Re: [PATCH] mm: delay oom_reaper only for the process using robust-futex

[kernel test robot <lkp@intel.com>]

Hi,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]

url:    https://github.com/intel-lab-lkp/linux/commits/zhongjinji-honor-com/mm-delay-oom_reaper-only-for-the-process-using-robust-futex/20250731-183058
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20250731102904.8615-1-zhongjinji%40honor.com
patch subject: [PATCH] mm: delay oom_reaper only for the process using robust-futex
config: i386-buildonly-randconfig-002-20250801 (https://download.01.org/0day-ci/archive/20250801/202508010627.P8Xrr4xy-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250801/202508010627.P8Xrr4xy-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508010627.P8Xrr4xy-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   mm/oom_kill.c: In function 'exit_may_access_user':
>> mm/oom_kill.c:872:20: error: 'struct task_struct' has no member named 'robust_list'
     872 |         return task->robust_list || task->compat_robust_list;
         |                    ^~
>> mm/oom_kill.c:872:41: error: 'struct task_struct' has no member named 'compat_robust_list'
     872 |         return task->robust_list || task->compat_robust_list;
         |                                         ^~
>> mm/oom_kill.c:873:1: warning: control reaches end of non-void function [-Wreturn-type]
     873 | }
         | ^


vim +872 mm/oom_kill.c

   869	
   870	static inline bool exit_may_access_user(struct task_struct *task)
   871	{
 > 872		return task->robust_list || task->compat_robust_list;
 > 873	}
   874	

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