From 273463b78237b53936a61046bfb4c8e55150ca24 Mon Sep 17 00:00:00 2001 From: Prem Mallappa Date: Fri, 30 Aug 2013 15:35:10 +0530 Subject: MIPS: kdump: Skip walking indirection page for crashkernels KDUMP: skip indirection page, as crashkernel has already copied to destination [ralf@linux-mips.org: cosmetic changes.] Signed-off-by: Prem Mallappa Cc: linux-mips Patchwork: https://patchwork.linux-mips.org/patch/5786/ Signed-off-by: Ralf Baechle --- arch/mips/kernel/relocate_kernel.S | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/mips/kernel/relocate_kernel.S') diff --git a/arch/mips/kernel/relocate_kernel.S b/arch/mips/kernel/relocate_kernel.S index 43d2d78d3287..74bab9ddd0e1 100644 --- a/arch/mips/kernel/relocate_kernel.S +++ b/arch/mips/kernel/relocate_kernel.S @@ -26,6 +26,12 @@ process_entry: PTR_L s2, (s0) PTR_ADD s0, s0, SZREG + /* + * In case of a kdump/crash kernel, the indirection page is not + * populated as the kernel is directly copied to a reserved location + */ + beqz s2, done + /* destination page */ and s3, s2, 0x1 beq s3, zero, 1f -- cgit v1.2.3