Hi all, this series adds support for reading blocks from disk using the iomap interface, and then gradually switched the buffered I/O path to not require buffer heads. It has survived xfstests for 1k and 4k block size.
There are various small changes to the core VFS, block and readahead
code to make this happen.
A git tree is available at:
git://git.infradead.org/users/hch/xfs.git xfs-remove-bufferheads
Gitweb:
http://git.infradead.org/users/hch/xfs.git/shortlog/refs/heads/xfs-remove-bufferheads
