On Tue, Nov 23, 2021 at 11:09:16AM -0800, Shakeel Butt wrote: > The deferred THPs are split on memory pressure through shrinker > callback and splitting of THP during reclaim can fail for several > reasons like unable to lock the THP, under writeback or unexpected > number of pins on the THP. Such pages are put back on the deferred split > list for consideration later. However kernel does not update the > deferred queue size on putting back the pages whose split was failed. > This patch fixes that. Hm. No. split_huge_page_to_list() updates the queue size on split success. NAK. -- Kirill A. Shutemov
