From: Christoph Hellwig <hch@lst.de> To: Palmer Dabbelt <palmer@sifive.com>, Paul Walmsley <paul.walmsley@sifive.com> Cc: linux-mm@kvack.org, Damien Le Moal <damien.lemoal@wdc.com>, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 02/17] mm: stub out all of swapops.h for !CONFIG_MMU Date: Mon, 24 Jun 2019 07:42:56 +0200 Message-ID: <20190624054311.30256-3-hch@lst.de> (raw) In-Reply-To: <20190624054311.30256-1-hch@lst.de> The whole header file deals with swap entries and PTEs, none of which can exist for nommu builds. Signed-off-by: Christoph Hellwig <hch@lst.de> --- include/linux/swapops.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/include/linux/swapops.h b/include/linux/swapops.h index 4d961668e5fc..b02922556846 100644 --- a/include/linux/swapops.h +++ b/include/linux/swapops.h @@ -6,6 +6,8 @@ #include <linux/bug.h> #include <linux/mm_types.h> +#ifdef CONFIG_MMU + /* * swapcache pages are stored in the swapper_space radix tree. We want to * get good packing density in that tree, so the index should be dense in @@ -50,13 +52,11 @@ static inline pgoff_t swp_offset(swp_entry_t entry) return entry.val & SWP_OFFSET_MASK; } -#ifdef CONFIG_MMU /* check whether a pte points to a swap entry */ static inline int is_swap_pte(pte_t pte) { return !pte_none(pte) && !pte_present(pte); } -#endif /* * Convert the arch-dependent pte representation of a swp_entry_t into an @@ -375,4 +375,5 @@ static inline int non_swap_entry(swp_entry_t entry) } #endif +#endif /* CONFIG_MMU */ #endif /* _LINUX_SWAPOPS_H */ -- 2.20.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply index Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-06-24 5:42 RISC-V nommu support v2 Christoph Hellwig 2019-06-24 5:42 ` [PATCH 01/17] mm: provide a print_vma_addr stub for !CONFIG_MMU Christoph Hellwig 2019-06-24 5:42 ` Christoph Hellwig [this message] 2019-06-24 5:42 ` [PATCH 03/17] mm/nommu: fix the MAP_UNINITIALIZED flag Christoph Hellwig 2019-06-24 5:42 ` [PATCH 04/17] irqchip/sifive-plic: set max threshold for ignored handlers Christoph Hellwig 2019-06-24 5:42 ` [PATCH 05/17] riscv: use CSR_SATP instead of the legacy sptbr name in switch_mm Christoph Hellwig 2019-07-01 18:53 ` Atish Patra 2019-06-24 5:43 ` [PATCH 06/17] riscv: refactor the IPI code Christoph Hellwig 2019-06-24 5:43 ` [PATCH 07/17] riscv: abstract out CSR names for supervisor vs machine mode Christoph Hellwig 2019-07-01 18:37 ` Atish Patra 2019-06-24 5:43 ` [PATCH 08/17] riscv: improve the default power off implementation Christoph Hellwig 2019-07-01 21:07 ` Atish Patra 2019-06-24 5:43 ` [PATCH 09/17] riscv: provide a flat entry loader Christoph Hellwig 2019-06-24 5:43 ` [PATCH 10/17] riscv: read the hart ID from mhartid on boot Christoph Hellwig 2019-07-01 21:15 ` Atish Patra 2019-06-24 5:43 ` [PATCH 11/17] riscv: provide native clint access for M-mode Christoph Hellwig 2019-06-24 5:43 ` [PATCH 12/17] riscv: implement remote sfence.i natively " Christoph Hellwig 2019-06-24 5:43 ` [PATCH 13/17] riscv: poison SBI calls " Christoph Hellwig 2019-06-24 5:43 ` [PATCH 14/17] riscv: don't allow selecting SBI-based drivers " Christoph Hellwig 2019-06-24 5:43 ` [PATCH 15/17] riscv: use the correct interrupt levels " Christoph Hellwig 2019-06-24 5:43 ` [PATCH 16/17] riscv: clear the instruction cache and all registers when booting Christoph Hellwig 2019-07-01 21:26 ` Atish Patra 2019-07-08 8:26 ` Palmer Dabbelt 2019-08-13 15:40 ` Christoph Hellwig 2019-08-13 15:37 ` hch 2019-06-24 5:43 ` [PATCH 17/17] riscv: add nommu support Christoph Hellwig 2019-07-12 14:52 ` Vladimir Murzin 2019-06-24 11:47 ` RISC-V nommu support v2 Vladimir Murzin 2019-06-24 11:54 ` Christoph Hellwig 2019-06-24 13:08 ` Vladimir Murzin 2019-06-24 13:16 ` Christoph Hellwig 2019-06-25 7:31 ` Palmer Dabbelt 2019-06-25 12:37 ` Vladimir Murzin 2019-07-01 6:56 ` Christoph Hellwig 2019-07-01 16:06 ` Paul Walmsley -- strict thread matches above, loose matches on Subject: below -- 2019-06-10 22:16 RISC-V nommu support Christoph Hellwig 2019-06-10 22:16 ` [PATCH 02/17] mm: stub out all of swapops.h for !CONFIG_MMU Christoph Hellwig 2019-06-11 10:15 ` Vladimir Murzin 2019-06-11 14:18 ` Christoph Hellwig 2019-06-11 14:36 ` Vladimir Murzin 2019-06-14 9:48 ` Christoph Hellwig
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