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linux/include/linux/namei.h
Al Viro 4f757f3cbf make sure that mntns_install() doesn't end up with referral for root 
new flag: LOOKUP_DOWN.  If the starting point is overmounted, cross
into whatever's mounted on top, triggering referrals et.al.

Use that instead of follow_down_one() loop in mntns_install(), handle
errors properly.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-04-21 14:05:36 -04:00

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