From c0bb9e45f3a7f67fc358946727bc3d5f23d0f55d Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 25 Aug 2010 10:22:58 +1000 Subject: kdump: Allow shrinking of kdump region to be overridden On ppc64 the crashkernel region almost always overlaps an area of firmware. This works fine except when using the sysfs interface to reduce the kdump region. If we free the firmware area we are guaranteed to crash. Rename free_reserved_phys_range to crash_free_reserved_phys_range and make it a weak function so we can override it. Signed-off-by: Anton Blanchard Signed-off-by: Benjamin Herrenschmidt --- include/linux/kexec.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/kexec.h') diff --git a/include/linux/kexec.h b/include/linux/kexec.h index 03e8e8dbc577..c2478a342cd7 100644 --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -208,6 +208,7 @@ int __init parse_crashkernel(char *cmdline, unsigned long long system_ram, unsigned long long *crash_size, unsigned long long *crash_base); int crash_shrink_memory(unsigned long new_size); size_t crash_get_memory_size(void); +void crash_free_reserved_phys_range(unsigned long begin, unsigned long end); #else /* !CONFIG_KEXEC */ struct pt_regs; -- cgit v1.2.3