When printing page_owner data via the sysfs interface, no free pages will
ever be dumped due to the series of checks in read_page_owner():
/*
* Although we do have the info about past allocation of free
* pages, it's not relevant for current memory usage.
*/
if (!test_bit(PAGE_EXT_OWNER_ALLOCATED, &page_ext->flags))
The free_ts values are still used when dump_page_owner() is called, so
keeping the field for other use cases but removing them for the typical
page_owner case.
Fixes: 866b48526217 ("mm/page_owner: record the timestamp of all pages during free")
Signed-off-by: Audra Mitchell <audra@xxxxxxxxxx>
---
mm/page_owner.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/page_owner.c b/mm/page_owner.c
index 4e2723e1b300..4f13ce7d2452 100644
--- a/mm/page_owner.c
+++ b/mm/page_owner.c
@@ -408,11 +408,11 @@ print_page_owner(char __user *buf, size_t count, unsigned long pfn,
return -ENOMEM;
ret = scnprintf(kbuf, count,
- "Page allocated via order %u, mask %#x(%pGg), pid %d, tgid %d (%s), ts %llu ns, free_ts %llu ns\n",
+ "Page allocated via order %u, mask %#x(%pGg), pid %d, tgid %d (%s), ts %llu ns\n",
page_owner->order, page_owner->gfp_mask,
&page_owner->gfp_mask, page_owner->pid,
page_owner->tgid, page_owner->comm,
- page_owner->ts_nsec, page_owner->free_ts_nsec);
+ page_owner->ts_nsec);
/* Print information relevant to grouping pages by mobility */
pageblock_mt = get_pageblock_migratetype(page);
--
2.41.0
