K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2014-10-04T08:08:56.227740Z
K 7
svn:log
V 323
Plug capability races.

fp and appropriate capability lookups were not atomic, which could result in
improper capabilities being checked.

This could result either in protection bypass or in a spurious ENOTCAPABLE.

Make fp + capability check atomic with the help of sequence counters.

Reviewed by:	kib
MFC after:	3 weeks

END