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| author | Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> | 2008-01-08 15:33:05 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-01-08 16:10:36 -0800 |
| commit | 83a08e7c6ed533a47631794e7f618a98094b4129 (patch) | |
| tree | cf3246a639fc66b4a81968c78edad33598729029 /kernel/kexec.c | |
| parent | caeeeecfdaeada2998eb3c29c3ebd59afb79ef06 (diff) | |
| download | linux-83a08e7c6ed533a47631794e7f618a98094b4129.tar.gz linux-83a08e7c6ed533a47631794e7f618a98094b4129.tar.bz2 linux-83a08e7c6ed533a47631794e7f618a98094b4129.zip | |
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 <ying.huang@intel.com>
Tested-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Acked-by: Simon Horman <horms@verge.net.au>
Cc: David Rientjes <rientjes@google.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.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c index aa74a1ef2da8..9a26eec9eb04 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(); |