Hi huijin.park, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on block/for-next] [also build test WARNING on next-20180727] [cannot apply to v4.18-rc7] [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/Huijin-Park/genhd-incrase-size-of-disk-stat-counters/20180731-173548 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next config: um-x86_64_defconfig (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=um SUBARCH=x86_64 All warnings (new ones prefixed by >>): fs/ext4/sysfs.c: In function 'session_write_kbytes_show': >> fs/ext4/sysfs.c:58:37: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'long long unsigned int' [-Wformat=] return snprintf(buf, PAGE_SIZE, "%lu\n", ~~^ %llu (part_stat_read(sb->s_bdev->bd_part, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sectors[STAT_WRITE]) - ~~~~~~~~~~~~~~~~~~~~~~ sbi->s_sectors_written_start) >> 1); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +58 fs/ext4/sysfs.c b5799018 Theodore Ts'o 2015-09-23 51 6ca06829 Tyson Nottingham 2018-03-30 52 static ssize_t session_write_kbytes_show(struct ext4_sb_info *sbi, char *buf) b5799018 Theodore Ts'o 2015-09-23 53 { b5799018 Theodore Ts'o 2015-09-23 54 struct super_block *sb = sbi->s_buddy_cache->i_sb; b5799018 Theodore Ts'o 2015-09-23 55 b5799018 Theodore Ts'o 2015-09-23 56 if (!sb->s_bdev->bd_part) b5799018 Theodore Ts'o 2015-09-23 57 return snprintf(buf, PAGE_SIZE, "0\n"); b5799018 Theodore Ts'o 2015-09-23 @58 return snprintf(buf, PAGE_SIZE, "%lu\n", dbae2c55 Michael Callahan 2018-07-18 59 (part_stat_read(sb->s_bdev->bd_part, dbae2c55 Michael Callahan 2018-07-18 60 sectors[STAT_WRITE]) - b5799018 Theodore Ts'o 2015-09-23 61 sbi->s_sectors_written_start) >> 1); b5799018 Theodore Ts'o 2015-09-23 62 } b5799018 Theodore Ts'o 2015-09-23 63 :::::: The code at line 58 was first introduced by commit :::::: b5799018827e67867fda77c3cde10fc080606fe2 ext4: move sysfs code from super.c to fs/ext4/sysfs.c :::::: TO: Theodore Ts'o <tytso@xxxxxxx> :::::: CC: Theodore Ts'o <tytso@xxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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