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From: Badari Pulavarty <pbadari@us.ibm.com>
To: akpm@osdl.org, andrea@suse.de, hugh@veritas.com
Cc: lkml <linux-kernel@vger.kernel.org>, linux-mm <linux-mm@kvack.org>
Subject: [RFC] sys_punchhole()
Date: Thu, 10 Nov 2005 15:23:14 -0800	[thread overview]
Message-ID: <1131664994.25354.36.camel@localhost.localdomain> (raw)

Hi Andrew,

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 ?
Or wait till need arises ? 

My thought line is, I would add a generic_zeroblocks_range() 
function which would zero out the given range of pages and 
flush to disk.  Use this as a default operation, if the 
filesystems doesn't provide a specific function to free up
the blocks. Would this work ?

Suggestions ?

Thanks,
Badari


WARNING: multiple messages have this Message-ID (diff)
From: Badari Pulavarty <pbadari@us.ibm.com>
To: akpm@osdl.org, andrea@suse.de, hugh@veritas.com
Cc: lkml <linux-kernel@vger.kernel.org>, linux-mm <linux-mm@kvack.org>
Subject: [RFC] sys_punchhole()
Date: Thu, 10 Nov 2005 15:23:14 -0800	[thread overview]
Message-ID: <1131664994.25354.36.camel@localhost.localdomain> (raw)

Hi Andrew,

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 ?
Or wait till need arises ? 

My thought line is, I would add a generic_zeroblocks_range() 
function which would zero out the given range of pages and 
flush to disk.  Use this as a default operation, if the 
filesystems doesn't provide a specific function to free up
the blocks. Would this work ?

Suggestions ?

Thanks,
Badari

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             reply	other threads:[~2005-11-10 23:23 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-11-10 23:23 Badari Pulavarty [this message]
2005-11-10 23:23 ` [RFC] sys_punchhole() 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
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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