From: Wang Yugui <wangyugui@e16-tech.com>
To: linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org,
dhowells@redhat.com
Subject: the major/minor value of statx(kernel samples/vfs/test-statx.c) does not match /usr/bin/stat
Date: Thu, 17 Jun 2021 18:12:56 +0800 [thread overview]
Message-ID: <20210617181256.63EB.409509F4@e16-tech.com> (raw)
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@e16-tech.com)
2021/06/17
next reply other threads:[~2021-06-17 10:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-17 10:12 Wang Yugui [this message]
2021-06-23 20:49 ` the major/minor value of statx(kernel samples/vfs/test-statx.c) does not match /usr/bin/stat David Sterba
2021-06-23 22:19 ` Wang Yugui
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