From patchwork Wed May 25 23:53:11 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: jvrao X-Patchwork-Id: 97464 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 129F9B6F92 for ; Thu, 26 May 2011 09:58:52 +1000 (EST) Received: from localhost ([::1]:36152 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QPNyT-0003di-Hk for incoming@patchwork.ozlabs.org; Wed, 25 May 2011 19:58:49 -0400 Received: from eggs.gnu.org ([140.186.70.92]:49132) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QPNtY-0008Hx-TY for qemu-devel@nongnu.org; Wed, 25 May 2011 19:53:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QPNtT-0007Xe-Mu for qemu-devel@nongnu.org; Wed, 25 May 2011 19:53:44 -0400 Received: from e38.co.us.ibm.com ([32.97.110.159]:46979) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QPNtT-0007Wu-Cq for qemu-devel@nongnu.org; Wed, 25 May 2011 19:53:39 -0400 Received: from d03relay01.boulder.ibm.com (d03relay01.boulder.ibm.com [9.17.195.226]) by e38.co.us.ibm.com (8.14.4/8.13.1) with ESMTP id p4PNjR81019109 for ; Wed, 25 May 2011 17:45:27 -0600 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay01.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p4PNrYtu203706 for ; Wed, 25 May 2011 17:53:34 -0600 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p4PHr6LK018571 for ; Wed, 25 May 2011 11:53:06 -0600 Received: from oc6675851006.ibm.com (dyn9041079012.austin.ibm.com [9.41.79.12]) by d03av02.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id p4PHqwLu018178; Wed, 25 May 2011 11:53:06 -0600 From: "Venkateswararao Jujjuri (JV)" To: qemu-devel@nongnu.org Date: Wed, 25 May 2011 16:53:11 -0700 Message-Id: <1306367597-797-24-git-send-email-jvrao@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1306367597-797-1-git-send-email-jvrao@linux.vnet.ibm.com> References: <1306367597-797-1-git-send-email-jvrao@linux.vnet.ibm.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) X-Received-From: 32.97.110.159 Cc: "Venkateswararao Jujjuri \"" , stefanha@linux.vnet.ibm.com, "Aneesh Kumar K.V" Subject: [Qemu-devel] [PATCH 23/29] 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 From: Aneesh Kumar K.V Signed-off-by: Aneesh Kumar K.V Signed-off-by: Venkateswararao Jujjuri " --- 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