09:22:47 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: Laurent Vivier , Peter Xu , Paolo Bonzini , Markus Armbruster , Juan Quintela , Thomas Huth , Li Zhijian , Leonardo Bras , Eric Blake , Fabiano Rosas Subject: [PULL 21/65] migration/rdma: Make qemu_rdma_buffer_mergeable() return bool Date: Wed, 11 Oct 2023 11:21:19 +0200 Message-ID: <20231011092203.1266-22-quintela@redhat.com> In-Reply-To: <20231011092203.1266-1-quintela@redhat.com> References: <20231011092203.1266-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.7 Received-SPF: pass client-ip=170.10.129.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Markus Armbruster qemu_rdma_buffer_mergeable() is semantically a predicate. It returns int 0 or 1. Return bool instead, and fix the function name's spelling. Signed-off-by: Markus Armbruster Reviewed-by: Fabiano Rosas Reviewed-by: Li Zhijian Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela Message-ID: <20230928132019.2544702-15-armbru@redhat.com> --- migration/rdma.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/migration/rdma.c b/migration/rdma.c index b412dad542..2e62d2cd0a 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -2264,7 +2264,7 @@ static int qemu_rdma_write_flush(RDMAContext *rdma) return 0; } -static inline int qemu_rdma_buffer_mergable(RDMAContext *rdma, +static inline bool qemu_rdma_buffer_mergeable(RDMAContext *rdma, uint64_t offset, uint64_t len) { RDMALocalBlock *block; @@ -2272,11 +2272,11 @@ static inline int qemu_rdma_buffer_mergable(RDMAContext *rdma, uint8_t *chunk_end; if (rdma->current_index < 0) { - return 0; + return false; } if (rdma->current_chunk < 0) { - return 0; + return false; } block = &(rdma->local_ram_blocks.block[rdma->current_index]); @@ -2284,29 +2284,29 @@ static inline int qemu_rdma_buffer_mergable(RDMAContext *rdma, chunk_end = ram_chunk_end(block, rdma->current_chunk); if (rdma->current_length == 0) { - return 0; + return false; } /* * Only merge into chunk sequentially. */ if (offset != (rdma->current_addr + rdma->current_length)) { - return 0; + return false; } if (offset < block->offset) { - return 0; + return false; } if ((offset + len) > (block->offset + block->length)) { - return 0; + return false; } if ((host_addr + len) > chunk_end) { - return 0; + return false; } - return 1; + return true; } /* @@ -2329,7 +2329,7 @@ static int qemu_rdma_write(RDMAContext *rdma, int ret; /* If we cannot merge it, we flush the current buffer first. */ - if (!qemu_rdma_buffer_mergable(rdma, current_addr, len)) { + if (!qemu_rdma_buffer_mergeable(rdma, current_addr, len)) { ret = qemu_rdma_write_flush(rdma); if (ret) { return ret;