From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:49093) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QPNtX-0008Di-9e for qemu-devel@nongnu.org; Wed, 25 May 2011 19:53:45 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QPNtV-0007Yg-6I for qemu-devel@nongnu.org; Wed, 25 May 2011 19:53:42 -0400 Received: from e38.co.us.ibm.com ([32.97.110.159]:46982) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QPNtU-0007Y9-H2 for qemu-devel@nongnu.org; Wed, 25 May 2011 19:53:40 -0400 Received: from d03relay05.boulder.ibm.com (d03relay05.boulder.ibm.com [9.17.195.107]) by e38.co.us.ibm.com (8.14.4/8.13.1) with ESMTP id p4PNjShT019120 for ; Wed, 25 May 2011 17:45:28 -0600 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay05.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p4PNrZoi254704 for ; Wed, 25 May 2011 17:53:35 -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 p4PHr8q0018629 for ; Wed, 25 May 2011 11:53:08 -0600 From: "Venkateswararao Jujjuri (JV)" Date: Wed, 25 May 2011 16:53:15 -0700 Message-Id: <1306367597-797-28-git-send-email-jvrao@linux.vnet.ibm.com> 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> Subject: [Qemu-devel] [PATCH 27/29] hw/9pfs: Add yield support for preadv coroutine List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: "Venkateswararao Jujjuri \"" , stefanha@linux.vnet.ibm.com, "Aneesh Kumar K.V" 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 e0d032d..e388146 100644 --- a/hw/9pfs/cofile.c +++ b/hw/9pfs/cofile.c @@ -144,3 +144,20 @@ int v9fs_co_pwritev(V9fsState *s, V9fsFidState *fidp, }); return err; } + +int v9fs_co_preadv(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->preadv(&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 fa408f8..5fa2972 100644 --- a/hw/9pfs/virtio-9p-coth.h +++ b/hw/9pfs/virtio-9p-coth.h @@ -91,4 +91,6 @@ extern int v9fs_co_symlink(V9fsState *, V9fsFidState *, const char *, extern int v9fs_co_link(V9fsState *, V9fsString *, V9fsString *); extern int v9fs_co_pwritev(V9fsState *, V9fsFidState *, struct iovec *, int, int64_t); +extern int v9fs_co_preadv(V9fsState *, V9fsFidState *, + struct iovec *, int, int64_t); #endif -- 1.7.1