diff options
| author | Will Deacon <will@kernel.org> | 2020-04-14 22:40:11 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-13 15:32:00 -0700 |
| commit | 8c8f3156dd40f8bdc58f2ac461374bc804c28e3b (patch) | |
| tree | 78c7e162e943477819899cb9c2d3a64f994bd5c9 /arch/sparc/include | |
| parent | 3f407976ac2953116cb8880a7a18b63bcc81829d (diff) | |
| download | lwn-8c8f3156dd40f8bdc58f2ac461374bc804c28e3b.tar.gz lwn-8c8f3156dd40f8bdc58f2ac461374bc804c28e3b.zip | |
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.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include')
| -rw-r--r-- | arch/sparc/include/asm/pgtsrmmu.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h index 58ea8e8c6ee7..7708d015712b 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 */ |