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authorEric W. Biederman <ebiederm@xmission.com>2014-10-08 01:22:52 +0200
committerEric W. Biederman <ebiederm@xmission.com>2014-12-02 17:46:50 +0100
commit8486a7882b5ba906992fd78bbfcefaae7fe285cc (patch)
tree5b6f8175e8cce90109c60032370281c37c580a34 /kernel/crash_dump.c
parentumount: Do not allow unmounting rootfs. (diff)
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mnt: Move the clear of MNT_LOCKED from copy_tree to it's callers.
Clear MNT_LOCKED in the callers of copy_tree except copy_mnt_ns, and collect_mounts. In copy_mnt_ns it is necessary to create an exact copy of a mount tree, so not clearing MNT_LOCKED is important. Similarly collect_mounts is used to take a snapshot of the mount tree for audit logging purposes and auditing using a faithful copy of the tree is important. This becomes particularly significant when we start setting MNT_LOCKED on rootfs to prevent it from being unmounted. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'kernel/crash_dump.c')
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