[PATCH 00/21] erofs: patchset addressing Christoph's comments

[Christoph Hellwig]

On Tue, Sep 03, 2019 at 04:17:49PM +0800, Gao Xiang wrote:
> I implement a prelimitary version, but I have no idea it is a really
> cleanup for now.

The fact that this has to guess the block device address_space
implementation is indeed pretty ugly.  I'd much prefer to just use
read_cache_page_gfp, and live with the fact that this allocates
bufferheads behind you for now.  I'll try to speed up my attempts to
get rid of the buffer heads on the block device mapping instead.