From patchwork Wed Nov 23 11:42:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Emanuele Giuseppe Esposito X-Patchwork-Id: 13053542 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 1AECCC4332F for ; Wed, 23 Nov 2022 11:49:13 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oxo9Q-0002m6-Ou; Wed, 23 Nov 2022 06:42:48 -0500 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 1oxo9M-0002k2-Qi for qemu-devel@nongnu.org; Wed, 23 Nov 2022 06:42:45 -0500 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 1oxo9K-00064I-7m for qemu-devel@nongnu.org; Wed, 23 Nov 2022 06:42:44 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669203761; 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=ZMSn5R+D5YjqNGXlRYjLXCHHmrf5FOaUUSp8+TbnuYs=; b=JWo6BjJfc19xm0RMk+8vXt05sIYofo9/7dKi4CjiXYS0Z28Sp7ojLLzhBX5dSoyrGVjV2I 1SyuWJMUWdtEAJxFrjIEG8Xn1qc+a67sFLnQ9B/Qwr32vJiJwezgiS8scJmpPL/HH9dMJD iKY0Ofr/hLGzlNKCm2MEkhD/bYe3NxE= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-421-ikxfK4v1Pz6itjhaJuRthA-1; Wed, 23 Nov 2022 06:42:30 -0500 X-MC-Unique: ikxfK4v1Pz6itjhaJuRthA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6411A858F13; Wed, 23 Nov 2022 11:42:30 +0000 (UTC) Received: from virtlab701.virt.lab.eng.bos.redhat.com (virtlab701.virt.lab.eng.bos.redhat.com [10.19.152.228]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0CFB8C1908C; Wed, 23 Nov 2022 11:42:30 +0000 (UTC) From: Emanuele Giuseppe Esposito To: qemu-block@nongnu.org Cc: Kevin Wolf , Hanna Reitz , John Snow , Vladimir Sementsov-Ogievskiy , Eric Blake , Fam Zheng , Stefan Hajnoczi , "Denis V. Lunev" , Stefan Weil , Jeff Cody , Cleber Rosa , qemu-devel@nongnu.org, Emanuele Giuseppe Esposito Subject: [PATCH v5 01/15] block-io: introduce coroutine_fn duplicates for bdrv_common_block_status_above callers Date: Wed, 23 Nov 2022 06:42:13 -0500 Message-Id: <20221123114227.85757-2-eesposit@redhat.com> In-Reply-To: <20221123114227.85757-1-eesposit@redhat.com> References: <20221123114227.85757-1-eesposit@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 Received-SPF: pass client-ip=170.10.129.124; envelope-from=eesposit@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_H2=-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 bdrv_common_block_status_above() is a g_c_w, and it is being called by many "wrapper" functions like bdrv_is_allocated(), bdrv_is_allocated_above() and bdrv_block_status_above(). Because we want to eventually split the coroutine from non-coroutine case in g_c_w, create duplicate wrappers that take care of directly calling the same coroutine functions called in the g_c_w. Signed-off-by: Emanuele Giuseppe Esposito Reviewed-by: Kevin Wolf --- block/io.c | 64 ++++++++++++++++++++++++++++++++++++++-- include/block/block-io.h | 15 ++++++++++ 2 files changed, 76 insertions(+), 3 deletions(-) diff --git a/block/io.c b/block/io.c index 38e57d1f67..1bc05c8282 100644 --- a/block/io.c +++ b/block/io.c @@ -2533,6 +2533,19 @@ bdrv_co_common_block_status_above(BlockDriverState *bs, return ret; } +int coroutine_fn bdrv_co_block_status_above(BlockDriverState *bs, + BlockDriverState *base, + int64_t offset, int64_t bytes, + int64_t *pnum, int64_t *map, + BlockDriverState **file) +{ + IO_CODE(); + /* If QEMU_IN_COROUTINE() fails, use bdrv_block_status_above() */ + QEMU_IN_COROUTINE(); + return bdrv_co_common_block_status_above(bs, base, false, true, offset, + bytes, pnum, map, file, NULL); +} + int