From patchwork Wed Sep 30 10:12:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Stefan Hajnoczi X-Patchwork-Id: 304045 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 62F7DC4727E for ; Wed, 30 Sep 2020 10:24:16 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id BBB842074A for ; Wed, 30 Sep 2020 10:24:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="f32RXkvQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BBB842074A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:42336 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kNZHS-0001H1-Km for qemu-devel@archiver.kernel.org; Wed, 30 Sep 2020 06:24:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43824) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kNZ7U-0003Tx-98 for qemu-devel@nongnu.org; Wed, 30 Sep 2020 06:13:56 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:32847) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kNZ7R-00063U-Ur for qemu-devel@nongnu.org; Wed, 30 Sep 2020 06:13:55 -0400 Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1601460833; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xcWdqUtNzLbZiUblwpb+EnHbc8XTZYiDIUnt4Bj23xw=; b=f32RXkvQJUfuzcyLrEPHRa+UETofqCUs3DAtmjsgTQbUdiHKY/md/nXmTUaqeSaIOmfSly dj0N26p5VtxPbG5i3DK4AMV3gKQr/twneRC4I+/rNvKgG+Q84onUB7Iz8sUnLi2qrDXmhJ yrAWubI5lllZ2SyOP5QAjnL0LLciTlE= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-433-ApRgV9w_P_-4iVyV93ztlg-1; Wed, 30 Sep 2020 06:13:51 -0400 X-MC-Unique: ApRgV9w_P_-4iVyV93ztlg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id EB41E1007466; Wed, 30 Sep 2020 10:13:49 +0000 (UTC) Received: from localhost (ovpn-114-33.ams2.redhat.com [10.36.114.33]) by smtp.corp.redhat.com (Postfix) with ESMTP id 673B973678; Wed, 30 Sep 2020 10:13:49 +0000 (UTC) From: Stefan Hajnoczi To: Peter Maydell , qemu-devel@nongnu.org Subject: [PULL 09/17] block: declare some coroutine functions in block/coroutines.h Date: Wed, 30 Sep 2020 11:12:57 +0100 Message-Id: <20200930101305.305302-10-stefanha@redhat.com> In-Reply-To: <20200930101305.305302-1-stefanha@redhat.com> References: <20200930101305.305302-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/30 00:26:33 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.687, 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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Fam Zheng , Vladimir Sementsov-Ogievskiy , Eduardo Habkost , qemu-block@nongnu.org, =?utf-8?q?Philippe_Math?= =?utf-8?q?ieu-Daud=C3=A9?= , Max Reitz , Stefan Hajnoczi , Cleber Rosa Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Vladimir Sementsov-Ogievskiy We are going to keep coroutine-wrappers code (structure-packing parameters, BDRV_POLL wrapper functions) in separate auto-generated files. So, we'll need a header with declaration of original _co_ functions, for those which are static now. As well, we'll need declarations for wrapper functions. Do these declarations now, as a preparation step. Signed-off-by: Vladimir Sementsov-Ogievskiy Signed-off-by: Stefan Hajnoczi Reviewed-by: Eric Blake Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Stefan Hajnoczi Message-Id: <20200924185414.28642-4-vsementsov@virtuozzo.com> --- block/coroutines.h | 67 ++++++++++++++++++++++++++++++++++++++++++++++ block.c | 8 +++--- block/io.c | 34 +++++++++++------------ 3 files changed, 88 insertions(+), 21 deletions(-) create mode 100644 block/coroutines.h diff --git a/block/coroutines.h b/block/coroutines.h new file mode 100644 index 0000000000..9ce1730a09 --- /dev/null +++ b/block/coroutines.h @@ -0,0 +1,67 @@ +/* + * Block layer I/O functions + * + * Copyright (c) 2003 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef BLOCK_COROUTINES_INT_H +#define BLOCK_COROUTINES_INT_H + +#include "block/block_int.h" + +int coroutine_fn bdrv_co_check(BlockDriverState *bs, + BdrvCheckResult *res, BdrvCheckMode fix); +int coroutine_fn bdrv_co_invalidate_cache(BlockDriverState *bs, Error **errp); + +int coroutine_fn +bdrv_co_prwv(BdrvChild *child, int64_t offset, QEMUIOVector *qiov, + bool is_write, BdrvRequestFlags flags); +int +bdrv_prwv(BdrvChild *child, int64_t offset, QEMUIOVector *qiov, + bool