kernel_optimize_test/Documentation/vm
Mike Rapoport 9ff4a6b806 arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL
commit 5e545df3292fbd3d5963c68980f1527ead2a2b3f upstream.

ARM is the only architecture that defines CONFIG_ARCH_HAS_HOLES_MEMORYMODEL
which in turn enables memmap_valid_within() function that is intended to
verify existence  of struct page associated with a pfn when there are holes
in the memory map.

However, the ARCH_HAS_HOLES_MEMORYMODEL also enables HAVE_ARCH_PFN_VALID
and arch-specific pfn_valid() implementation that also deals with the holes
in the memory map.

The only two users of memmap_valid_within() call this function after
a call to pfn_valid() so the memmap_valid_within() check becomes redundant.

Remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL and memmap_valid_within() and rely
entirely on ARM's implementation of pfn_valid() that is now enabled
unconditionally.

Link: https://lkml.kernel.org/r/20201101170454.9567-9-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Meelis Roos <mroos@linux.ee>
Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 8dd559d53b ("arm: ioremap: don't abuse pfn_valid() to check if pfn is in RAM")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-05-15 20:00:09 +02:00
..
.gitignore
active_mm.rst docs/vm: fix 'mm_count' vs 'mm_users' counter confusion 2020-10-13 18:38:32 -07:00
arch_pgtable_helpers.rst mm/debug_vm_pgtable/basic: add validation for dirtiness after write protect 2021-07-14 16:56:13 +02:00
balance.rst
cleancache.rst
free_page_reporting.rst
frontswap.rst
highmem.rst
hmm.rst mm/doc: fix a literal block markup 2020-10-16 07:28:20 +02:00
hugetlbfs_reserv.rst
hwpoison.rst
index.rst docs: add some new files to their respective index.rst files 2020-09-10 10:48:20 -06:00
ksm.rst docs: get rid of :c:type explicit declarations for structs 2020-10-15 07:49:40 +02:00
memory-model.rst arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL 2022-05-15 20:00:09 +02:00
mmu_notifier.rst docs/vm: trivial fixes to several spelling mistakes 2020-10-22 16:11:04 -06:00
numa.rst
overcommit-accounting.rst
page_frags.rst
page_migration.rst docs/vm: trivial fixes to several spelling mistakes 2020-10-22 16:11:04 -06:00
page_owner.rst docs/vm: trivial fixes to several spelling mistakes 2020-10-22 16:11:04 -06:00
remap_file_pages.rst
slub.rst mm/slub: clarify verification reporting 2021-06-23 14:42:53 +02:00
split_page_table_lock.rst
swap_numa.rst
transhuge.rst
unevictable-lru.rst
z3fold.rst
zsmalloc.rst
zswap.rst