From e7467dc6947d7074417aa4cda44b851010fd0795 Mon Sep 17 00:00:00 2001 From: Hari Bathini Date: Mon, 22 May 2017 15:04:47 +0530 Subject: [PATCH] powerpc/fadump: Update comment about offset where fadump is reserved With commit f6e6bedb7731 ("powerpc/fadump: Reserve memory at an offset closer to bottom of RAM"), memory for fadump is no longer reserved at the top of RAM. But there are still a few places which say so. Change them appropriately. Signed-off-by: Hari Bathini Signed-off-by: Michael Ellerman --- Documentation/powerpc/firmware-assisted-dump.txt | 4 ++-- arch/powerpc/kernel/fadump.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/Documentation/powerpc/firmware-assisted-dump.txt b/Documentation/powerpc/firmware-assisted-dump.txt index 9cabaf8a207e..bdd344aa18d9 100644 --- a/Documentation/powerpc/firmware-assisted-dump.txt +++ b/Documentation/powerpc/firmware-assisted-dump.txt @@ -61,8 +61,8 @@ as follows: boot successfully. For syntax of crashkernel= parameter, refer to Documentation/kdump/kdump.txt. If any offset is provided in crashkernel= parameter, it will be ignored - as fadump reserves memory at end of RAM for boot memory - dump preservation in case of a crash. + as fadump uses a predefined offset to reserve memory + for boot memory dump preservation in case of a crash. -- After the low memory (boot memory) area has been saved, the firmware will reset PCI and other hardware state. It will diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index 1bdbe0b257e0..1ec6ea67159c 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -217,8 +217,8 @@ static inline unsigned long fadump_calculate_reserve_size(void) /* * Check if the size is specified through crashkernel= cmdline - * option. If yes, then use that but ignore base as fadump - * reserves memory at end of RAM. + * option. If yes, then use that but ignore base as fadump reserves + * memory at a predefined offset. */ ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(), &size, &base); -- 2.20.1