linux-kernel - [PATCH 0/3] mm: Swap checksum

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Message-ID: <4BF81D87.6010506@cesarb.net>
Date:	Sat, 22 May 2010 15:08:07 -0300
From:	Cesar Eduardo Barros <cesarb@...arb.net>
To:	linux-mm@...ck.org
CC:	linux-kernel@...r.kernel.org
Subject: [PATCH 0/3] mm: Swap checksum

Add support for checksumming the swap pages written to disk, using the
same checksum as btrfs (crc32c). Since the contents of the swap do not
matter after a shutdown, the checksum is kept in memory only.

Note that this code does not checksum the software suspend image.

Cesar Eduardo Barros (3):
       mm/swapfile.c: better messages for swap_info_get
       kernel/power/swap.c: do not use end_swap_bio_read
       mm: Swap checksum

  include/linux/swap.h |   31 +++++++-
  kernel/power/swap.c  |   21 +++++-
  mm/Kconfig           |   22 +++++
  mm/Makefile          |    1 +
  mm/page_io.c         |   92 ++++++++++++++++++--
  mm/swapcsum.c        |   94 +++++++++++++++++++++
  mm/swapfile.c        |  186 ++++++++++++++++++++++++++++++++++++++++--
  7 files changed, 429 insertions(+), 18 deletions(-)
  create mode 100644 mm/swapcsum.c

-- 
Cesar Eduardo Barros
cesarb@...arb.net
cesar.barros@...il.com
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