On Mon, Aug 12, 2024 at 08:11:56PM +0800, Zhang Yi wrote: > From: Zhang Yi <yi.zhang@xxxxxxxxxx> > > Now we allocate ifs if i_blocks_per_folio is larger than one when > writing back dirty folios in iomap_writepage_map(), so we don't attach > an ifs after buffer write to an entire folio until it starts writing > back, if we partial truncate that folio, iomap_invalidate_folio() can't > clear counterpart block's dirty bit as expected. Fix this by advance the > ifs allocation to __iomap_write_begin(). Wouldn't it make more sense to only allocate the ifѕ in iomap_invalidate_folio when it actually is needed? Also do you have a reproducer for this?
