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mount.2: ERRORS: add EPERM error for case where a mount is locked 

Refer the reader to mount_namespaces(7) for details.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2021-08-13 22:56:30 +02:00
parent b3987057c6
commit 74ed673c59
1 changed files with 15 additions and 0 deletions
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man2/mount.2
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@ -824,6 +824,21 @@ is out of range.
.B EPERM
The caller does not have the required privileges.
.TP
.B EPERM
An attempt was made to modify
.RB ( MS_REMOUNT )
the
.BR MS_RDONLY ,
.BR MS_NOSUID ,
or
.BR MS_NOEXEC
flag, or one of the "atime" flags
.RB ( MS_NOATIME ,
.BR MS_NODIRATIME ,
.BR MS_RELATIME )
of an existing mount, but the mount is locked; see
.BR mount_namespaces (7).
.TP
.B EROFS
Mounting a read-only filesystem was attempted without giving the
.B MS_RDONLY