Messages in this thread | | | Subject | Re: [PATCH v10 06/33] mm: Add folio_put | From | Vlastimil Babka <> | Date | Fri, 14 May 2021 13:52:11 +0200 |
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On 5/11/21 11:47 PM, Matthew Wilcox (Oracle) wrote: > If we know we have a folio, we can call folio_put() instead of put_page() > and save the overhead of calling compound_head(). Also skips the > devmap checks. > > This commit looks like it should be a no-op, but actually saves 1312 bytes > of text with the distro-derived config that I'm testing. Some functions > grow a little while others shrink. I presume the compiler is making > different inlining decisions. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> > Reviewed-by: Zi Yan <ziy@nvidia.com> > Reviewed-by: Christoph Hellwig <hch@lst.de> > Acked-by: Jeff Layton <jlayton@kernel.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
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