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: 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>
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@ -4,7 +4,7 @@ Shared Subtrees
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Contents:
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1) Overview
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2) Features
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3) smount command
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3) Setting mount states
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4) Use-case
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5) Detailed semantics
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6) Quiz
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@ -135,10 +135,15 @@ replicas continue to be exactly same.
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Binding a unbindable mount is a invalid operation.
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3) smount command
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3) Setting mount states
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Modern mount(8) command is aware of shared subtree features,
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so use it instead of the 'smount' command. [source code removed]
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The mount command (util-linux package) can be used to set mount
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states:
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mount --make-shared mountpoint
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mount --make-slave mountpoint
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mount --make-private mountpoint
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mount --make-unbindable mountpoint
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4) Use cases
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@ -209,7 +214,7 @@ replicas continue to be exactly same.
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mount --rbind / /view/v3
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mount --rbind / /view/v4
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and if /usr has a versioning filesystem mounted, than that
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and if /usr has a versioning filesystem mounted, then that
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mount appears at /view/v1/usr, /view/v2/usr, /view/v3/usr and
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/view/v4/usr too
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@ -249,7 +254,7 @@ replicas continue to be exactly same.
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For example:
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mount --make-shared /mnt
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mount --bin /mnt /tmp
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mount --bind /mnt /tmp
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The mount at /mnt and that at /tmp are both shared and belong
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to the same peer group. Anything mounted or unmounted under
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