Hi Qu, Thank you for the patch! Yet something to improve: [auto build test ERROR on v5.6-rc1] [also build test ERROR on next-20200213] [cannot apply to btrfs/next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Qu-Wenruo/Introduce-per-profile-available-space-array-to-avoid-over-confident-can_overcommit/20200213-093844 base: bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9 config: i386-allyesconfig (attached as .config) compiler: gcc-7 (Debian 7.5.0-4) 7.5.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): ld: fs/btrfs/volumes.o: in function `calc_per_profile_avail': >> volumes.c:(.text+0x2603): undefined reference to `__udivdi3' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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