[PATCH v2 0/4] mm, arch: add generic implementation of pfn_valid() for FLATMEM

Mike Rapoport
2023-01-29T12:43:21Z

From: "Mike Rapoport (IBM)" <rppt@kernel.org>

Hi,

Every architecture that supports FLATMEM memory model defines its own
version of pfn_valid() that essentially compares a pfn to max_mapnr.

Use mips/powerpc version implemented as static inline as a generic
implementation of pfn_valid() and drop its per-architecture definitions

v2:
* fix build on ARM and xtensa
* add Acked- and Reviewed-by, thanks everybody

v1: https://lore.kernel.org/all/20230125190757.22555-1-rppt@kernel.org

Mike Rapoport (IBM) (4):
arm: include asm-generic/memory_model.h from page.h rather than
memory.h
m68k: use asm-generic/memory_model.h for both MMU and !MMU
mips: drop definition of pfn_valid() for DISCONTIGMEM
mm, arch: add generic implementation of pfn_valid() for FLATMEM

arch/alpha/include/asm/page.h | 4 ----
arch/arc/include/asm/page.h | 1 -
arch/arm/include/asm/memory.h | 2 --
arch/arm/include/asm/page.h | 2 ++
arch/csky/include/asm/page.h | 1 -
arch/hexagon/include/asm/page.h | 1 -
arch/ia64/include/asm/page.h | 4 ----
arch/loongarch/include/asm/page.h | 13 -------------
arch/m68k/include/asm/page.h | 6 +-----
arch/m68k/include/asm/page_mm.h | 1 -
arch/m68k/include/asm/page_no.h | 4 ----
arch/microblaze/include/asm/page.h | 1 -
arch/mips/include/asm/page.h | 28 ----------------------------
arch/nios2/include/asm/page.h | 9 ---------
arch/openrisc/include/asm/page.h | 2 --
arch/parisc/include/asm/page.h | 4 ----
arch/powerpc/include/asm/page.h | 9 ---------
arch/riscv/include/asm/page.h | 5 -----
arch/sh/include/asm/page.h | 3 ---
arch/sparc/include/asm/page_32.h | 1 -
arch/um/include/asm/page.h | 1 -
arch/x86/include/asm/page_32.h | 4 ----
arch/x86/include/asm/page_64.h | 4 ----
arch/xtensa/include/asm/page.h | 4 ++--
include/asm-generic/memory_model.h | 12 ++++++++++++
include/asm-generic/page.h | 2 --
26 files changed, 17 insertions(+), 111 deletions(-)

base-commit: 2241ab53cbb5cdb08a6b2d4688feb13971058f65
--
2.35.1