utime and related calls always change the ctime. It is worth making this explicit. This is clear from the code (vfs_utimes() in fs/utimes.c always sets ATTR_CTIME) and is documented in https://pubs.opengroup.org/onlinepubs/007904875/functions/utimes.html Signed-off-by: NeilBrown <neilb@xxxxxxx> --- man2/utime.2 | 2 ++ man2/utimensat.2 | 3 +++ 2 files changed, 5 insertions(+) diff --git a/man2/utime.2 b/man2/utime.2 index 5338723574e2..7557d680afa3 100644 --- a/man2/utime.2 +++ b/man2/utime.2 @@ -39,6 +39,8 @@ to the fields of .I times respectively. +The status change time (ctime) will be set to the current time, even if the +other time stamps don't actually change. .PP If .I times diff --git a/man2/utimensat.2 b/man2/utimensat.2 index 11cf3ee24129..2abf8e196ee1 100644 --- a/man2/utimensat.2 +++ b/man2/utimensat.2 @@ -101,6 +101,9 @@ If .I times is NULL, then both timestamps are set to the current time. .\" +.PP +The status change time (ctime) will be set to the current time, even if the +other time stamps don't actually change. .SS Permissions requirements To set both file timestamps to the current time (i.e., .I times -- 2.37.1
