Commit 8c8f3156 authored Apr 14, 2020 by Will Deacon Committed by David S. Miller May 13, 2020

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>

parent 3f407976

arch/sparc/include/asm/pgtsrmmu.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -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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