Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754256Ab0KRB4V (ORCPT ); Wed, 17 Nov 2010 20:56:21 -0500 Received: from mx1.redhat.com ([209.132.183.28]:30508 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754180Ab0KRB4T (ORCPT ); Wed, 17 Nov 2010 20:56:19 -0500 From: Josef Bacik To: david@fromorbit.com, linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, cmm@us.ibm.com, cluster-devel@redhat.com, joel.becker@oracle.com, jack@suse.cz Subject: [PATCH 5/6] Btrfs: fail if we try to use hole punch Date: Wed, 17 Nov 2010 20:46:19 -0500 Message-Id: <1290044780-2902-6-git-send-email-josef@redhat.com> In-Reply-To: <1290044780-2902-1-git-send-email-josef@redhat.com> References: <1290044780-2902-1-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: 1084 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..6f08892 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/