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mount.2: Note the default treatment of ATIME flags during MS_REMOUNT 

The behavior changed in Linux 3.17.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2016-06-04 06:40:02 -05:00
parent f5da58a8f2
commit 49f6854626
1 changed files with 14 additions and 0 deletions
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@ -314,6 +314,20 @@ and, additionally, before kernel 2.4.10, the following could also be changed:
and
.BR MS_NOEXEC .
Since Linux 3.17,
.\" commit ffbc6f0ead47fa5a1dc9642b0331cb75c20a640e
if none of
.BR MS_NOATIME ,
.BR MS_NODIRATIME ,
.BR MS_RELATIME ,
or
.BR MS_STRICTATIME
is specified in
.IR mountflags ,
then the remount operation preserves the existing values of these flags
(rather than defaulting to
.BR MS_RELATIME ).
Since Linux 2.6.26, this flag can also be used to make
.\" See https://lwn.net/Articles/281157/
an existing bind mount read-only by specifying