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Date: Tue, 10 Aug 2021 16:35:45 +0100 From: David Howells <dhowells@...hat.com> To: "Matthew Wilcox (Oracle)" <willy@...radead.org> Cc: dhowells@...hat.com, linux-kernel@...r.kernel.org, linux-mm@...ck.org, linux-fsdevel@...r.kernel.org, Vlastimil Babka <vbabka@...e.cz>, William Kucharski <william.kucharski@...cle.com>, Christoph Hellwig <hch@....de>, "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com> Subject: Re: [PATCH v14 023/138] mm/swap: Add folio_rotate_reclaimable() Matthew Wilcox (Oracle) <willy@...radead.org> wrote: > Convert rotate_reclaimable_page() to folio_rotate_reclaimable(). This > eliminates all five of the calls to compound_head() in this function, > saving 75 bytes at the cost of adding 15 bytes to its one caller, > end_page_writeback(). We also save 36 bytes from pagevec_move_tail_fn() > due to using folios there. Net 96 bytes savings. > > Also move its declaration to mm/internal.h as it's only used by filemap.c. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org> > Acked-by: Vlastimil Babka <vbabka@...e.cz> > Reviewed-by: William Kucharski <william.kucharski@...cle.com> > Reviewed-by: Christoph Hellwig <hch@....de> > Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com> Reviewed-by: David Howells <dhowells@...hat.com>
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