From nobody Wed Dec 17 05:36:58 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1556640767; cv=none; d=zoho.com; s=zohoarc; b=gf+0H1R8nV3NCxmEE5tOGjGSZvE+ds5NSa+Vb4eWjOGUY4DLVZnEsrRVOLzK3q5zmIvLXnwcxDRqmzo48RhWPJh27QEmOznU/ippKy28EtXrfdW5UrJCD6b9bLtirZ+P3QYa/RyihXI7s8Iy1k50n9jHyF7JCpCS0AlBaqbZ3H0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1556640767; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=jWsuAK95w5LTqMdyT2lJvs/SWYxOzbGzijkmkTOxNRs=; b=C1/j+yh04A718uKmBWmgs0KNE8s1/Yt1rEjnXNPzM7oKkHQk+rX8Fw0X9KeqZDI93oZX8xy6yc2FWRvxApSUw1w2AD8RYOGAa/Sk+tMFvolkwRwdG4kvPqJi16/JmwwfJV9gvW/REJ81ECMpf3ncB3cI8M4V6ZXX88PQUWiVHFs= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1556640767619506.04113483690696; Tue, 30 Apr 2019 09:12:47 -0700 (PDT) Received: from localhost ([127.0.0.1]:49260 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hLVN6-00074Y-HV for importer@patchew.org; Tue, 30 Apr 2019 12:12:44 -0400 Received: from eggs.gnu.org ([209.51.188.92]:48958) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hLUuw-00088z-3e for qemu-devel@nongnu.org; Tue, 30 Apr 2019 11:43:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hLUuu-0002Ay-H8 for qemu-devel@nongnu.org; Tue, 30 Apr 2019 11:43:38 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49848) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hLUup-00025q-Pe; Tue, 30 Apr 2019 11:43:32 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D547A2D800; Tue, 30 Apr 2019 15:43:30 +0000 (UTC) Received: from linux.fritz.box.com (unknown [10.36.118.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id E24F44D5; Tue, 30 Apr 2019 15:43:29 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Date: Tue, 30 Apr 2019 17:42:36 +0200 Message-Id: <20190430154244.30083-20-kwolf@redhat.com> In-Reply-To: <20190430154244.30083-1-kwolf@redhat.com> References: <20190430154244.30083-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Tue, 30 Apr 2019 15:43:30 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 19/27] block/qed: use buffer-based io X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Vladimir Sementsov-Ogievskiy Move to _co_ versions of io functions qed_read_table() and qed_write_table(), as we use qemu_co_mutex_unlock() anyway. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Stefan Hajnoczi Reviewed-by: Stefano Garzarella Signed-off-by: Kevin Wolf --- block/qed-table.c | 12 +++++------- block/qed.c | 6 ++---- 2 files changed, 7 insertions(+), 11 deletions(-) diff --git a/block/qed-table.c b/block/qed-table.c index c497bd4aec..cf30edd977 100644 --- a/block/qed-table.c +++ b/block/qed-table.c @@ -21,22 +21,22 @@ /* Called with table_lock held. */ static int qed_read_table(BDRVQEDState *s, uint64_t offset, QEDTable *tabl= e) { - QEMUIOVector qiov =3D QEMU_IOVEC_INIT_BUF( - qiov, table->offsets, s->header.cluster_size * s->header.table_siz= e); + unsigned int bytes =3D s->header.cluster_size * s->header.table_size; + int noffsets; int i, ret; =20 trace_qed_read_table(s, offset, table); =20 qemu_co_mutex_unlock(&s->table_lock); - ret =3D bdrv_preadv(s->bs->file, offset, &qiov); + ret =3D bdrv_co_pread(s->bs->file, offset, bytes, table->offsets, 0); qemu_co_mutex_lock(&s->table_lock); if (ret < 0) { goto out; } =20 /* Byteswap offsets */ - noffsets =3D qiov.size / sizeof(uint64_t); + noffsets =3D bytes / sizeof(uint64_t); for (i =3D 0; i < noffsets; i++) { table->offsets[i] =3D le64_to_cpu(table->offsets[i]); } @@ -66,7 +66,6 @@ static int qed_write_table(BDRVQEDState *s, uint64_t offs= et, QEDTable *table, unsigned int sector_mask =3D BDRV_SECTOR_SIZE / sizeof(uint64_t) - 1; unsigned int start, end, i; QEDTable *new_table; - QEMUIOVector qiov; size_t len_bytes; int ret; =20 @@ -79,7 +78,6 @@ static int qed_write_table(BDRVQEDState *s, uint64_t offs= et, QEDTable *table, len_bytes =3D (end - start) * sizeof(uint64_t); =20 new_table =3D qemu_blockalign(s->bs, len_bytes); - qemu_iovec_init_buf(&qiov, new_table->offsets, len_bytes); =20 /* Byteswap table */ for (i =3D start; i < end; i++) { @@ -91,7 +89,7 @@ static int qed_write_table(BDRVQEDState *s, uint64_t offs= et, QEDTable *table, offset +=3D start * sizeof(uint64_t); =20 qemu_co_mutex_unlock(&s->table_lock); - ret =3D bdrv_pwritev(s->bs->file, offset, &qiov); + ret =3D bdrv_co_pwrite(s->bs->file, offset, len_bytes, new_table->offs= ets, 0); qemu_co_mutex_lock(&s->table_lock); trace_qed_write_table_cb(s, table, flush, ret); if (ret < 0) { diff --git a/block/qed.c b/block/qed.c index 89af05d524..912edaf56a 100644 --- a/block/qed.c +++ b/block/qed.c @@ -113,15 +113,13 @@ static int coroutine_fn qed_write_header(BDRVQEDState= *s) int nsectors =3D DIV_ROUND_UP(sizeof(QEDHeader), BDRV_SECTOR_SIZE); size_t len =3D nsectors * BDRV_SECTOR_SIZE; uint8_t *buf; - QEMUIOVector qiov; int ret; =20 assert(s->allocating_acb || s->allocating_write_reqs_plugged); =20 buf =3D qemu_blockalign(s->bs, len); - qemu_iovec_init_buf(&qiov, buf, len); =20 - ret =3D bdrv_co_preadv(s->bs->file, 0, qiov.size, &qiov, 0); + ret =3D bdrv_co_pread(s->bs->file, 0, len, buf, 0); if (ret < 0) { goto out; } @@ -129,7 +127,7 @@ static int coroutine_fn qed_write_header(BDRVQEDState *= s) /* Update header */ qed_header_cpu_to_le(&s->header, (QEDHeader *) buf); =20 - ret =3D bdrv_co_pwritev(s->bs->file, 0, qiov.size, &qiov, 0); + ret =3D bdrv_co_pwrite(s->bs->file, 0, len, buf, 0); if (ret < 0) { goto out; } --=20 2.20.1