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mm/page_owner: move free_ts_nsec output to free section in __dump_page_owner()

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The free_ts_nsec field is a free-event timestamp, but it was printed in
the allocation summary line alongside ts_nsec (allocation time).  Move it
to the free section where it logically belongs, together with free_pid and
free_tgid.  This also makes __dump_page_owner() consistent with
print_page_owner(), which only prints ts_nsec in the allocation summary.

The output now groups all free-related information (pid, tgid, timestamp,
stack trace) in one place.

No functional change except output formatting.

Link: https://lore.kernel.org/20260714015117.78351-7-ye.liu@linux.dev
Signed-off-by: Ye Liu <ye.liu@linux.dev>
Acked-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: David Hildenbrand (Arm) <david@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Ye Liu
2026-07-14 09:51:05 +08:00
committed by Andrew Morton
parent c1c94cf658
commit 1f5af031ff
1 changed files with 5 additions and 4 deletions
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9
mm/page_owner.c
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@@ -653,10 +653,10 @@ void __dump_page_owner(const struct page *page)
else
pr_alert("page_owner tracks the page as freed\n");
pr_alert("page last allocated via order %u, migratetype %s, gfp_mask %#x(%pGg), pid %d, tgid %d (%s), ts %llu, free_ts %llu\n",
pr_alert("page last allocated via order %u, migratetype %s, gfp_mask %#x(%pGg), pid %d, tgid %d (%s), ts %llu\n",
page_owner->order, migratetype_names[mt], gfp_mask, &gfp_mask,
page_owner->pid, page_owner->tgid, page_owner->comm,
page_owner->ts_nsec, page_owner->free_ts_nsec);
page_owner->ts_nsec);
handle = READ_ONCE(page_owner->handle);
if (!handle)
@@ -668,8 +668,9 @@ void __dump_page_owner(const struct page *page)
if (!handle) {
pr_alert("page_owner free stack trace missing\n");
} else {
pr_alert("page last free pid %d tgid %d stack trace:\n",
page_owner->free_pid, page_owner->free_tgid);
pr_alert("page last free pid %d tgid %d ts %llu stack trace:\n",
page_owner->free_pid, page_owner->free_tgid,
page_owner->free_ts_nsec);
stack_depot_print(handle);
}