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charset="us-ascii" Content-ID: <968472721C74E24498DD1AAC8EBE0769@namprd04.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM8PR04MB8037.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 183f13d4-7665-4615-6203-08dae1b3f41d X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Dec 2022 11:27:03.6682 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: YoNCqE1x1tMMf+jdLsJ7LhVCJjLa6c5br4FNcEy6waC3eBhwQXfLyMgl0YRUVpUvuHx2w9HUCXuVGjxXb3c9E7j2VgpcPFynNBbaRdRbynw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR04MB7850 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Bjorn, FYI. This lockdep warning disappeared with kernel version v6.1. I bisected and found the commit 2d7f9f8c1815 ("kernfs: Improve kernfs_drain()= and always call on removal.") avoided the issue. This commit touches kernfs_dra= in() and __kernfs_remove(), and modifies the condition to lock kernfs_rwsem. I t= hink it explains why the lockdep disappeared. No longer need to work on this iss= ue :) --=20 Shin'ichiro Kawasaki=