K 10
svn:author
V 2
ae
K 8
svn:date
V 27
2017-06-13T10:52:31.170892Z
K 7
svn:log
V 262
Resurrect RTF_RNH_LOCKED flag and restore ability to call rtalloc1_fib()
with acquired RIB lock.

This fixes a possible panic due to trying to acquire RIB rlock when it is
already exclusive locked.

PR:		215963, 215122
MFC after:	1 week
Sponsored by:	Yandex LLC

END