mm: move memtest under mm
authorVladimir Murzin <vladimir.murzin@arm.com>
Tue, 14 Apr 2015 22:48:27 +0000 (15:48 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 14 Apr 2015 23:49:06 +0000 (16:49 -0700)
commit4a20799d11f64e6b8725cacc7619b1ae1dbf9acd
tree7753b51a235867c625ae7a8a8ab040290b43ff37
parent02057967b5d3b77ed47f06ee8fe98e2687fdf18b
mm: move memtest under mm

Memtest is a simple feature which fills the memory with a given set of
patterns and validates memory contents, if bad memory regions is detected
it reserves them via memblock API.  Since memblock API is widely used by
other architectures this feature can be enabled outside of x86 world.

This patch set promotes memtest to live under generic mm umbrella and
enables memtest feature for arm/arm64.

It was reported that this patch set was useful for tracking down an issue
with some errant DMA on an arm64 platform.

This patch (of 6):

There is nothing platform dependent in the core memtest code, so other
platforms might benefit from this feature too.

[linux@roeck-us.net: MEMTEST depends on MEMBLOCK]
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/x86/Kconfig
arch/x86/include/asm/e820.h
arch/x86/mm/Makefile
arch/x86/mm/memtest.c [deleted file]
include/linux/memblock.h
lib/Kconfig.debug
mm/Makefile
mm/memtest.c [new file with mode: 0644]