mnt: Improve the umount_tree flags

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commit e819f15210 upstream.

- Remove the unneeded declaration from pnode.h
- Mark umount_tree static as it has no callers outside of namespace.c
- Define an enumeration of umount_tree's flags.
- Pass umount_tree's flags in by name

This removes the magic numbers 0, 1 and 2 making the code a little
clearer and makes it possible for there to be lazy unmounts that don't
propagate.  Which is what __detach_mounts actually wants for example.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
[ luis: backported to 3.16:
  - dropped change to __detach_mounts() ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

...

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Eric W. Biederman 2014-12-24 07:20:01 -06:00 • committed by Luis Henriques

parent 25cd274a4e

commit e894d07144

2 changed files with 15 additions and 15 deletions

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29

fs/namespace.c

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1

fs/pnode.h

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