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Daniel, Dao Quang Minh af9dab70f8 aufs: apply dirperm1 by default if supported
Automatically detect support for aufs `dirperm1` option and apply it.
`dirperm1` tells aufs to check the permission bits of the directory on the
topmost branch and ignore the permission bits on all lower branches.
It can be used to fix aufs' permission bug (i.e., upper layer having
broader mask than the lower layer).

More information about the bug can be found at https://github.com/docker/docker/issues/783
`dirperm1` man page is at: http://aufs.sourceforge.net/aufs3/man.html

Signed-off-by: Daniel, Dao Quang Minh <dqminh89@gmail.com>
(cherry picked from commit 281abd2c8a)

Docker-DCO-1.1-Signed-off-by: Jessie Frazelle <jess@docker.com> (github: jfrazelle)
2015-03-30 12:02:48 -07:00
..
2014-04-17 14:43:01 -07:00
2014-04-29 03:40:05 -07:00
2015-03-11 08:47:45 +08:00