mnt: Update detach_mounts to leave mounts connected

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Now that it is possible to lazily unmount an entire mount tree and
leave the individual mounts connected to each other add a new flag
UMOUNT_CONNECTED to umount_tree to force this behavior and use
this flag in detach_mounts.

This closes a bug where the deletion of a file or directory could
trigger an unmount and reveal data under a mount point.

Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

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Eric W. Biederman 2015-04-01 18:30:06 -05:00

parent f53e579751

commit e0c9c0afd2

1 changed files with 6 additions and 2 deletions

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8

fs/namespace.c

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