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authorOmar Sandoval <osandov@fb.com>2018-08-21 21:55:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-22 10:52:46 -0700
commit23c85094fe1895caefdd19ef624ee687ec5f4507 (patch)
tree13a0d0b93980e585384310a021b3772dc37b9e54 /kernel/crash_core.c
parenteff4345e7fba0aac8665f00e8599b36946d9aaec (diff)
downloadlinux-23c85094fe1895caefdd19ef624ee687ec5f4507.tar.bz2
proc/kcore: add vmcoreinfo note to /proc/kcore
The vmcoreinfo information is useful for runtime debugging tools, not just for crash dumps. A lot of this information can be determined by other means, but this is much more convenient, and it only adds a page at most to the file. Link: http://lkml.kernel.org/r/fddbcd08eed76344863303878b12de1c1e2a04b6.1531953780.git.osandov@fb.com Signed-off-by: Omar Sandoval <osandov@fb.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Bhupesh Sharma <bhsharma@redhat.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: James Morse <james.morse@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/crash_core.c')
-rw-r--r--kernel/crash_core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/crash_core.c b/kernel/crash_core.c
index e7b4025c7b24..a683bfb0530f 100644
--- a/kernel/crash_core.c
+++ b/kernel/crash_core.c
@@ -14,8 +14,8 @@
#include <asm/sections.h>
/* vmcoreinfo stuff */
-static unsigned char *vmcoreinfo_data;
-static size_t vmcoreinfo_size;
+unsigned char *vmcoreinfo_data;
+size_t vmcoreinfo_size;
u32 *vmcoreinfo_note;
/* trusted vmcoreinfo, e.g. we can make a copy in the crash memory */