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Date: Tue, 10 Aug 2021 16:37:08 +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, Christoph Hellwig <hch@....de>, Jeff Layton <jlayton@...nel.org>, "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>, Vlastimil Babka <vbabka@...e.cz>, William Kucharski <william.kucharski@...cle.com> Subject: Re: [PATCH v14 025/138] mm/writeback: Add folio_wait_writeback() Matthew Wilcox (Oracle) <willy@...radead.org> wrote: > wait_on_page_writeback_killable() only has one caller, so convert it to > call folio_wait_writeback_killable(). For the wait_on_page_writeback() > callers, add a compatibility wrapper around folio_wait_writeback(). > > Turning PageWriteback() into folio_test_writeback() eliminates a call > to compound_head() which saves 8 bytes and 15 bytes in the two > functions. Unfortunately, that is more than offset by adding the > wait_on_page_writeback compatibility wrapper for a net increase in text > of 7 bytes. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org> > Reviewed-by: Christoph Hellwig <hch@....de> > Acked-by: Jeff Layton <jlayton@...nel.org> > Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com> > Acked-by: Vlastimil Babka <vbabka@...e.cz> > Reviewed-by: William Kucharski <william.kucharski@...cle.com> Reviewed-by: David Howells <dhowells@...hat.com>
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