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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1783993923; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7AeQBR8Jr8+xBr3Mb/Jq7ZoDTM1Fuhu9AGQLRB/s3dg=; b=fqfByGfYsNTihfrSrwhbwzZuoH3xxwVyI/5JThH+K2q/+S9OM5Ma7Q+cUJ5wJL3qsaVQ5z m3K3G/vVFDw8SXDZ7EcNv9hwp7FN+cJFsz4NqChgwMYjDyCzmownulJMQidYu37fUjyskH SO5zlTYhqwlwyEKSB19qlNCNHyvsrIA= From: Ye Liu To: Andrew Morton , Vlastimil Babka Cc: Ye Liu , Zi Yan , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 6/9] mm/page_owner: move free_ts_nsec output to free section in __dump_page_owner() Date: Tue, 14 Jul 2026 09:51:05 +0800 Message-ID: <20260714015117.78351-7-ye.liu@linux.dev> In-Reply-To: <20260714015117.78351-1-ye.liu@linux.dev> References: <20260714015117.78351-1-ye.liu@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 7A0E2100005 X-Stat-Signature: ftfezmns5jdkhi97wfmskuextchmpm1s X-HE-Tag: 1783993924-19956 X-HE-Meta: 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 X1AwJwtI 2R1cw8dWYg4RfpH2i277ZwnhEOwaIwP+Bbs7JfDY+XfseRvv7kaX0iO4NMeC3niCgdIeHpCBtnlvlVwWJqnVQ+WZwDSNWt+pv7f5enVkb/llqswwLqdXc9tROFNy58qadF6dktL/rTSbWcyqkUFN0Qfic2xaYqHVkqHPAr19vjGmbQHpM3UHGZDOGRxK0sqEZFAN4Bw7A2STIl7kpWm7/fHoliE1DIYb0cIfYuHtkZWpn/S7Vd7PvjPJmsXYJekspgve9EBP9SuOmRXJ7a3jwZBXqhVBmgekQwCyLlwvGsoBA7AE= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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. Signed-off-by: Ye Liu Acked-by: Zi Yan Reviewed-by: Vlastimil Babka (SUSE) --- mm/page_owner.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/mm/page_owner.c b/mm/page_owner.c index 7520718f63f1..84eb44459478 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -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); } -- 2.43.0