kernel_optimize_test/arch/sparc/mm
Johannes Weiner 0aad818b2d sparse-vmemmap: specify vmemmap population range in bytes
The sparse code, when asking the architecture to populate the vmemmap,
specifies the section range as a starting page and a number of pages.

This is an awkward interface, because none of the arch-specific code
actually thinks of the range in terms of 'struct page' units and always
translates it to bytes first.

In addition, later patches mix huge page and regular page backing for
the vmemmap.  For this, they need to call vmemmap_populate_basepages()
on sub-section ranges with PAGE_SIZE and PMD_SIZE in mind.  But these
are not necessarily multiples of the 'struct page' size and so this unit
is too coarse.

Just translate the section range into bytes once in the generic sparse
code, then pass byte ranges down the stack.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Bernhard Schmidt <Bernhard.Schmidt@lrz.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: David S. Miller <davem@davemloft.net>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29 15:54:35 -07:00
..
extable.c
fault_32.c readahead: fault retry breaks mmap file read random detection 2012-10-09 16:22:47 +09:00
fault_64.c sparc64: Fix tsb_grow() in atomic context. 2013-02-20 09:46:08 -08:00
gup.c sparc64: Fix get_user_pages_fast() wrt. THP. 2013-02-13 12:22:14 -08:00
highmem.c sparc32: move kmap_init() to highmem.c 2012-07-26 16:46:17 -07:00
hugetlbpage.c mm: use vm_unmapped_area() in hugetlbfs on sparc64 architecture 2012-12-11 17:22:26 -08:00
hypersparc.S
init_32.c mm/SPARC: use free_highmem_page() to free highmem pages into buddy system 2013-04-29 15:54:32 -07:00
init_64.c sparse-vmemmap: specify vmemmap population range in bytes 2013-04-29 15:54:35 -07:00
init_64.h sparc64: Support 2GB and 16GB page sizes for kernel linear mappings. 2012-09-06 18:13:58 -07:00
io-unit.c sparc32: Convert mmu_* interfaces from btfixup to method ops. 2012-05-13 13:57:05 -07:00
iommu.c sparc/iommu: fix typo s/265KB/256KB/ 2013-03-31 19:29:12 -04:00
leon_mm.c sparc32: srmmu_probe now knows about leon too 2012-05-27 23:52:51 -07:00
Makefile sparc32: introduce run-time patching of srmmu access functions 2012-05-27 23:52:49 -07:00
srmmu_access.S sparc32: introduce run-time patching of srmmu access functions 2012-05-27 23:52:49 -07:00
srmmu.c sparc/srmmu: clear trailing edge of bitmap properly 2013-03-31 19:29:12 -04:00
srmmu.h sparc32,leon: move leon mmu functions to leon_mm.c 2012-05-19 23:27:38 -07:00
swift.S
tlb.c sparc64: Fix missing put_cpu_var() in tlb_batch_add_one() when not batching. 2013-04-24 16:52:18 -07:00
tsb.c sparc64: Fix race in TLB batch processing. 2013-04-19 17:26:26 -04:00
tsunami.S
ultra.S sparc64: Fix race in TLB batch processing. 2013-04-19 17:26:26 -04:00
viking.S sparc32: remove runtime btfix support 2012-05-14 14:05:09 -07:00