bdrv_block_status_above(BlockDriverState *bs, BlockDriverState *base, int64_t offset, int64_t bytes, int64_t *pnum, int64_t *map, BlockDriverState **file) @@ -2578,6 +2591,24 @@ int coroutine_fn bdrv_co_is_zero_fast(BlockDriverState *bs, int64_t offset, return (pnum == bytes) && (ret & BDRV_BLOCK_ZERO); } +int coroutine_fn bdrv_co_is_allocated(BlockDriverState *bs, int64_t offset, + int64_t bytes, int64_t *pnum) +{ + int ret; + int64_t dummy; + IO_CODE(); + /* If QEMU_IN_COROUTINE() fails, use bdrv_is_allocated() */ + QEMU_IN_COROUTINE(); + + ret = bdrv_co_common_block_status_above(bs, bs, true, false, offset, + bytes, pnum ? pnum : &dummy, NULL, + NULL, NULL); + if (ret < 0) { + return ret; + } + return !!(ret & BDRV_BLOCK_ALLOCATED); +} + int bdrv_is_allocated(BlockDriverState *bs, int64_t offset, int64_t bytes, int64_t *pnum) { @@ -2594,6 +2625,31 @@ int bdrv_is_allocated(BlockDriverState *bs, int64_t offset, int64_t bytes, return !!(ret & BDRV_BLOCK_ALLOCATED); } +/* See bdrv_is_allocated_above for documentation */ +int coroutine_fn bdrv_co_is_allocated_above(BlockDriverState *top, + BlockDriverState *base, + bool include_base, int64_t offset, + int64_t bytes, int64_t *pnum) +{ + int depth; + int ret; + IO_CODE(); + /* If QEMU_IN_COROUTINE() fails, use bdrv_is_allocated_above() */ + QEMU_IN_COROUTINE(); + + ret = bdrv_co_common_block_status_above(top, base, include_base, false, + offset, bytes, pnum, NULL, NULL, + &depth); + if (ret < 0) { + return ret; + } + + if (ret & BDRV_BLOCK_ALLOCATED) { + return depth; + } + return 0; +} + /* * Given an image chain: ... -> [BASE] -> [INTER1] -> [INTER2] -> [TOP] * @@ -2617,10 +2673,12 @@ int bdrv_is_allocated_above(BlockDriverState *top, int64_t bytes, int64_t *pnum) { int depth; - int ret = bdrv_common_block_status_above(top, base, include_base, false, - offset, bytes, pnum, NULL, NULL, - &depth); + int ret; IO_CODE(); + + ret = bdrv_common_block_status_above(top, base, include_base, false, + offset, bytes, pnum, NULL, NULL, + &depth); if (ret < 0) { return ret; } diff --git a/include/block/block-io.h b/include/block/block-io.h index 92aaa7c1e9..72919254cd 100644 --- a/include/block/block-io.h +++ b/include/block/block-io.h @@ -94,14 +94,29 @@ bool bdrv_can_write_zeroes_with_unmap(BlockDriverState *bs); int bdrv_block_status(BlockDriverState *bs, int64_t offset, int64_t bytes, int64_t *pnum, int64_t *map, BlockDriverState **file); + +int coroutine_fn bdrv_co_block_status_above(BlockDriverState *bs, + BlockDriverState *base, + int64_t offset, int64_t bytes, + int64_t *pnum, int64_t *map, + BlockDriverState **file); int bdrv_block_status_above(BlockDriverState *bs, BlockDriverState *base, int64_t offset, int64_t bytes, int64_t *pnum, int64_t *map, BlockDriverState **file); + +int coroutine_fn bdrv_co_is_allocated(BlockDriverState *bs, int64_t offset, + int64_t bytes, int64_t *pnum); int bdrv_is_allocated(BlockDriverState *bs, int64_t offset, int64_t bytes, int64_t *pnum); + +int coroutine_fn bdrv_co_is_allocated_above(BlockDriverState *top, + BlockDriverState *base, + bool include_base, int64_t offset, + int64_t bytes, int64_t *pnum); int bdrv_is_allocated_above(BlockDriverState *top, BlockDriverState *base, bool include_base, int64_t offset, int64_t bytes, int64_t *pnum); + int coroutine_fn bdrv_co_is_zero_fast(BlockDriverState *bs, int64_t offset, int64_t bytes);