From: Sami Tolvanen <samitolvanen@google.com>
To: device-mapper development <dm-devel@redhat.com>
Cc: Mikulas Patocka <mpatocka@redhat.com>,
Will Drewry <wad@chromium.org>, Kees Cook <keescook@chromium.org>,
Mike Snitzer <snitzer@redhat.com>,
Mandeep Baines <msb@chromium.org>,
linux-kernel@vger.kernel.org, Mark Salyzyn <salyzyn@google.com>
Subject: Re: [dm-devel] [PATCH 0/4] dm verity: add support for error correction
Date: Fri, 6 Nov 2015 20:27:50 +0000 [thread overview]
Message-ID: <20151106202750.GA11849@google.com> (raw)
In-Reply-To: <563CFD6F.4040009@redhat.com>
On Fri, Nov 06, 2015 at 08:20:15PM +0100, Zdenek Kabelac wrote:
> i.e. you have 1G of space - you want to give 250MB as 'redundancy' -
> so create 4 partition....
We cannot afford to set aside 25% of read-only partition space for
redundancy on mobile devices, and would rather not impact performance
any more than dm-verity already does. With error correction we have
0.8% space overhead in our use case and no performance degradation if
the partition is not corrupted.
Sami
next prev parent reply other threads:[~2015-11-06 20:27 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-05 2:02 [PATCH 0/4] dm verity: add support for error correction Sami Tolvanen
2015-11-05 2:02 ` Sami Tolvanen
2015-11-05 2:02 ` [PATCH 1/4] dm verity: clean up duplicate hashing code Sami Tolvanen
2015-11-17 22:32 ` Kees Cook
2015-11-05 2:02 ` [PATCH 2/4] dm verity: separate function for parsing opt args Sami Tolvanen
2015-11-05 2:02 ` Sami Tolvanen
2015-11-17 22:33 ` Kees Cook
2015-12-02 20:16 ` Mike Snitzer
2015-11-05 2:02 ` [PATCH 3/4] dm verity: add support for forward error correction Sami Tolvanen
2015-11-05 5:36 ` kbuild test robot
2015-11-05 5:36 ` kbuild test robot
2015-11-05 22:06 ` kbuild test robot
2015-11-05 22:06 ` kbuild test robot
2015-11-05 2:02 ` [PATCH 4/4] dm verity: ignore zero blocks Sami Tolvanen
2015-11-05 22:13 ` kbuild test robot
2015-11-05 22:13 ` kbuild test robot
2015-11-05 7:34 ` [PATCH 0/4] dm verity: add support for error correction Milan Broz
2015-11-05 17:33 ` Sami Tolvanen
2015-11-09 16:37 ` Mike Snitzer
2015-11-09 19:19 ` Sami Tolvanen
2015-11-09 19:58 ` Mike Snitzer
2015-11-12 10:30 ` Milan Broz
2015-12-03 9:36 ` Sami Tolvanen
2015-11-12 18:50 ` Mikulas Patocka
2015-12-03 9:33 ` Sami Tolvanen
2015-12-02 20:22 ` Mike Snitzer
2015-12-03 9:11 ` Sami Tolvanen
2015-11-06 17:23 ` Mikulas Patocka
2015-11-06 19:06 ` Sami Tolvanen
2015-11-06 19:20 ` [dm-devel] " Zdenek Kabelac
2015-11-06 20:27 ` Sami Tolvanen [this message]
2015-11-06 21:05 ` Zdenek Kabelac
2015-11-06 21:23 ` Sami Tolvanen
2015-11-07 15:29 ` Mikulas Patocka
2015-11-07 15:20 ` Mikulas Patocka
2015-11-07 15:18 ` Mikulas Patocka
2015-11-09 15:06 ` Austin S Hemmelgarn
2015-12-03 14:26 ` [PATCH v2 0/2] " Sami Tolvanen
2015-12-03 14:26 ` [PATCH v2 1/2] dm verity: add support for forward " Sami Tolvanen
2015-12-03 14:26 ` [PATCH v2 2/2] dm verity: ignore zero blocks Sami Tolvanen
2015-12-03 19:54 ` [PATCH v2 0/2] dm verity: add support for error correction Mike Snitzer
2015-12-03 23:05 ` Mike Snitzer
2015-12-04 10:03 ` Sami Tolvanen
2015-12-04 21:09 ` Mike Snitzer
2015-12-07 13:21 ` Sami Tolvanen
2015-12-07 14:58 ` Mike Snitzer
2015-12-07 14:58 ` Mike Snitzer
2015-12-07 16:31 ` Sami Tolvanen
2015-12-07 18:07 ` Milan Broz
2015-12-07 19:07 ` Mike Snitzer
2015-12-08 10:18 ` Sami Tolvanen
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