From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40867) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VHy9i-0005qX-UF for qemu-devel@nongnu.org; Fri, 06 Sep 2013 11:41:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VHy9c-0005jb-Uf for qemu-devel@nongnu.org; Fri, 06 Sep 2013 11:41:06 -0400 Received: from mx1.redhat.com ([209.132.183.28]:23267) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VHy9c-0005jV-KK for qemu-devel@nongnu.org; Fri, 06 Sep 2013 11:41:00 -0400 From: Stefan Hajnoczi Date: Fri, 6 Sep 2013 17:39:08 +0200 Message-Id: <1378481953-23099-38-git-send-email-stefanha@redhat.com> In-Reply-To: <1378481953-23099-1-git-send-email-stefanha@redhat.com> References: <1378481953-23099-1-git-send-email-stefanha@redhat.com> Subject: [Qemu-devel] [PULL 37/42] raw-posix: report unwritten extents as zero List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Paolo Bonzini , Stefan Hajnoczi , Anthony Liguori From: Paolo Bonzini These are created for example with XFS_IOC_ZERO_RANGE. Reviewed-by: Eric Blake Signed-off-by: Paolo Bonzini Signed-off-by: Stefan Hajnoczi --- block/raw-posix.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/block/raw-posix.c b/block/raw-posix.c index d011cfd..1b41ea3 100644 --- a/block/raw-posix.c +++ b/block/raw-posix.c @@ -1128,6 +1128,9 @@ static int64_t coroutine_fn raw_co_get_block_status(BlockDriverState *bs, } else { data = f.fe.fe_logical; hole = f.fe.fe_logical + f.fe.fe_length; + if (f.fe.fe_flags & FIEMAP_EXTENT_UNWRITTEN) { + ret |= BDRV_BLOCK_ZERO; + } } #elif defined SEEK_HOLE && defined SEEK_DATA -- 1.8.3.1