Commit 16c01b20 authored by Peng Tao's avatar Peng Tao Committed by Linus Torvalds
Browse files

doc/filesystems: more mount cleanups 



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: default avatarPeng Tao <bergwolf@gmail.com>
Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 0288b95b

Documentation/filesystems/sharedsubtree.txt

+11 −6
Original line number Diff line number Diff line
@@ -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

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