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From: Badari Pulavarty <pbadari@us.ibm.com>
To: Jeff Dike <jdike@addtoit.com>
Cc: Hugh Dickins <hugh@veritas.com>,
	akpm@osdl.org, andrea@suse.de, dvhltc@us.ibm.com,
	linux-mm <linux-mm@kvack.org>,
	Blaisorblade <blaisorblade@yahoo.it>
Subject: Re: [RFC] madvise(MADV_TRUNCATE)
Date: Fri, 28 Oct 2005 17:03:21 -0700	[thread overview]
Message-ID: <1130544201.23729.167.camel@localhost.localdomain> (raw)
In-Reply-To: <20051028184235.GC8514@ccure.user-mode-linux.org>

On Fri, 2005-10-28 at 14:42 -0400, Jeff Dike wrote:
> On Fri, Oct 28, 2005 at 09:19:14AM -0700, Badari Pulavarty wrote:
> > My touch tests so far, doesn't really verify data after freeing. I was
> > thinking about writing cases. If I can use UML to do it, please send it
> > to me. I would rather test with real world case :)
> 
> Grab and unpack http://www.user-mode-linux.org/~jdike/truncate.tar.bz2

Here is the update on the patch.

I found few bugs in my shmem_truncate_range() (surprise!!)
	- BUG_ON(subdir->nr_swapped > offset);
	- freeing up the "subdir" while it has some more entries
	swapped.

I wrote some tests to force swapping and working out the bugs.
I haven't tried your test yet, since its kind of intimidating :(

Thanks,
Badari

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  parent reply	other threads:[~2005-10-29  0:03 UTC|newest]

Thread overview: 86+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-10-26 22:49 [RFC] madvise(MADV_TRUNCATE) Badari Pulavarty
2005-10-27  8:38 ` Andi Kleen
2005-10-27 13:17   ` Andrea Arcangeli
2005-10-27 15:00     ` Badari Pulavarty
2005-10-27 15:11       ` Andrea Arcangeli
2005-10-27 18:20         ` Andrew Morton
2005-10-27 18:35           ` Badari Pulavarty
2005-10-27 18:50             ` Andrew Morton
2005-10-27 19:40               ` Gerrit Huizenga
2005-10-27 19:56                 ` Andi Kleen
2005-10-27 23:21                   ` Darren Hart
2005-10-27 20:05               ` Theodore Ts'o
2005-10-27 20:16                 ` Andrea Arcangeli
2005-10-28  1:42                 ` Badari Pulavarty
2005-10-28 16:33                   ` Theodore Ts'o
2005-10-27 20:22               ` Jeff Dike
2005-10-27 20:04           ` Andrea Arcangeli
2005-10-27 20:50             ` Andrew Morton
2005-10-27 21:37               ` Andrea Arcangeli
2005-10-27 22:23                 ` Andrew Morton
2005-10-27 23:05                   ` Badari Pulavarty
2005-10-27 23:16                     ` Andrew Morton
2005-10-27 23:33                       ` Peter Chubb
2005-10-28  0:22                   ` Andrea Arcangeli
2005-10-28  0:32                     ` Andrew Morton
2005-10-28  1:10                       ` Andrea Arcangeli
2005-10-28  1:27                       ` Badari Pulavarty
2005-10-28  2:00                         ` Andrew Morton
2005-10-27 22:32               ` Badari Pulavarty
2005-10-27 23:28             ` Peter Chubb
2005-10-27 23:49               ` Andrew Morton
2005-10-27 23:56                 ` Nathan Scott
2005-10-28  0:15                   ` Andrea Arcangeli
2005-10-27 23:59                 ` Peter Chubb
2005-10-28  3:46 ` Jeff Dike
2005-10-28 11:03   ` Blaisorblade
2005-10-28 13:29     ` Andrea Arcangeli
2005-10-28 16:56       ` Blaisorblade
2005-10-28 16:16     ` Badari Pulavarty
2005-10-28 18:40       ` Blaisorblade
2005-10-28 18:56         ` Badari Pulavarty
2005-10-29  0:35         ` Badari Pulavarty
2005-10-28 16:19   ` Badari Pulavarty
2005-10-28 17:10     ` Blaisorblade
2005-10-28 18:28       ` Jeff Dike
2005-10-28 18:44         ` Blaisorblade
2005-10-28 18:42     ` Jeff Dike
2005-10-28 18:54       ` Badari Pulavarty
2005-10-29  0:03       ` Badari Pulavarty [this message]
2005-10-29  2:51         ` Jeff Dike
2005-10-31 16:34           ` Badari Pulavarty
2005-10-31 19:15           ` Badari Pulavarty
2005-10-31 19:49           ` [RFC][PATCH] madvise(MADV_TRUNCATE) Badari Pulavarty
2005-11-01  0:05             ` Jeff Dike
2005-11-02  1:15               ` [PATCH] 2.6.14 patch for supporting madvise(MADV_FREE) Badari Pulavarty
2005-11-02  1:43                 ` Andrea Arcangeli
2005-11-02 15:49                   ` Badari Pulavarty
2005-11-02 16:12                   ` [PATCH] 2.6.14 patch for supporting madvise(MADV_REMOVE) Badari Pulavarty
2005-11-02 19:54                     ` New bug in patch and existing Linux code - race with install_page() (was: Re: [PATCH] 2.6.14 patch for supporting madvise(MADV_REMOVE)) Blaisorblade
2005-11-02 20:12                       ` Hugh Dickins
2005-11-02 20:45                         ` Hugh Dickins
2005-11-02 21:36                       ` Badari Pulavarty
2005-11-02 21:55                         ` Hugh Dickins
2005-11-02 22:02                           ` Badari Pulavarty
2005-11-12  0:25                     ` [PATCH] 2.6.14 patch for supporting madvise(MADV_REMOVE) Andrew Morton
2005-11-12  0:34                       ` Badari Pulavarty
2005-11-12  1:43                         ` Andrew Morton
2005-11-12  4:41                           ` Badari Pulavarty
2006-01-16 13:06                             ` differences between MADV_FREE and MADV_DONTNEED Andrea Arcangeli
2006-01-16 16:02                               ` Suleiman Souhlal
2006-01-16 16:28                                 ` Andrea Arcangeli
2006-01-16 17:03                                   ` Suleiman Souhlal
2006-01-16 17:24                                     ` Andrea Arcangeli
2006-01-16 21:43                                       ` Eric W. Biederman
2006-01-17  0:24                                         ` Suleiman Souhlal
2006-01-17  1:04                                           ` Nicholas Miell
2006-01-17 12:43                                             ` Christoph Hellwig
2006-01-17 18:23                                               ` Eric W. Biederman
2006-01-17 22:55                                                 ` Nicholas Miell
2007-03-01 18:11                                                 ` Samuel Thibault
2006-01-17 19:06                                               ` Badari Pulavarty
2006-01-17  1:06                               ` Blaisorblade
2006-01-17  1:33                                 ` Andrea Arcangeli
2005-11-12  0:34                     ` [PATCH] 2.6.14 patch for supporting madvise(MADV_REMOVE) Andrew Morton
2005-10-28 17:55   ` [RFC] madvise(MADV_TRUNCATE) Blaisorblade
2005-10-28 21:23     ` Theodore Ts'o

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