From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51500) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V3pUs-0006I9-4C for qemu-devel@nongnu.org; Mon, 29 Jul 2013 11:36:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1V3pUl-0002bG-Av for qemu-devel@nongnu.org; Mon, 29 Jul 2013 11:36:29 -0400 Received: from mx1.redhat.com ([209.132.183.28]:38129) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V3pUl-0002bA-2m for qemu-devel@nongnu.org; Mon, 29 Jul 2013 11:36:23 -0400 From: Stefan Hajnoczi Date: Mon, 29 Jul 2013 17:36:07 +0200 Message-Id: <1375112172-24863-2-git-send-email-stefanha@redhat.com> In-Reply-To: <1375112172-24863-1-git-send-email-stefanha@redhat.com> References: <1375112172-24863-1-git-send-email-stefanha@redhat.com> Subject: [Qemu-devel] [PATCH 1/6] gluster: Add image resize support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Paolo Bonzini , Anthony Liguori , Stefan Hajnoczi , Bharata B Rao 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 Acked-by: Stefan Hajnoczi Signed-off-by: Stefan Hajnoczi --- 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, -- 1.8.1.4