Import changes from OpenSolaris that provide

- better ACL caching and speedup of ACL permission checks
- faster handling of stat()
- lowered mutex contention in the read/writer lock (rrwlock)
- several related bugfixes

Detailed information (OpenSolaris onnv changesets and Bug IDs):

9749:105f407a2680
6802734	Support for Access Based Enumeration (not used on FreeBSD)
6844861	inconsistent xattr readdir behavior with too-small buffer

9866:ddc5f1d8eb4e
6848431	zfs with rstchown=0 or file_chown_self privilege allows user to "take" ownership

9981:b4907297e740
6775100	stat() performance on files on zfs should be improved
6827779	rrwlock is overly protective of its counters

10143:d2d432dfe597
6857433	memory leaks found at: zfs_acl_alloc/zfs_acl_node_alloc
6860318	truncate() on zfsroot succeeds when file has a component of its path set without access permission

10232:f37b85f7e03e
6865875	zfs sometimes incorrectly giving search access to a dir

10250:b179ceb34b62
6867395	zpool_upgrade_007_pos testcase panic'd with BAD TRAP: type=e (#pf Page fault)

10269:2788675568fd
6868276	zfs_rezget() can be hazardous when znode has a cached ACL

10295:f7a18a1e9610
6870564	panic in zfs_getsecattr

Approved by:	delphij (mentor)
Obtained from:	OpenSolaris (multiple Bug IDs)
MFC after:	2 weeks

0 files changed, 0 insertions, 0 deletions