Andreas Dilger wrote:
On Jun 12, 2007 12:17 +0530, Aneesh Kumar K.V wrote:
The below patch add ioctl for migrating ext3 indirect block mapped inode
to ext4 extent mapped inode.
How does this relate to the migrate ioctl used by Takashi in the current
ext4 defragmenter patch series?
You mean EXT4_IOC_DEFRAG ?. I guess the last version of defragmentation
patches (ver4) handled only extent mapped inode.
Ideally, the code shouldn't really care
whether it is migrating from/to a block-mapped or extent-mapped file.
As per the last discussion with Takashi the defragmentation is going to
work on extent mapped file only. The plan right now is to convert a
block mapped inode to extent mapped inode and then defrag. Later we
update the user space tool to issue two ioctl if the user wanted to
defrag a block mapped inode. There will also be a separate command line
option to just migrate.
-aneesh
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