Re: [PATCH v12 09/20] dax,ext2: Replace xip_truncate_page with dax_truncate_page

[Matthew Wilcox]

On Mon, Jan 12, 2015 at 03:09:58PM -0800, Andrew Morton wrote:
> > + * Similar to block_truncate_page(), this function can be called by a
> > + * filesystem when it is truncating an DAX file to handle the partial page.
> > + *
> > + * We work in terms of PAGE_CACHE_SIZE here for commonality with
> > + * block_truncate_page(), but we could go down to PAGE_SIZE if the filesystem
> > + * took care of disposing of the unnecessary blocks.
> 
> But PAGE_SIZE==PAGE_CACHE_SIZE.  Unclear what you're saying here.

The last I heard, some people were trying to resurrect the PAGE_CACHE_SIZE
> PAGE_SIZE patches.  I'd be grateful if the distinction between PAGE_SIZE
and PAGE_CACHE_SIZE went away, tbh.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/