From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55907) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VHGST-0003Kb-Ij for qemu-devel@nongnu.org; Wed, 04 Sep 2013 13:01:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VHGSL-0006EF-52 for qemu-devel@nongnu.org; Wed, 04 Sep 2013 13:01:33 -0400 Received: from mail-qc0-x22d.google.com ([2607:f8b0:400d:c01::22d]:48046) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VHGSL-0006E8-19 for qemu-devel@nongnu.org; Wed, 04 Sep 2013 13:01:25 -0400 Received: by mail-qc0-f173.google.com with SMTP id c3so322116qcv.18 for ; Wed, 04 Sep 2013 10:01:24 -0700 (PDT) Sender: Paolo Bonzini From: Paolo Bonzini Date: Wed, 4 Sep 2013 19:00:36 +0200 Message-Id: <1378314038-15525-20-git-send-email-pbonzini@redhat.com> In-Reply-To: <1378314038-15525-1-git-send-email-pbonzini@redhat.com> References: <1378314038-15525-1-git-send-email-pbonzini@redhat.com> Subject: [Qemu-devel] [PATCH v5 19/21] 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: stefanha@redhat.com These are created for example with XFS_IOC_ZERO_RANGE. Reviewed-by: Eric Blake Signed-off-by: Paolo Bonzini --- 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