[PATCH v2 0/5] fs: refactor write_begin/write_end and add ext4 IOCB_DONTCACHE support

[hch at infradead.org]

Thanks, I really like the i915 work to stop the shmem abuse.

I still hate it that we just change the write_begin/end ops while still
in the address_space ops vs passing explicit callbacks, because that
means we'll some other version of that abuse back sooner or later :(