Hi Peter,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on 8ea9183db4ad8afbcb7089a77c23eaf965b0cacd]

url:    https://github.com/0day-ci/linux/commits/Peter-Oskolkov/sched-mm-x86-uaccess-implement-User-Managed-Concurrency-Groups/20211105-035945
base:   8ea9183db4ad8afbcb7089a77c23eaf965b0cacd
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/93e6110356346b226e3a41044aafe3d3b0906d10
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Peter-Oskolkov/sched-mm-x86-uaccess-implement-User-Managed-Concurrency-Groups/20211105-035945
        git checkout 93e6110356346b226e3a41044aafe3d3b0906d10
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All errors (new ones prefixed by >>):

   In file included from <command-line>:32:

quoted

./usr/include/linux/umcg.h:80:2: error: unknown type name 'u64'

      80 |  u64 state_ts;  /* r/w */
         |  ^~~

quoted

./usr/include/linux/umcg.h:91:2: error: unknown type name 'u32'

      91 |  u32 next_tid;  /* r   */
         |  ^~~
   ./usr/include/linux/umcg.h:93:2: error: unknown type name 'u32'
      93 |  u32 flags;   /* Reserved; must be zero. */
         |  ^~~
   ./usr/include/linux/umcg.h:101:2: error: unknown type name 'u64'
     101 |  u64 idle_workers_ptr; /* r/w */
         |  ^~~
   ./usr/include/linux/umcg.h:107:2: error: unknown type name 'u64'
     107 |  u64 idle_server_tid_ptr; /* r   */
         |  ^~~

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0-DAY CI Kernel Test Service, Intel Corporation
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