From f295e53b60eb93ee53ed5ac610374ed293caa57b Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 17 Jun 2016 11:08:06 -0700 Subject: libnvdimm, pmem: allow nfit_test to override pmem_direct_access() Currently phys_to_pfn_t() is an exported symbol to allow nfit_test to override it and indicate that nfit_test-pmem is not device-mapped. Now, we want to enable nfit_test to operate without DMA_CMA and the pmem it provides will no longer be physically contiguous, i.e. won't be capable of supporting direct_access requests larger than a page. Make pmem_direct_access() a weak symbol so that it can be replaced by the tools/testing/nvdimm/ version, and move phys_to_pfn_t() to a static inline now that it no longer needs to be overridden. Acked-by: Johannes Thumshirn Signed-off-by: Dan Williams --- include/linux/pfn_t.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/pfn_t.h b/include/linux/pfn_t.h index 94994810c7c0..a3d90b9da18d 100644 --- a/include/linux/pfn_t.h +++ b/include/linux/pfn_t.h @@ -28,7 +28,10 @@ static inline pfn_t pfn_to_pfn_t(unsigned long pfn) return __pfn_to_pfn_t(pfn, 0); } -extern pfn_t phys_to_pfn_t(phys_addr_t addr, u64 flags); +static inline pfn_t phys_to_pfn_t(phys_addr_t addr, u64 flags) +{ + return __pfn_to_pfn_t(addr >> PAGE_SHIFT, flags); +} static inline bool pfn_t_has_page(pfn_t pfn) { -- cgit v1.2.3