is_write, BdrvRequestFlags flags); + +int coroutine_fn +bdrv_co_common_block_status_above(BlockDriverState *bs, + BlockDriverState *base, + bool want_zero, + int64_t offset, + int64_t bytes, + int64_t *pnum, + int64_t *map, + BlockDriverState **file); +int +bdrv_common_block_status_above(BlockDriverState *bs, + BlockDriverState *base, + bool want_zero, + int64_t offset, + int64_t bytes, + int64_t *pnum, + int64_t *map, + BlockDriverState **file); + +int coroutine_fn +bdrv_co_rw_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos, + bool is_read); +int +bdrv_rw_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos, + bool is_read); + +#endif /* BLOCK_COROUTINES_INT_H */ diff --git a/block.c b/block.c index 4829c8ac47..517a425340 100644 --- a/block.c +++ b/block.c @@ -48,6 +48,7 @@ #include "qemu/timer.h" #include "qemu/cutils.h" #include "qemu/id.h" +#include "block/coroutines.h" #ifdef CONFIG_BSD #include @@ -4676,8 +4677,8 @@ static void bdrv_delete(BlockDriverState *bs) * free of errors) or -errno when an internal error occurred. The results of the * check are stored in res. */ -static int coroutine_fn bdrv_co_check(BlockDriverState *bs, - BdrvCheckResult *res, BdrvCheckMode fix) +int coroutine_fn bdrv_co_check(BlockDriverState *bs, + BdrvCheckResult *res, BdrvCheckMode fix) { if (bs->drv == NULL) { return -ENOMEDIUM; @@ -5781,8 +5782,7 @@ void bdrv_init_with_whitelist(void) bdrv_init(); } -static int coroutine_fn bdrv_co_invalidate_cache(BlockDriverState *bs, - Error **errp) +int coroutine_fn bdrv_co_invalidate_cache(BlockDriverState *bs, Error **errp) { BdrvChild *child, *parent; uint64_t perm, shared_perm; diff --git a/block/io.c b/block/io.c index b4f6ab0ab1..55b3b7692c 100644 --- a/block/io.c +++ b/block/io.c @@ -29,6 +29,7 @@ #include "block/blockjob.h" #include "block/blockjob_int.h" #include "block/block_int.h" +#include "block/coroutines.h" #include "qemu/cutils.h" #include "qapi/error.h" #include "qemu/error-report.h" @@ -933,9 +934,9 @@ typedef struct RwCo { BdrvRequestFlags flags; } RwCo; -static int coroutine_fn bdrv_co_prwv(BdrvChild *child, int64_t offset, - QEMUIOVector *qiov, bool is_write, - BdrvRequestFlags flags) +int coroutine_fn bdrv_co_prwv(BdrvChild *child, int64_t offset, + QEMUIOVector *qiov, bool is_write, + BdrvRequestFlags flags) { if (is_write) { return bdrv_co_pwritev(child, offset, qiov->size, qiov, flags); @@ -955,9 +956,9 @@ static int coroutine_fn bdrv_rw_co_entry(void *opaque) /* * Process a vectored synchronous request using coroutines */ -static int bdrv_prwv(BdrvChild *child, int64_t offset, - QEMUIOVector *qiov, bool is_write, - BdrvRequestFlags flags) +int bdrv_prwv(BdrvChild *child, int64_t offset, + QEMUIOVector *qiov, bool is_write, + BdrvRequestFlags flags) { RwCo rwco = { .child = child, @@ -2452,7 +2453,7 @@ early_out: return ret; } -static int coroutine_fn +int coroutine_fn bdrv_co_common_block_status_above(BlockDriverState *bs, BlockDriverState *base, bool want_zero, @@ -2509,12 +2510,12 @@ static int coroutine_fn bdrv_block_status_above_co_entry(void *opaque) * * See bdrv_co_block_status_above() for details. */ -static int bdrv_common_block_status_above(BlockDriverState *bs, - BlockDriverState *base, - bool want_zero, int64_t offset, - int64_t bytes, int64_t *pnum, - int64_t *map, - BlockDriverState **file) +int bdrv_common_block_status_above(BlockDriverState *bs, + BlockDriverState *base, + bool want_zero, int64_t offset, + int64_t bytes, int64_t *pnum, + int64_t *map, + BlockDriverState **file) { BdrvCoBlockStatusData data = { .bs = bs, @@ -2630,7 +2631,7 @@ typedef struct BdrvVmstateCo { bool is_read; } BdrvVmstateCo; -static int coroutine_fn +int coroutine_fn bdrv_co_rw_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos, bool is_read) { @@ -2663,9 +2664,8 @@ static int coroutine_fn bdrv_co_rw_vmstate_entry(void *opaque) return bdrv_co_rw_vmstate(co->bs, co->qiov, co->pos, co->is_read); } -static inline int -bdrv_rw_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos, - bool is_read) +int bdrv_rw_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos, + bool is_read) { BdrvVmstateCo data = { .bs = bs,