On Mon, Jul 23, 2012 at 12:01 AM, Sean Silva [off-list ref] wrote:

Hi, I saw MS_SLAVE used in the source code of systemd, but I couldn't
find information about it in the manpage for mount(2).

The mount(1) manpage does point to
`Documentation/filesystems/sharedsubtree.txt` which describes it
(although doesn't explicitly mention MS_SLAVE).

After a bit of digging, it seems that MS_SLAVE is one of four related
flags which also include MS_SLAVE, MS_PRIVATE, and MS_UNBINDABLE which
are also missing.

Manpage version is 3.35 according to the colophon. On Ubuntu Precise.
Online versions seem to be missing a description for this flag as
well.

Yup. Unfortunately no one has documented these 4 flags so far.

Thanks,

Michael


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface"; http://man7.org/tlpi/
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