tree 45fb2105bd9e7112fa0fc51428d44da6a37564a7
parent 6ab39b1bd3474aab57e10cc90377b9a3b94a72d4
author Alexander Graf <agraf@suse.de> 1401092878 +0200
committer Alexander Graf <agraf@suse.de> 1402917878 +0200

macio ide: Do remainder access asynchronously

The macio IDE controller has some pretty nasty magic in its implementation to
allow for unaligned sector accesses. We used to handle these accesses
synchronously inside the IO callback handler.

However, the block infrastructure changed below our feet and now it's impossible
to call a synchronous block read/write from the aio callback handler of a
previous block access.

Work around that limitation by making the unaligned handling bits also go
through our asynchronous handler.

This fixes booting Mac OS X for me.

Reported-by: John Arbuckle <programmingkidx@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>