From patchwork Mon Aug 8 17:06:49 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Aneesh Kumar K.V" X-Patchwork-Id: 109067 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [140.186.70.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id B5CD6B6F72 for ; Tue, 9 Aug 2011 04:44:04 +1000 (EST) Received: from localhost ([::1]:59750 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QqUnx-0000Ow-1D for incoming@patchwork.ozlabs.org; Mon, 08 Aug 2011 14:44:01 -0400 Received: from eggs.gnu.org ([140.186.70.92]:60100) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QqTJj-0006kZ-O5 for qemu-devel@nongnu.org; Mon, 08 Aug 2011 13:08:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QqTJi-0002RU-Qu for qemu-devel@nongnu.org; Mon, 08 Aug 2011 13:08:43 -0400 Received: from e23smtp04.au.ibm.com ([202.81.31.146]:37086) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QqTJi-00029G-4H for qemu-devel@nongnu.org; Mon, 08 Aug 2011 13:08:42 -0400 Received: from d23relay03.au.ibm.com (d23relay03.au.ibm.com [202.81.31.245]) by e23smtp04.au.ibm.com (8.14.4/8.13.1) with ESMTP id p78H1Gj3007876 for ; Tue, 9 Aug 2011 03:01:16 +1000 Received: from d23av02.au.ibm.com (d23av02.au.ibm.com [9.190.235.138]) by d23relay03.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p78H7evt1188048 for ; Tue, 9 Aug 2011 03:07:40 +1000 Received: from d23av02.au.ibm.com (loopback [127.0.0.1]) by d23av02.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p78H7egm027194 for ; Tue, 9 Aug 2011 03:07:40 +1000 Received: from skywalker.ibm.com ([9.80.65.225]) by d23av02.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id p78H6wk6025812; Tue, 9 Aug 2011 03:07:39 +1000 From: "Aneesh Kumar K.V" To: qemu-devel@nongnu.org Date: Mon, 8 Aug 2011 22:36:49 +0530 Message-Id: <1312823215-28675-23-git-send-email-aneesh.kumar@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1312823215-28675-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1312823215-28675-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) X-Received-From: 202.81.31.146 Cc: aliguori@us.ibm.com, "Aneesh Kumar K.V" Subject: [Qemu-devel] [PATCH -V4 22/28] hw/9pfs: Add yield support for pwritev coroutine X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Signed-off-by: Aneesh Kumar K.V --- hw/9pfs/cofile.c | 17 +++++++++++++++++ hw/9pfs/virtio-9p-coth.h | 2 ++ 2 files changed, 19 insertions(+), 0 deletions(-) diff --git a/hw/9pfs/cofile.c b/hw/9pfs/cofile.c index 52eec2a..e0d032d 100644 --- a/hw/9pfs/cofile.c +++ b/hw/9pfs/cofile.c @@ -127,3 +127,20 @@ int v9fs_co_link(V9fsState *s, V9fsString *oldpath, V9fsString *newpath) }); return err; } + +int v9fs_co_pwritev(V9fsState *s, V9fsFidState *fidp, + struct iovec *iov, int iovcnt, int64_t offset) +{ + int fd; + int err; + + fd = fidp->fs.fd; + v9fs_co_run_in_worker( + { + err = s->ops->pwritev(&s->ctx, fd, iov, iovcnt, offset); + if (err < 0) { + err = -errno; + } + }); + return err; +} diff --git a/hw/9pfs/virtio-9p-coth.h b/hw/9pfs/virtio-9p-coth.h index 17ffd76..fa408f8 100644 --- a/hw/9pfs/virtio-9p-coth.h +++ b/hw/9pfs/virtio-9p-coth.h @@ -89,4 +89,6 @@ extern int v9fs_co_fsync(V9fsState *, V9fsFidState *, int); extern int v9fs_co_symlink(V9fsState *, V9fsFidState *, const char *, const char *, gid_t); extern int v9fs_co_link(V9fsState *, V9fsString *, V9fsString *); +extern int v9fs_co_pwritev(V9fsState *, V9fsFidState *, + struct iovec *, int, int64_t); #endif