Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752707AbbDUInX (ORCPT ); Tue, 21 Apr 2015 04:43:23 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:40155 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751473AbbDUInU (ORCPT ); Tue, 21 Apr 2015 04:43:20 -0400 Date: Tue, 21 Apr 2015 01:43:12 -0700 From: Christoph Hellwig To: Al Viro Cc: Christoph Hellwig , David Howells , NeilBrown , Chris Mason , Josef Bacik , David Sterba , Dave Chinner , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org Subject: Re: [PATCH 3/3] btrfs: set FS_SUPPORTS_SEEK_HOLE flag. Message-ID: <20150421084312.GA1088@infradead.org> References: <20150420193347.29378d69@notabene.brown> <20150420052752.26554.13596.stgit@notabene.brown> <20150420052558.26554.97143.stgit@notabene.brown> <30419.1429519662@warthog.procyon.org.uk> <31824.1429523209@warthog.procyon.org.uk> <20150420094855.GA21116@infradead.org> <20150420125835.GJ889@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150420125835.GJ889@ZenIV.linux.org.uk> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 575 Lines: 14 On Mon, Apr 20, 2015 at 01:58:35PM +0100, Al Viro wrote: > > > Do ext4 and xfs support this, do you know? > > > > Yes. As do f2fs, ocfs2, gfs2, ceph and NFSv4.2 > > Er... Nominally, gfs2 supports it. By treating all files as "there's a > hole starting at EOF". Same as ext2 or even minix... Yeah remove gfs2 from the list. -- 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/