From: "Darrick J. Wong" <djwong@us.ibm.com>
To: Andreas Dilger <adilger.kernel@dilger.ca>,
Theodore Tso <tytso@mit.edu>,
"Darrick J. Wong" <djwong@us.ibm.com>
Cc: Sunil Mushran <sunil.mushran@oracle.com>,
Amir Goldstein <amir73il@gmail.com>,
Andi Kleen <andi@firstfloor.org>, Mingming Cao <cmm@us.ibm.com>,
Joel Becker <jlbec@evilplan.org>,
linux-ext4@vger.kernel.org, Coly Li <colyli@gmail.com>
Subject: [PATCH v2 00/47] e2fsprogs: Add metadata checksumming
Date: Sat, 08 Oct 2011 00:33:15 -0700 [thread overview]
Message-ID: <20111008073315.17888.22132.stgit@elm3c44.beaverton.ibm.com> (raw)
Hi all,
This patchset adds support in e2fsprogs for attaching crc32c checksums to most
of the ext4 metadata objects. A full design document is on the ext4 wiki[1].
Please see the cover letter for the kernel patches for a more thorough summary
of this work.
Please have a look at the design document and patches, and please feel free to
suggest any changes.
v2: Checksum the MMP block, store the checksum type in the superblock, include
the inode generation in file checksums, and finally solve the problem of limited
space in block groups by splitting the checksum into two halves.
This patchset has been tested on 3.1.0-rc9 on x64, i386, ppc64, and ppc32. The
patches seems to work fine on all four platforms.
--D
[1] https://ext4.wiki.kernel.org/index.php/Ext4_Metadata_Checksums
next reply other threads:[~2011-10-08 7:36 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-08 7:33 Darrick J. Wong [this message]
2011-10-08 7:33 ` [PATCH 01/47] libext2fs: Read and write full size inodes Darrick J. Wong
2011-10-08 7:33 ` [PATCH 02/47] libext2fs: Add metadata checksum flag Darrick J. Wong
2011-10-08 7:33 ` [PATCH 03/47] debugfs: Optionally ignore bad checksums Darrick J. Wong
2011-10-08 7:33 ` [PATCH 04/47] libext2fs: Add inode checksum support Darrick J. Wong
2011-10-08 7:33 ` [PATCH 05/47] debugfs: Dump inode checksum when appropriate Darrick J. Wong
2011-10-08 7:33 ` [PATCH 06/47] tune2fs: Add inode checksum support Darrick J. Wong
2011-10-08 7:34 ` [PATCH 07/47] e2fsck: Verify and correct inode checksums Darrick J. Wong
2011-10-08 7:34 ` [PATCH 08/47] mke2fs: Allow metadata checksums to be turned on at mkfs time Darrick J. Wong
2011-10-08 7:34 ` [PATCH 09/47] libext2fs: Create the inode bitmap checksum Darrick J. Wong
2011-10-08 7:34 ` [PATCH 10/47] tune2fs: Rewrite inode bitmap checksums Darrick J. Wong
2011-10-08 7:34 ` [PATCH 11/47] dumpe2fs: Display inode bitmap checksum Darrick J. Wong
2011-10-08 7:34 ` [PATCH 12/47] e2fsck: Verify " Darrick J. Wong
2011-10-08 7:34 ` [PATCH 13/47] libext2fs: Create the block " Darrick J. Wong
2011-10-08 7:34 ` [PATCH 14/47] dumpe2fs: Display " Darrick J. Wong
2011-10-08 7:34 ` [PATCH 15/47] e2fsck: Verify " Darrick J. Wong
2011-10-08 7:34 ` [PATCH 16/47] e2fsck: Don't verify bitmap checksums Darrick J. Wong
2011-10-08 7:35 ` [PATCH 17/47] tune2fs: Rewrite block " Darrick J. Wong
2011-10-08 7:35 ` [PATCH 18/47] libext2fs: Verify and calculate extent tree block checksums Darrick J. Wong
