Hi Liu, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on ext4/dev] [also build test WARNING on v4.17-rc4 next-20180507] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Liu-Bo/Ext4-bigalloc-fix-overreservation-on-quota-accounting/20180508-014241 base: https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) >> fs/ext4/extents_status.c:236:6: sparse: symbol '__ext4_es_find_range_type' was not declared. Should it be static? Please review and possibly fold the followup patch. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation