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X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 5CVKG+jAioigDnAKOBu2efCrjRISoH4XKotAJcd6iIe+60+7GwmRceE/EQxEamWXaiVwm/KzB/urD255uvLWan8LhY64RgALE1NTAODzvvg= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR10MB5053 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-18_02,2025-04-17_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 adultscore=0 phishscore=0 mlxscore=0 mlxlogscore=999 bulkscore=0 malwarescore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2502280000 definitions=main-2504180055 X-Proofpoint-GUID: nx85xo04atG03p9du6JpnmniCyineazr X-Proofpoint-ORIG-GUID: nx85xo04atG03p9du6JpnmniCyineazr Hi, On 4/18/25 8:12 AM, gaoxu wrote: [...] > diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c > index 447ac857e..c1bc51058 100644 > --- a/kernel/cgroup/cgroup.c > +++ b/kernel/cgroup/cgroup.c > @@ -84,13 +84,13 @@ > * css_set_lock protects task->cgroups pointer, the list of css_set > * objects, and the chain of tasks off each css_set. > * > - * These locks are exported if CONFIG_PROVE_RCU so that accessors in > - * cgroup.h can use them for lockdep annotations. > + * These locks are exported if CONFIG_PROVE_RCU or CONFIG_LOCKDEP so that > + * accessors in cgroup.h can use them for lockdep annotations. > */ Tejun has already merged the initial version of the patch without the updated description. You may want to send the description change as a separate patch, rebased on top of the cgroup/for-next branch. I've rephrased the description to clarify that lockdep annotations can occur even without CONFIG_PROVE_RCU. Feel free to use this version or modify it further: "Export locks for lockdep annotations. Use CONFIG_PROVE_RCU for accessors in cgroup.h, and CONFIG_LOCKDEP for accessors that do not require CONFIG_PROVE_RCU." -- Cheers, Kamalesh