On Sat, Sep 10, 2022 at 08:50:57AM +0200, Christoph Hellwig wrote: > erofs uses an additional address space for compressed data read from disk > in addition to the one directly associated with the inode. Reading into > the lower address space is open coded using add_to_page_cache_lru instead > of using the filemap.c helper for page allocation micro-optimizations, > which means it is not covered by the MM PSI annotations for ->read_folio > and ->readahead, so add manual ones instead. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