2011-10-08 7:35 ` [PATCH 19/47] tune2fs: Enable extent tree checksums Darrick J. Wong
2011-10-08 7:35 ` [PATCH 20/47] libext2fs: Introduce dx_tail and dir_entry_tail Darrick J. Wong
2011-10-08 7:35 ` [PATCH 21/47] debugfs: Print htree internal node checksums Darrick J. Wong
2011-10-08 7:35 ` [PATCH 22/47] libext2fs: Add dx_root/dx_node checksum calculation and verification helpers Darrick J. Wong
2011-10-08 7:35 ` [PATCH 23/47] e2fsck: Verify htree root/node checksums Darrick J. Wong
2011-10-08 7:35 ` [PATCH 24/47] libext2fs: Introduce dir_entry_tail to provide checksums for directory leaf nodes Darrick J. Wong
2011-10-08 7:35 ` [PATCH 25/47] e2fsck: Check directory leaf block checksums Darrick J. Wong
2011-10-08 7:36 ` [PATCH 26/47] tune2fs: Rebuild and checksum directories when toggling metadata_csum or changing UUID Darrick J. Wong
2011-10-08 7:36 ` [PATCH 27/47] libext2fs: Verify and calculate extended attribute block checksums Darrick J. Wong
2011-10-08 7:36 ` [PATCH 28/47] e2fsck: Check " Darrick J. Wong
2011-10-08 7:36 ` [PATCH 29/47] tune2fs: Rewrite " Darrick J. Wong
2011-10-08 7:36 ` [PATCH 30/47] libext2fs: Calculate and verify superblock checksums Darrick J. Wong
2011-10-08 7:36 ` [PATCH 31/47] e2fsck: Handle superblock checksum errors gracefully Darrick J. Wong
2011-10-08 7:36 ` [PATCH 32/47] libext2fs: Use i_generation in inode-related metadata checksums Darrick J. Wong
2011-10-08 7:36 ` [PATCH 33/47] libext2fs: Record the checksum algorithm in use in the superblock Darrick J. Wong
2011-10-08 7:36 ` [PATCH 34/47] tune2fs: Store checksum algorithm type in superblock Darrick J. Wong
2011-10-08 7:37 ` [PATCH 35/47] mke2fs: Record the checksum algorithm in use in the superblock Darrick J. Wong
2011-10-08 7:37 ` [PATCH 36/47] libext2fs: Block group checksum should use metadata_csum algorithm (if feature flag set) Darrick J. Wong
2011-10-08 7:37 ` [PATCH 37/47] tune2fs: Rewrite block group checksums when changing bg_use_meta_csum feature Darrick J. Wong
2011-10-08 7:37 ` [PATCH 38/47] mke2fs: Warn if not enabling all the features that metadata_csum wants Darrick J. Wong
2011-10-08 7:37 ` [PATCH 39/47] libext2fs: Add checksum to MMP block Darrick J. Wong
2011-10-08 7:37 ` [PATCH 40/47] e2fsck: Verify and correct MMP checksum problems Darrick J. Wong
2011-10-08 7:37 ` [PATCH 41/47] tune2fs: Force MMP update when changing metadata_csum flag Darrick J. Wong
2011-10-08 7:37 ` [PATCH 42/47] libext2fs: Add feature flags for jbd2 v2 checksums Darrick J. Wong
2011-10-08 7:37 ` [PATCH 43/47] e2fsck: Check journal superblock checksum prior to recovery Darrick J. Wong
2011-10-08 7:37 ` [PATCH 44/47] e2fsck: Check revoke block checksum during recovery Darrick J. Wong
2011-10-08 7:38 ` [PATCH 45/47] e2fsck: Check descriptor block checksum when recovering journal Darrick J. Wong
2011-10-08 7:38 ` [PATCH 46/47] e2fsck: Check commit block checksum during recovery Darrick J. Wong
2011-10-08 7:38 ` [PATCH 47/47] e2fsck: Verify data block checksums when recovering journal Darrick J. Wong
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