From: "Ragnar Kjørstad" <kernel@ragnark.vestdata.no>
To: Pavel Machek <pavel@suse.cz>
Cc: Andrew Morton <akpm@osdl.org>,
Badari Pulavarty <pbadari@us.ibm.com>,
andrea@suse.de, hugh@veritas.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [RFC] sys_punchhole()
Date: Fri, 18 Nov 2005 17:42:27 +0100 [thread overview]
Message-ID: <20051118164227.GA14697@vestdata.no> (raw)
In-Reply-To: <20051113150906.GA2193@spitz.ucw.cz>
On Sun, Nov 13, 2005 at 03:09:06PM +0000, Pavel Machek wrote:
> > > We discussed this in madvise(REMOVE) thread - to add support
> > > for sys_punchhole(fd, offset, len) to complete the functionality
> > > (in the future).
> > >
> > > http://marc.theaimsgroup.com/?l=linux-mm&m=113036713810002&w=2
> > >
> > > What I am wondering is, should I invest time now to do it ?
> >
> > I haven't even heard anyone mention a need for this in the past 1-2 years.
>
> Some database people wanted it maybe month ago. It was replaced by some
> madvise hack...
sys_punchhole is also potentially very useful for Hirarchial Storage
Management. (Holes are typically used for data that have been migrated
to tape).
--
Ragnar Kjørstad
WARNING: multiple messages have this Message-ID (diff)
From: "Ragnar Kjørstad" <kernel@ragnark.vestdata.no>
To: Pavel Machek <pavel@suse.cz>
Cc: Andrew Morton <akpm@osdl.org>,
Badari Pulavarty <pbadari@us.ibm.com>,
andrea@suse.de, hugh@veritas.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [RFC] sys_punchhole()
Date: Fri, 18 Nov 2005 17:42:27 +0100 [thread overview]
Message-ID: <20051118164227.GA14697@vestdata.no> (raw)
In-Reply-To: <20051113150906.GA2193@spitz.ucw.cz>
On Sun, Nov 13, 2005 at 03:09:06PM +0000, Pavel Machek wrote:
> > > We discussed this in madvise(REMOVE) thread - to add support
> > > for sys_punchhole(fd, offset, len) to complete the functionality
> > > (in the future).
> > >
> > > http://marc.theaimsgroup.com/?l=linux-mm&m=113036713810002&w=2
> > >
> > > What I am wondering is, should I invest time now to do it ?
> >
> > I haven't even heard anyone mention a need for this in the past 1-2 years.
>
> Some database people wanted it maybe month ago. It was replaced by some
> madvise hack...
sys_punchhole is also potentially very useful for Hirarchial Storage
Management. (Holes are typically used for data that have been migrated
to tape).
--
Ragnar Kjorstad
--
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next prev parent reply other threads:[~2005-11-18 16:43 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-10 23:23 [RFC] sys_punchhole() Badari Pulavarty
2005-11-10 23:23 ` Badari Pulavarty
2005-11-10 23:32 ` Andrew Morton
2005-11-10 23:32 ` Andrew Morton
2005-11-10 23:41 ` Badari Pulavarty
2005-11-10 23:41 ` Badari Pulavarty
2005-11-10 23:55 ` Anton Altaparmakov
2005-11-10 23:55 ` Anton Altaparmakov
2005-11-11 8:25 ` Ingo Oeser
2005-11-11 19:07 ` Christoph Lameter
2005-11-11 19:07 ` Christoph Lameter
2005-11-16 12:08 ` Rob Landley
2005-11-16 12:08 ` Rob Landley
2005-11-16 12:20 ` Andrea Arcangeli
2005-11-16 12:20 ` Andrea Arcangeli
2005-11-13 15:09 ` Pavel Machek
2005-11-13 15:09 ` Pavel Machek
2005-11-16 22:01 ` Badari Pulavarty
2005-11-16 22:01 ` Badari Pulavarty
2005-11-16 23:37 ` Ric Wheeler
2005-11-16 23:37 ` Ric Wheeler
2005-11-21 6:46 ` Rob Landley
2005-11-21 6:46 ` Rob Landley
2005-11-18 16:42 ` Ragnar Kjørstad [this message]
2005-11-18 16:42 ` Ragnar Kjørstad
2005-11-18 16:54 ` Badari Pulavarty
2005-11-18 16:54 ` Badari Pulavarty
2005-11-11 5:18 ` Arjan van de Ven
2005-11-11 5:18 ` Arjan van de Ven
2005-11-13 6:11 ` H. Peter Anvin
2005-11-16 16:05 ` Badari Pulavarty
2005-11-16 16:05 ` Badari Pulavarty
2005-11-16 16:38 ` Anton Altaparmakov
2005-11-16 16:38 ` Anton Altaparmakov
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