From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Oeser Subject: Re: [RFC] sys_punchhole() Date: Fri, 11 Nov 2005 09:25:41 +0100 References: <1131664994.25354.36.camel@localhost.localdomain> <20051110153254.5dde61c5.akpm@osdl.org> In-Reply-To: <20051110153254.5dde61c5.akpm@osdl.org> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2834990.SANAYd45pA"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200511110925.48259.ioe-lkml@rameria.de> Sender: owner-linux-mm@kvack.org Return-Path: To: linux-kernel@vger.kernel.org Cc: Andrew Morton , Badari Pulavarty , andrea@suse.de, hugh@veritas.com, linux-mm@kvack.org List-ID: --nextPart2834990.SANAYd45pA Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi, On Friday 11 November 2005 00:32, Andrew Morton wrote: > Badari Pulavarty wrote: > > > > We discussed this in madvise(REMOVE) thread - to add support=20 > > for sys_punchhole(fd, offset, len) to complete the functionality > > (in the future). > >=20 > > http://marc.theaimsgroup.com/?l=3Dlinux-mm&m=3D113036713810002&w=3D2 > >=20 > > What I am wondering is, should I invest time now to do it ? >=20 > I haven't even heard anyone mention a need for this in the past 1-2 years. Because the people need it are usally at the application level. It would be useful with hard disk editing. But this would need a move_blocks within the filesystem, which could attach a given list of blocks to another file. E.g. mremap() for files :-) Both together would make harddisk video editing with linux quite performant and less error prone. Regards Ingo Oeser --nextPart2834990.SANAYd45pA Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQBDdFWMU56oYWuOrkARAs5bAKCUWeuUxd7AWdVsC4jDANe0KvlQRwCdHnBz shv9TBiCqFQ2+WQTas5FK6w= =2JyA -----END PGP SIGNATURE----- --nextPart2834990.SANAYd45pA-- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org