Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755466Ab0KHUkm (ORCPT ); Mon, 8 Nov 2010 15:40:42 -0500 Received: from mx1.redhat.com ([209.132.183.28]:23452 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755090Ab0KHUkk (ORCPT ); Mon, 8 Nov 2010 15:40:40 -0500 From: Josef Bacik To: linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, joel.becker@oracle.com, cmm@us.ibm.com, cluster-devel@redhat.com Subject: [PATCH 5/6] Btrfs: fail if we try to use hole punch Date: Mon, 8 Nov 2010 15:32:06 -0500 Message-Id: <1289248327-16308-5-git-send-email-josef@redhat.com> In-Reply-To: <1289248327-16308-1-git-send-email-josef@redhat.com> References: <1289248327-16308-1-git-send-email-josef@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1083 Lines: 32 Btrfs doesn't have the ability to punch holes yet, so make sure we return EOPNOTSUPP if we try to use hole punching through fallocate. This support can be added later. Thanks, Signed-off-by: Josef Bacik --- fs/btrfs/inode.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 78877d7..c590add 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -6936,6 +6936,10 @@ static long btrfs_fallocate(struct inode *inode, int mode, alloc_start = offset & ~mask; alloc_end = (offset + len + mask) & ~mask; + /* We only support the FALLOC_FL_KEEP_SIZE mode */ + if (mode && (mode & FALLOC_FL_KEEP_SIZE)) + return -EOPNOTSUPP; + /* * wait for ordered IO before we have any locks. We'll loop again * below with the locks held. -- 1.6.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/