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Bug #3251

file ctime not updated as documented on chmod(), link()

Added by tonyc about 1 month ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
VFS subsystem
Target version:
-
Start date:
10/26/2020
Due date:
% Done:

0%

Estimated time:

Description

The stat(2) man page claims:

st_ctim Time when file status was last changed (inode data
modification). Changed by the chmod(2), chown(2), link(2),
mknod(2), rename(2), unlink(2), utimes(2) and write(2)
system calls.

but neither link() nor chmod() update ctim.tv_sec:

$ pwd
/home/tony/dev/perl/git/dflybugs
$ cc -olink_ctime link_ctime.c
$ ./link_ctime
FAIL: chmod didn't update ctime
FAIL: link didn't update ctime
$ mount
serno/VB6e53d937-50b8dc58.s1d on / (hammer2, local)
devfs on /dev (devfs, nosymfollow, local)
/dev/serno/VB6e53d937-50b8dc58.s1a on /boot (ufs, local)
/build/usr.obj on /usr/obj (null)
/build/var.crash on /var/crash (null)
/build/var.cache on /var/cache (null)
/build/var.spool on /var/spool (null)
/build/var.log on /var/log (null)
/build/var.tmp on /var/tmp (null)
tmpfs on /tmp (tmpfs, local)
procfs on /proc (procfs, local)
tmpfs on /var/run/shm (tmpfs, local)
$ uname -a
DragonFly 5.8-RELEASE DragonFly v5.8.3-RELEASE #10: Thu Sep 24 19:19:45 EDT 2020 :/usr/obj/home/justin/release/5_8/sys/X86_64_GENERIC x86_64

link_ctime.c is attached.


Files

link_ctime.c (1.12 KB) link_ctime.c tonyc, 10/25/2020 06:00 PM

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