linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2008-08-19	ext4: journal credits calulation cleanup and fix for non-extent writepage	Mingming Cao	1	-0/+8
	When considering how many journal credits are needed for modifying a chunk of data, we need to account for the super block, inode block, quota blocks and xattr block, indirect/index blocks, also, group bitmap and group descriptor blocks for new allocation (including data and indirect/index blocks). There are many places in ext4 do the calculation on their own and often missed one or two meta blocks, and often they assume single block allocation, and did not considering the multile chunk of allocation case. This patch is trying to cleanup current journal credit code, provides some common helper funtion to calculate the journal credits, to be used for writepage, writepages, DIO, fallocate, migration, defrag, and for both nonextent and extent files. This patch modified the writepage/write_begin credit caculation for nonextent files, to use the new helper function. It also fixed the problem that writepage on nonextent files did not consider the case blocksize <pagesize, thus could possibelly need multiple block allocation in a single transaction. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-07-11	ext4: Use new framework for data=ordered mode in JBD2	Jan Kara	1	-2/+5
	This patch makes ext4 use inode-based implementation of data=ordered mode in JBD2. It allows us to unify some data=ordered and data=writeback paths (especially writepage since we don't have to start a transaction anymore) and remove some buffer walking. Updated fix from Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> to fix file system hang due to corrupt jinode values. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-07-13	ext4: replace __FUNCTION__ occurrences	Stoyan Gaydarov	1	-7/+7
	__FUNCTION__ is gcc-specific, use __func__ instead Signed-off-by: Stoyan Gaydarov <stoyboyker@gmail.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2008-04-29	ext4: move headers out of include/linux	Christoph Hellwig	1	-0/+231
	Move ext4 headers out of include/linux. This is just the trivial move, there's some more thing that could be done later. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>