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Date: Tue, 10 Aug 2021 22:54:38 +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> Subject: Re: [PATCH v14 085/138] mm/filemap: Add filemap_alloc_folio Matthew Wilcox (Oracle) <willy@...radead.org> wrote: > Reimplement __page_cache_alloc as a wrapper around filemap_alloc_folio > to allow filesystems to be converted at our leisure. Increases > kernel text size by 133 bytes, mostly in cachefiles_read_backing_file(). > pagecache_get_page() shrinks by 32 bytes, though. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org> > Reviewed-by: Christoph Hellwig <hch@....de> > ... > +static inline struct page *__page_cache_alloc(gfp_t gfp) > +{ > + return &filemap_alloc_folio(gfp, 0)->page; > +} Might be worth a note that this *will* return NULL if the allocation fails, though I guess it's deprecated? Reviewed-by: David Howells <dhowells@...hat.com>
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