From: Alexandre Ghiti <alex@ghiti.fr>
To: Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Alexandre Ghiti <alex@ghiti.fr>
Subject: [PATCH] riscv: Use p*d_leaf macros to define p*d_huge
Date: Thu, 20 Feb 2020 01:10:23 -0500 [thread overview]
Message-ID: <20200220061023.958-1-alex@ghiti.fr> (raw)
The newly introduced p*d_leaf macros allow to check if an entry of the
page table map to a physical page instead of the next level. To avoid
duplication of code, use those macros to determine if a page table entry
points to a hugepage.
Suggested-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
arch/riscv/mm/hugetlbpage.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/riscv/mm/hugetlbpage.c b/arch/riscv/mm/hugetlbpage.c
index 0d4747e9d5b5..a6189ed36c5f 100644
--- a/arch/riscv/mm/hugetlbpage.c
+++ b/arch/riscv/mm/hugetlbpage.c
@@ -4,14 +4,12 @@
int pud_huge(pud_t pud)
{
- return pud_present(pud) &&
- (pud_val(pud) & (_PAGE_READ | _PAGE_WRITE | _PAGE_EXEC));
+ return pud_leaf(pud);
}
int pmd_huge(pmd_t pmd)
{
- return pmd_present(pmd) &&
- (pmd_val(pmd) & (_PAGE_READ | _PAGE_WRITE | _PAGE_EXEC));
+ return pmd_leaf(pmd);
}
static __init int setup_hugepagesz(char *opt)
--
2.20.1
next reply other threads:[~2020-02-20 6:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-20 6:10 Alexandre Ghiti [this message]
2020-02-20 6:12 ` [PATCH] riscv: Use p*d_leaf macros to define p*d_huge Anup Patel
2020-03-05 21:15 ` Palmer Dabbelt
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