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doc/filesystems: more mount cleanups

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Documentation/filesystems/sharedsubtree.txt needs updating because the
mount command in util-linux package is well aware of shared subtree
features now.  The patch also fixes two typos in sharedsubtree.txt.

Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Peng Tao 2009-09-23 15:56:13 -07:00 committed by Linus Torvalds
parent 0288b95b43
commit 16c01b20ae
1 changed files with 11 additions and 6 deletions
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17
Documentation/filesystems/sharedsubtree.txt
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@ -4,7 +4,7 @@ Shared Subtrees
Contents:
1) Overview
2) Features
3) smount command
3) Setting mount states
4) Use-case
5) Detailed semantics
6) Quiz
@ -135,10 +135,15 @@ replicas continue to be exactly same.
Binding a unbindable mount is a invalid operation.
3) smount command
3) Setting mount states
Modern mount(8) command is aware of shared subtree features,
so use it instead of the 'smount' command. [source code removed]
The mount command (util-linux package) can be used to set mount
states:
mount --make-shared mountpoint
mount --make-slave mountpoint
mount --make-private mountpoint
mount --make-unbindable mountpoint
4) Use cases
@ -209,7 +214,7 @@ replicas continue to be exactly same.
mount --rbind / /view/v3
mount --rbind / /view/v4
and if /usr has a versioning filesystem mounted, than that
and if /usr has a versioning filesystem mounted, then that
mount appears at /view/v1/usr, /view/v2/usr, /view/v3/usr and
/view/v4/usr too
@ -249,7 +254,7 @@ replicas continue to be exactly same.
For example:
mount --make-shared /mnt
mount --bin /mnt /tmp
mount --bind /mnt /tmp
The mount at /mnt and that at /tmp are both shared and belong
to the same peer group. Anything mounted or unmounted under