Re: [PATCH v3 2/2] secretmem: optimize page_is_secretmem()
Matthew Wilcox <[email protected]> Fri, 7 May 2021 16:01:44 +0100
| Newsgroups | org.01.lists.linux-nvdimm,org.infradead.lists.linux-arm-kernel,org.infradead.lists.linux-riscv,org.kernel.vger.linux-api,org.kernel.vger.linux-arch,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-kernel,org.kernel.vger.linux-kselftest,org.kvack.linux-mm |
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On Tue, Apr 20, 2021 at 06:00:49PM +0300, Mike Rapoport wrote: > + mapping = (struct address_space *) > + ((unsigned long)page->mapping & ~PAGE_MAPPING_FLAGS); > + > + if (mapping != page->mapping) > + return false; > + > + return page->mapping->a_ops == &secretmem_aops; ... why do you go back to page->mapping here? return mapping->a_ops == &secretmem_aops _______________________________________________ Linux-nvdimm mailing list -- [email protected] To unsubscribe send an email to [email protected]