From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39381) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V0BWh-0002wm-1h for qemu-devel@nongnu.org; Fri, 19 Jul 2013 10:19:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1V0BWe-00042M-Gx for qemu-devel@nongnu.org; Fri, 19 Jul 2013 10:19:18 -0400 Received: from e28smtp07.in.ibm.com ([122.248.162.7]:58342) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V0BWd-00041N-Ro for qemu-devel@nongnu.org; Fri, 19 Jul 2013 10:19:16 -0400 Received: from /spool/local by e28smtp07.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 19 Jul 2013 19:41:18 +0530 Received: from d28relay02.in.ibm.com (d28relay02.in.ibm.com [9.184.220.59]) by d28dlp03.in.ibm.com (Postfix) with ESMTP id 2D1A41258054 for ; Fri, 19 Jul 2013 19:48:31 +0530 (IST) Received: from d28av03.in.ibm.com (d28av03.in.ibm.com [9.184.220.65]) by d28relay02.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r6JEJv9v26869864 for ; Fri, 19 Jul 2013 19:49:59 +0530 Received: from d28av03.in.ibm.com (loopback [127.0.0.1]) by d28av03.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r6JEJ60L021915 for ; Sat, 20 Jul 2013 00:19:06 +1000 From: Bharata B Rao Date: Fri, 19 Jul 2013 19:51:33 +0530 Message-Id: <1374243693-29986-1-git-send-email-bharata@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH] gluster: Add image resize support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, stefanha@gmail.com, Bharata B Rao , pbonzini@redhat.com From: Paolo Bonzini Implement .bdrv_truncate in GlusterFS block driver so that GlusterFS backend can support image resizing. Signed-off-by: Paolo Bonzini Signed-off-by: Bharata B Rao Tested-by: Bharata B Rao --- block/gluster.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/block/gluster.c b/block/gluster.c index 6de418c..645b7f1 100644 --- a/block/gluster.c +++ b/block/gluster.c @@ -493,6 +493,19 @@ out: return NULL; } +static int qemu_gluster_truncate(BlockDriverState *bs, int64_t offset) +{ + int ret; + BDRVGlusterState *s = bs->opaque; + + ret = glfs_ftruncate(s->fd, offset); + if (ret < 0) { + return -errno; + } + + return 0; +} + static BlockDriverAIOCB *qemu_gluster_aio_readv(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, BlockDriverCompletionFunc *cb, void *opaque) @@ -631,6 +644,7 @@ static BlockDriver bdrv_gluster = { .bdrv_create = qemu_gluster_create, .bdrv_getlength = qemu_gluster_getlength, .bdrv_get_allocated_file_size = qemu_gluster_allocated_file_size, + .bdrv_truncate = qemu_gluster_truncate, .bdrv_aio_readv = qemu_gluster_aio_readv, .bdrv_aio_writev = qemu_gluster_aio_writev, .bdrv_aio_flush = qemu_gluster_aio_flush, @@ -650,6 +664,7 @@ static BlockDriver bdrv_gluster_tcp = { .bdrv_create = qemu_gluster_create, .bdrv_getlength = qemu_gluster_getlength, .bdrv_get_allocated_file_size = qemu_gluster_allocated_file_size, + .bdrv_truncate = qemu_gluster_truncate, .bdrv_aio_readv = qemu_gluster_aio_readv, .bdrv_aio_writev = qemu_gluster_aio_writev, .bdrv_aio_flush = qemu_gluster_aio_flush, @@ -669,6 +684,7 @@ static BlockDriver bdrv_gluster_unix = { .bdrv_create = qemu_gluster_create, .bdrv_getlength = qemu_gluster_getlength, .bdrv_get_allocated_file_size = qemu_gluster_allocated_file_size, + .bdrv_truncate = qemu_gluster_truncate, .bdrv_aio_readv = qemu_gluster_aio_readv, .bdrv_aio_writev = qemu_gluster_aio_writev, .bdrv_aio_flush = qemu_gluster_aio_flush, @@ -688,6 +704,7 @@ static BlockDriver bdrv_gluster_rdma = { .bdrv_create = qemu_gluster_create, .bdrv_getlength = qemu_gluster_getlength, .bdrv_get_allocated_file_size = qemu_gluster_allocated_file_size, + .bdrv_truncate = qemu_gluster_truncate, .bdrv_aio_readv = qemu_gluster_aio_readv, .bdrv_aio_writev = qemu_gluster_aio_writev, .bdrv_aio_flush = qemu_gluster_aio_flush, -- 1.7.11.7