20 Aug, 2008
1 commit
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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
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: "Theodore Ts'o"
14 Jul, 2008
1 commit
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__FUNCTION__ is gcc-specific, use __func__ instead
Signed-off-by: Stoyan Gaydarov
Cc: Theodore Ts'o
Cc: Mingming Cao
Signed-off-by: Andrew Morton
Signed-off-by: Theodore Ts'o
12 Jul, 2008
1 commit
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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
to fix file system hang due to corrupt jinode values.Signed-off-by: Jan Kara
Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Mingming Cao
Signed-off-by: "Theodore Ts'o"
30 Apr, 2008
1 commit
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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
Signed-off-by: Mingming Cao
Signed-off-by: "Theodore Ts'o"
