Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=83a08e7c6ed533a47631794e7f618a98094b4129
Commit: 83a08e7c6ed533a47631794e7f618a98094b4129
Parent: caeeeecfdaeada2998eb3c29c3ebd59afb79ef06
Author: Ken'ichi Ohmichi <[EMAIL PROTECTED]>
AuthorDate: Tue Jan 8 15:33:05 2008 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue Jan 8 16:10:36 2008 -0800
vmcoreinfo: add the array length of "free_list" for filtering free pages
This patch adds the array length of "free_area.free_list" to the vmcoreinfo
data so that makedumpfile (dump filtering command) can exclude all free
pages
in linux-2.6.24.
makedumpfile creates a small dumpfile by excluding unnecessary pages for the
analysis. To distinguish unnecessary pages, makedumpfile gets the vmcoreinfo
data which has the minimum debugging information only for dump filtering.
In 2.6.24-rc1 or later, the free_area.free_list is an array which has one
list
for each migrate types instead of a single list. makedumpfile needs the
array
length of "free_area.free_list" and the vmcoreinfo data should contain it.
Signed-off-by: Huang Ying <[EMAIL PROTECTED]>
Tested-by: Ken'ichi Ohmichi <[EMAIL PROTECTED]>
Acked-by: Simon Horman <[EMAIL PROTECTED]>
Cc: David Rientjes <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
kernel/kexec.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/kernel/kexec.c b/kernel/kexec.c
index aa74a1e..9a26eec 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1404,6 +1404,7 @@ static int __init crash_save_vmcoreinfo_init(void)
VMCOREINFO_OFFSET(list_head, next);
VMCOREINFO_OFFSET(list_head, prev);
VMCOREINFO_LENGTH(zone.free_area, MAX_ORDER);
+ VMCOREINFO_LENGTH(free_area.free_list, MIGRATE_TYPES);
VMCOREINFO_NUMBER(NR_FREE_PAGES);
arch_crash_save_vmcoreinfo();
-
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