linux-stable.git/fs/jbd2, branch v3.5 Linux kernel stable tree jbd2: use kmem_cache_zalloc wrapper instead of flag 2012-06-01T04:10:32+00:00 Wanlong Gao gaowanlong@cn.fujitsu.com 2012-06-01T04:10:32+00:00 b2f4edb335f23626225a792e0669d1becf68312f Use kmem_cache_zalloc wrapper instead of flag __GFP_ZERO. Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> 
Use kmem_cache_zalloc wrapper instead of flag __GFP_ZERO.

Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
jbd2: checksum data blocks that are stored in the journal 2012-05-27T12:12:12+00:00 Darrick J. Wong djwong@us.ibm.com 2012-05-27T12:12:12+00:00 c390087591dcbecd244c31d979ccdad49ae83364 Calculate and verify checksums of each data block being stored in the journal. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> 
Calculate and verify checksums of each data block being stored in the journal.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
jbd2: checksum commit blocks 2012-05-27T12:10:25+00:00 Darrick J. Wong djwong@us.ibm.com 2012-05-27T12:10:25+00:00 1f56c5890e3e815c6f4eabfc87a8a81f439b6f3d Calculate and verify the checksum of commit blocks. In checksum v2, deprecate most of the checksum v1 commit block checksum fields, since each block has its own checksum. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> 
Calculate and verify the checksum of commit blocks.  In checksum v2,
deprecate most of the checksum v1 commit block checksum fields, since
each block has its own checksum.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
jbd2: checksum descriptor blocks 2012-05-27T12:10:22+00:00 Darrick J. Wong djwong@us.ibm.com 2012-05-27T12:10:22+00:00 3caa487f53f65fd1e3950a6b6ae1709e6c43b334 Calculate and verify a checksum of each descriptor block. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> 
Calculate and verify a checksum of each descriptor block.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
jbd2: checksum revocation blocks 2012-05-27T12:08:24+00:00 Darrick J. Wong djwong@us.ibm.com 2012-05-27T12:08:24+00:00 42a7106de636ebf9c0b93d25b4230e14f5f2682e Compute and verify revoke blocks inside the journal. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> 
Compute and verify revoke blocks inside the journal.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
jbd2: checksum journal superblock 2012-05-27T12:08:22+00:00 Darrick J. Wong djwong@us.ibm.com 2012-05-27T12:08:22+00:00 4fd5ea43bc11602bfabe2c8f5378586d34bd2b0a Calculate and verify a checksum covering the journal superblock. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> 
Calculate and verify a checksum covering the journal superblock.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
jbd2: Grab a reference to the crc32c driver if necessary 2012-05-27T11:50:56+00:00 Darrick J. Wong djwong@us.ibm.com 2012-05-27T11:50:56+00:00 01b5adcebb977bc61b64167adce6d8260c9da33c Obtain a reference to the crc32c driver if needed for the v2 checksum. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> 
Obtain a reference to the crc32c driver if needed for the v2 checksum.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
jbd2: enable journal clients to enable v2 checksumming 2012-05-27T11:48:56+00:00 Darrick J. Wong djwong@us.ibm.com 2012-05-27T11:48:56+00:00 25ed6e8a54df904c875365eebedbd19138a47328 Add in the necessary code so that journal clients can enable the new journal checksumming features. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> 
Add in the necessary code so that journal clients can enable the new
journal checksumming features.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
jbd2: change disk layout for metadata checksumming 2012-05-23T02:43:41+00:00 Darrick J. Wong djwong@us.ibm.com 2012-05-23T02:43:41+00:00 8f888ef846d4481e24c74b4a91ece771d2bcbcb5 Define flags and allocate space in on-disk journal structures to support checksumming of journal metadata. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> 
Define flags and allocate space in on-disk journal structures to support
checksumming of journal metadata.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
jbd2: use GFP_NOFS for blkdev_issue_flush 2012-04-24T01:43:41+00:00 Shaohua Li shli@kernel.org 2012-04-13T02:27:35+00:00 99aa78466777083255b876293e9e83dec7cd809a flush request is issued in transaction commit code path, so looks using GFP_KERNEL to allocate memory for flush request bio falls into the classic deadlock issue. I saw btrfs and dm get it right, but ext4, xfs and md are using GFP. Signed-off-by: Shaohua Li <shli@fusionio.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz> Cc: stable@vger.kernel.org 
flush request is issued in transaction commit code path, so looks using
GFP_KERNEL to allocate memory for flush request bio falls into the classic
deadlock issue.  I saw btrfs and dm get it right, but ext4, xfs and md are
using GFP.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org