diff options
Diffstat (limited to 'mm/page_owner.c')
| -rw-r--r-- | mm/page_owner.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/mm/page_owner.c b/mm/page_owner.c index d56afa9c792e..fb3a05fdebdb 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -31,6 +31,7 @@ struct page_owner { u64 free_ts_nsec; char comm[TASK_COMM_LEN]; pid_t pid; + pid_t tgid; }; static bool page_owner_enabled = false; @@ -165,6 +166,7 @@ static inline void __set_page_owner_handle(struct page_ext *page_ext, page_owner->gfp_mask = gfp_mask; page_owner->last_migrate_reason = -1; page_owner->pid = current->pid; + page_owner->tgid = current->tgid; page_owner->ts_nsec = local_clock(); strlcpy(page_owner->comm, current->comm, sizeof(page_owner->comm)); @@ -233,6 +235,7 @@ void __folio_copy_owner(struct folio *newfolio, struct folio *old) old_page_owner->last_migrate_reason; 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->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); @@ -383,11 +386,11 @@ 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 (%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, free_ts %llu ns\n", page_owner->order, page_owner->gfp_mask, &page_owner->gfp_mask, page_owner->pid, - page_owner->comm, page_owner->ts_nsec, - page_owner->free_ts_nsec); + page_owner->tgid, page_owner->comm, + page_owner->ts_nsec, page_owner->free_ts_nsec); /* Print information relevant to grouping pages by mobility */ pageblock_mt = get_pageblock_migratetype(page); @@ -454,10 +457,10 @@ 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 (%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, free_ts %llu\n", page_owner->order, migratetype_names[mt], gfp_mask, &gfp_mask, - page_owner->pid, page_owner->comm, page_owner->ts_nsec, - page_owner->free_ts_nsec); + page_owner->pid, page_owner->tgid, page_owner->comm, + page_owner->ts_nsec, page_owner->free_ts_nsec); handle = READ_ONCE(page_owner->handle); if (!handle) |