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Received: from willy by casper.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1ve3lW-0000000GCb2-101y; Fri, 09 Jan 2026 04:06:22 +0000 Date: Fri, 9 Jan 2026 04:06:22 +0000 From: Matthew Wilcox To: Jinchao Wang Cc: Andrew Morton , David Hildenbrand , Zi Yan , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , linux-mm@kvack.org, linux-kernel@vger.kernel.org, syzbot+2d9c96466c978346b55f@syzkaller.appspotmail.com Subject: Re: [PATCH] mm/migrate: fix hugetlbfs deadlock by respecting lock ordering Message-ID: References: <20260109034723.1342798-1-wangjinchao600@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260109034723.1342798-1-wangjinchao600@gmail.com> X-Rspam-User: X-Stat-Signature: z9ex68nqoeowiwo8ys63j3s8fskx1ewk X-Rspamd-Queue-Id: 237DD180006 X-Rspamd-Server: rspam04 X-HE-Tag: 1767931595-308484 X-HE-Meta: U2FsdGVkX1/DBXJOq3jDnEjcvQSAUGjIXmlpAleMA0xgOacRW92AuCVsyDZVpClswxKCvepolpNXHgcOB9cc69qUwypbmQGdZbLfDojXsQsv4ktoHbQwyzJc1AapNEaA5GWOmBh3sUcUDjCvbqloede4hTQy1xdEnOrkwssTHFU2Gq8xmA5Vcx5d28f9pHvMbBk51RvG6fqVd00vkjFEG7hjgk2lHsf2mUh68Ziur+OOXcLlvd5VJX19WV0VtWdFgkM3BukPjkkpuuU4HS29Pu2ehaU5y5if3QUdg2KibWnFiLHhh6aEt4yAXiYo+NHAaXCWxNFUSgxXHoqlwkYeDRGY6jYAR5IgP2otW/1SHhGaPyaZxPob5CH7zfGNRnvankH0JQD0P2hYC+C8Gk7Tyt70+JOG17TyEaMvlnKg+kkIJWKbwJM0byd2KEBKOYoIyN98Khl5Csm9MEUYWS+bLf6BbCKqcFoJABx3XUIshmUeROmNAIqb3dpNGCMmpzgWTK9b420JlluNaNXsGEBqY14XEr1h1qYEUICHQ6+6JcgkjBhW69OIqR1r78e1rKG+kUnIlrpWhlS4HUT85hby+NA1PzyPedG86YcU46xUO82YnSULPM2ndjvpn8hBEDwCir3evCX//W78CyBmU5Uv1xzNFzBYQllDiycZIbOEyTky7BXbdnUsajkmSEwAo44T1G1bKuFlhQGKnYWzoWgc5cS89AaUpq5YOXmRmvQrcWh+hJuG5fNnpQz/vRD3RJ3P4d9NuSusY4iCh0Hjhiqsnc8Qvbek9+vppP93M+KhR9ehCPvB/2WKANVH4cXsHoC9myGuasjRCQq0rvk5BGZ0A0C2e+6Bpmwkwam+xSwgMjpHE3CjTZVDjaP+ES1mTNmf3IQSyMHDG0YLihTmdeySGBT9dKE5wzLis/SlzGFcvD9zbRSXlclKGXWiIaCo6JEZWjwmg2eF787arsOk6Ft jCfHf9Ls 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Jan 09, 2026 at 11:47:16AM +0800, Jinchao Wang wrote: > Link: https://lore.kernel.org/all/68e9715a.050a0220.1186a4.000d.GAE@google.com/ > Link: https://lore.kernel.org/all/20260108123957.1123502-2-wangjinchao600@gmail.com > Reported-by: syzbot+2d9c96466c978346b55f@syzkaller.appspotmail.com > Suggested-by: Matthew Wilcox > Signed-off-by: Jinchao Wang ... and by "Suggested-by", you mean "completely written by", right? Or did you change it in some way?