[PATCH] erofs: remove unneeded parameter

[Gao Xiang]

On Wed, Sep 16, 2020 at 10:33:04PM +0800, Gao Xiang wrote:
> Hi Chao,
> 
> On Wed, Sep 16, 2020 at 10:06:04PM +0800, Chao Yu wrote:
> > From: Chao Yu <yuchao0 at huawei.com>
> > 
> > In below call path, no page will be cached into @pagepool list
> > or grabbed from @pagepool list:
> > - z_erofs_readpage
> >  - z_erofs_do_read_page
> >   - preload_compressed_pages
> >   - erofs_allocpage
> > 
> > Let's get rid of this unneeded parameter.
> 
> That would be unneeded after .readahead() is introduced recently
> (so add_to_page_cache_lru() is also moved to mm code), so I agree
> with you on it.

(cont.)

... also it'd be better to add such historical reason to the commit
message... since it was of some use before...

Thanks,
Gao Xiang