From: Simon Horman <horms@verge.net.au>
Date: Sun, 19 Oct 2008 03:28:29 +0000 (-0700)
Subject: always reserve elfcore header memory in crash kernel
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d9a9855d0b06ca6d6cc92596fedcc03f8512e062;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

always reserve elfcore header memory in crash kernel

elfcore header memory needs to be reserved in a crash kernel.  This means
that the relevant code should be protected by CONFIG_CRASH_DUMP rather
than CONFIG_PROC_VMCORE.

Signed-off-by: Simon Horman <horms@verge.net.au>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index 51b75cea7018..efaff15d8cf1 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -1335,7 +1335,7 @@ kdump_find_rsvd_region (unsigned long size, struct rsvd_region *r, int n)
 }
 #endif
 
-#ifdef CONFIG_PROC_VMCORE
+#ifdef CONFIG_CRASH_DUMP
 /* locate the size find a the descriptor at a certain address */
 unsigned long __init
 vmcore_find_descriptor_size (unsigned long address)
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 60286522d54a..916ba898237f 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -352,7 +352,7 @@ reserve_memory (void)
 	}
 #endif
 
-#ifdef CONFIG_PROC_VMCORE
+#ifdef CONFIG_CRASH_KERNEL
 	if (reserve_elfcorehdr(&rsvd_region[n].start,
 			       &rsvd_region[n].end) == 0)
 		n++;
@@ -496,9 +496,7 @@ static int __init parse_elfcorehdr(char *arg)
 	return 0;
 }
 early_param("elfcorehdr", parse_elfcorehdr);
-#endif
 
-#ifdef CONFIG_PROC_VMCORE
 int __init reserve_elfcorehdr(unsigned long *start, unsigned long *end)
 {
 	unsigned long length;