The following commit has been merged into the locking/kcsan branch of tip: Commit-ID: 2443600dc98fdc91661b2e24184f279d1198f8cc Gitweb: https://git.kernel.org/tip/2443600dc98fdc91661b2e24184f279d1198f8cc Author: Will Deacon <will@xxxxxxxxxx> AuthorDate: Mon, 11 May 2020 21:41:36 +01:00 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitterDate: Tue, 12 May 2020 11:04:09 +02:00 sparc32: mm: Reduce allocation size for PMD and PTE tables Now that the page table allocator can free page table allocations smaller than PAGE_SIZE, reduce the size of the PMD and PTE allocations to avoid needlessly wasting memory. Signed-off-by: Will Deacon <will@xxxxxxxxxx> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> Link: https://lkml.kernel.org/r/20200511204150.27858-5-will@xxxxxxxxxx --- arch/sparc/include/asm/pgtsrmmu.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h index 58ea8e8..7708d01 100644 --- a/arch/sparc/include/asm/pgtsrmmu.h +++ b/arch/sparc/include/asm/pgtsrmmu.h @@ -17,8 +17,8 @@ /* Number of contexts is implementation-dependent; 64k is the most we support */ #define SRMMU_MAX_CONTEXTS 65536 -#define SRMMU_PTE_TABLE_SIZE (PAGE_SIZE) -#define SRMMU_PMD_TABLE_SIZE (PAGE_SIZE) +#define SRMMU_PTE_TABLE_SIZE (PTRS_PER_PTE*4) +#define SRMMU_PMD_TABLE_SIZE (PTRS_PER_PMD*4) #define SRMMU_PGD_TABLE_SIZE (PTRS_PER_PGD*4) /* Definition of the values in the ET field of PTD's and PTE's */
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