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authorKen'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>2008-04-28 11:13:04 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-28 17:58:23 +0200
commit122c7a59055c77434118d7dd4dff4b625d4a2c15 (patch)
treea17bffce4d5c9574553fdfa075197c0a7b081fbd /kernel/kexec.c
parents390: implement pte special bit (diff)
downloadlinux-122c7a59055c77434118d7dd4dff4b625d4a2c15.tar.xz
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vmcoreinfo: add page flags values
Add some values of page flags to the vmcoreinfo data. The vmcoreinfo data has the minimum debugging information only for dump filtering. makedumpfile (dump filtering command) gets it to distinguish unnecessary pages, and makedumpfile creates a small dumpfile. An old makedumpfile (v1.2.4 or before) had assumed some values of page flags internally, and this implementation could not follow the change of these values. For example, Christoph Lameter is changing these values by the follwing patch: http://lkml.org/lkml/2008/2/29/463 So a new makedumpfile (v1.2.5) came to need these values and I created this patch to let the kernel output them. Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Cc: Christoph Lameter <clameter@sgi.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: 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/kexec.c')
-rw-r--r--kernel/kexec.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 6782dce93d01..cb85c79989b4 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1405,6 +1405,9 @@ static int __init crash_save_vmcoreinfo_init(void)
VMCOREINFO_LENGTH(zone.free_area, MAX_ORDER);
VMCOREINFO_LENGTH(free_area.free_list, MIGRATE_TYPES);
VMCOREINFO_NUMBER(NR_FREE_PAGES);
+ VMCOREINFO_NUMBER(PG_lru);
+ VMCOREINFO_NUMBER(PG_private);
+ VMCOREINFO_NUMBER(PG_swapcache);
arch_crash_save_vmcoreinfo();