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authorKen'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>2008-04-28 02:13:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-28 08:58:23 -0700
commit122c7a59055c77434118d7dd4dff4b625d4a2c15 (patch)
treea17bffce4d5c9574553fdfa075197c0a7b081fbd
parenta08cb629f546d1cecebe955392197f226e58dbe1 (diff)
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>
-rw-r--r--kernel/kexec.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 6782dce93d0..cb85c79989b 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();