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
Reply instructions:
You may reply publically to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190624054311.30256-3-hch@lst.de \
--to=hch@lst.de \
--cc=damien.lemoal@wdc.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-riscv@lists.infradead.org \
--cc=palmer@sifive.com \
--cc=paul.walmsley@sifive.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Linux-RISC-V Archive on lore.kernel.org
Archives are clonable:
git clone --mirror https://lore.kernel.org/linux-riscv/0 linux-riscv/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 linux-riscv linux-riscv/ https://lore.kernel.org/linux-riscv \
linux-riscv@lists.infradead.org
public-inbox-index linux-riscv
Example config snippet for mirrors
Newsgroup available over NNTP:
nntp://nntp.lore.kernel.org/org.infradead.lists.linux-riscv
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git