Hi, the major/minor value of statx(kernel samples/vfs/test-statx.c) does not match /usr/bin/stat. major/minor of statx result seems be truncated by something like old_decode_dev()? kernel:5.10.44 kernel-headers:5.10.44 test fs: vfat, xfs, btrfs btrfs output sample: [root@T640 vfs]# ./test-statx /ssd/ statx(/ssd/) = 0 results=1fff Size: 200 Blocks: 0 IO Block: 4096 directory Device: 00:31 Inode: 256 Links: 1 Access: (0755/drwxr-xr-x) Uid: 0 Gid: 0 Access: 2021-06-16 19:16:56.644344956+0800 Modify: 2021-05-06 16:14:33.676248229+0800 Change: 2021-05-06 16:14:33.676248229+0800 Birth: 2020-11-18 14:03:35.324915316+0800 Attributes: 0000000000002000 (........ ........ ........ ........ ........ ..-..... ..?-.... .---.-..) [root@T640 vfs]# stat /ssd/ File: ‘/ssd/’ Size: 200 Blocks: 0 IO Block: 4096 directory Device: 31h/49d Inode: 256 Links: 1 Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2021-06-16 19:16:56.644344956 +0800 Modify: 2021-05-06 16:14:33.676248229 +0800 Change: 2021-05-06 16:14:33.676248229 +0800 Birth: - vfat output sample: [root@T640 vfs]# ./test-statx /boot/efi/ statx(/boot/efi/) = 0 results=17ff Size: 4096 Blocks: 8 IO Block: 4096 directory Device: 08:01 Inode: 1 Links: 3 Access: (0700/drwx------) Uid: 0 Gid: 0 Access: 1970-01-01 08:00:00.000000000+0800 Modify: 1970-01-01 08:00:00.000000000+0800 Change: 1970-01-01 08:00:00.000000000+0800 Attributes: 0000000000002000 (........ ........ ........ ........ ........ ..-..... ..?-.... ........) [root@T640 vfs]# stat /boot/efi/ File: ‘/boot/efi/’ Size: 4096 Blocks: 8 IO Block: 4096 directory Device: 801h/2049d Inode: 1 Links: 3 Access: (0700/drwx------) Uid: ( 0/ root) Gid: ( 0/ root) Access: 1970-01-01 08:00:00.000000000 +0800 Modify: 1970-01-01 08:00:00.000000000 +0800 Change: 1970-01-01 08:00:00.000000000 +0800 Birth: - Best Regards Wang Yugui (wangyugui@xxxxxxxxxxxx) 2021/06/17
