diff options
Diffstat (limited to 'mm/page_owner.c')
| -rw-r--r-- | mm/page_owner.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/mm/page_owner.c b/mm/page_owner.c index 4f13ce7d2452..e7eba7688881 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -32,6 +32,8 @@ struct page_owner { char comm[TASK_COMM_LEN]; pid_t pid; pid_t tgid; + pid_t free_pid; + pid_t free_tgid; }; static bool page_owner_enabled __initdata; @@ -152,6 +154,8 @@ void __reset_page_owner(struct page *page, unsigned short order) page_owner = get_page_owner(page_ext); page_owner->free_handle = handle; page_owner->free_ts_nsec = free_ts_nsec; + page_owner->free_pid = current->pid; + page_owner->free_tgid = current->tgid; page_ext = page_ext_next(page_ext); } page_ext_put(page_ext); @@ -253,6 +257,8 @@ void __folio_copy_owner(struct folio *newfolio, struct folio *old) new_page_owner->handle = old_page_owner->handle; new_page_owner->pid = old_page_owner->pid; new_page_owner->tgid = old_page_owner->tgid; + new_page_owner->free_pid = old_page_owner->free_pid; + new_page_owner->free_tgid = old_page_owner->free_tgid; new_page_owner->ts_nsec = old_page_owner->ts_nsec; new_page_owner->free_ts_nsec = old_page_owner->ts_nsec; strcpy(new_page_owner->comm, old_page_owner->comm); @@ -495,7 +501,8 @@ 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 stack trace:\n"); + pr_alert("page last free pid %d tgid %d stack trace:\n", + page_owner->free_pid, page_owner->free_tgid); stack_depot_print(handle); } |