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authorAtsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp>2013-04-29 15:07:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 15:54:34 -0700
commit13ba3fcbbe31068b1ee7c39a0b58ecbed03c4d72 (patch)
tree07991835bdf224ec3d4fcc1ce630d4b8c08b1c41 /kernel
parent4341fa454796b8a37efd5db98112524e85e7114e (diff)
downloadlinux-13ba3fcbbe31068b1ee7c39a0b58ecbed03c4d72.tar.bz2
kexec, vmalloc: export additional vmalloc layer information
Now, vmap_area_list is exported as VMCOREINFO for makedumpfile to get the start address of vmalloc region (vmalloc_start). The address which contains vmalloc_start value is represented as below: vmap_area_list.next - OFFSET(vmap_area.list) + OFFSET(vmap_area.va_start) However, both OFFSET(vmap_area.va_start) and OFFSET(vmap_area.list) aren't exported as VMCOREINFO. So this patch exports them externally with small cleanup. [akpm@linux-foundation.org: vmalloc.h should include list.h for list_head] Signed-off-by: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Dave Anderson <anderson@redhat.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ingo Molnar <mingo@kernel.org> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/kexec.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 0b1f7e780d46..b574920cbd4b 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1615,7 +1615,8 @@ static int __init crash_save_vmcoreinfo_init(void)
VMCOREINFO_OFFSET(free_area, free_list);
VMCOREINFO_OFFSET(list_head, next);
VMCOREINFO_OFFSET(list_head, prev);
- VMCOREINFO_OFFSET(vm_struct, addr);
+ VMCOREINFO_OFFSET(vmap_area, va_start);
+ VMCOREINFO_OFFSET(vmap_area, list);
VMCOREINFO_LENGTH(zone.free_area, MAX_ORDER);
log_buf_kexec_setup();
VMCOREINFO_LENGTH(free_area.free_list, MIGRATE_TYPES);