9447 NFS unmount is slow

refs #3357

(cherry picked from commit 92034044e95e6f6e8fb6a3dddf68ddc2561c6870)

4827 nfs4: slow file locking
4837 NFSv4 client lock retry delay upper limit should be shorter

(cherry picked from commit 99ef4b75bc247bdd229cd0820fccabdb0602cf52)

5045 use atomic_{inc,dec}_* instead of atomic_add_*
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Robert Mustacchi <rm@joyent.com>

1659 Move warnings about nrnode calculation to system log
Reviewed by: Dan McDonald <danmcd@nexenta.com>
Reviewed by: Michael Tsymbalyuk <mtzaurus@gmail.com>
Reviewed by: Dan Kruchinin <dkruchinin@ac

1659 Move warnings about nrnode calculation to system log
Reviewed by: Dan McDonald <danmcd@nexenta.com>
Reviewed by: Michael Tsymbalyuk <mtzaurus@gmail.com>
Reviewed by: Dan Kruchinin <dkruchinin@acm.org>
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Gordon Ross <gwr@nexenta.com>

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6213799 VMODSORT support for NFS. AKA "close()/fsync() slow on clients with lots of memory and cached pages"

6912345 nfs4_active_data_reclaim() will panic when the exported filesystem does not support xattrs

6232737 Client should support NFS4ERR_MOVED and fs_locations
6232743 Server should support NFS4ERR_MOVED and fs_locations
6891289 client panick mutex_vector_tryenter with some stress testing

6897605 Deadlock in nfs4_active_reclaim() on r_lock if file and its XATTR are hashed in the same r4hashq_t

6636260 mirror mounts can unexpectedly return EBUSY

6847540 NFSv4 clients may not handle file operations correctly

6300710 recursive mutex_enter in nfs4rename_persistent_fh()
6579226 XXX comment in sv_find() can disappear

PSARC/2007/218 caller_context_t in all VOPs
PSARC/2007/227 VFS Feature Registration and ACL on Create
PSARC/2007/244 ZFS Case-insensitive support
PSARC/2007/315 Extensible Attribute Interfaces
PSARC/

PSARC/2007/218 caller_context_t in all VOPs
PSARC/2007/227 VFS Feature Registration and ACL on Create
PSARC/2007/244 ZFS Case-insensitive support
PSARC/2007/315 Extensible Attribute Interfaces
PSARC/2007/394 ls(1) new command line options '-/' and '-%': CIFS system attributes support
PSARC/2007/403 Modified Access Checks for CIFS
PSARC/2007/410 Add system attribute support to chmod(1)
PSARC/2007/432 CIFS system attributes support for cp(1), pack(1), unpack(1), compress(1) and uncompress(1)
PSARC/2007/444 Rescind SETTABLE Attribute
PSARC/2007/459 CIFS system attributes support for cpio(1), pax(1), tar(1)
PSARC/2007/546 Update utilities to match CIFS system attributes changes.
PSARC/2007/560 ZFS sharesmb property
4890717 want append-only files
6417428 Case-insensitive file system name lookup to support CIFS
6417435 DOS attributes and additional timestamps to support for CIFS
6417442 File system quarantined and modified attributes to support an integrated Anti-Virus service
6417453 FS boolean property for rejecting/allowing invalid UTF-8 sequences in file names
6473733 RFE: Need support for open-deny modes
6473755 RFE: Need ability to reconcile oplock and delegation conflicts
6494624 sharemgr needs to support CIFS shares better
6546705 All vnode operations need to pass caller_context_t
6546706 Need VOP_SETATTR/VOP_GETATTR to support new, optional attributes
6546893 Solaris system attribute support
6550962 ZFS ACL inheritance needs to be enhanced to support Automatic Inheritance
6553589 RFE: VFS Feature Registration facility
6553770 RFE: ZFS support for ACL-on-CREATE (PSARC 2007/227)
6565581 ls(1) should support file system attributes proposed in PSARC/2007/315
6566784 NTFS streams are not copied along with the files.
6576205 cp(1), pack(1) and compress(1) should support file system attributes proposed in PSARC/2007/315
6578875 RFE: kernel interfaces for nbmand need improvement
6578883 RFE: VOP_SHRLOCK needs additional access types
6578885 chmod(1) should support file system attributes proposed in PSARC/2007/315
6578886 RFE: disallow nbmand state to change on remount
6583349 ACL parser needs to support audit/alarm ACE types
6590347 tar(1) should support filesystem attributes proposed in PSARC/2007/315
6597357 *tar* xv@ doesn't show the hidden directory even though it is restored
6597360 *tar* should re-init xattr info if openat() fails during extraction of and extended attribute
6597368 *tar* cannot restore hard linked extended attributes
6597374 *tar* doesn't display "x " when hard linked attributes are restored
6597375 *tar* extended attribute header off by one
6614861 *cpio* incorrectly archives extended system attributes with -@
6614896 *pax* incorrectly archives extended system attributes with -@
6615225 *tar* incorrectly archives extended system attributes with -@
6617183 CIFS Service - PSARC 2006/715

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PSARC 2007/416 NFSv4 Mirror-mounts
PSARC 2007/563 Add _AT_TRIGGER to fstatat(2)
5035401 allow clients to cross server filesystem boundaries if the fs is visible
6613892 nftw(3C) has potential securit

PSARC 2007/416 NFSv4 Mirror-mounts
PSARC 2007/563 Add _AT_TRIGGER to fstatat(2)
5035401 allow clients to cross server filesystem boundaries if the fs is visible
6613892 nftw(3C) has potential security issues

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6424653 Deadlock caused by nfs4_readahead

PSARC 2005/474 Zones Upgrade (Ashanti and Zulu)
6328286 need scratch zone support for upgrade
6328296 need temporary NFS feature to support cross-zone traffic in miniroot environment (only)
6328310 z

PSARC 2005/474 Zones Upgrade (Ashanti and Zulu)
6328286 need scratch zone support for upgrade
6328296 need temporary NFS feature to support cross-zone traffic in miniroot environment (only)
6328310 zone_destroy shouldn't camp on the root vnode
6329667 zoneadm fails, but still exits with status zero

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6288337 Client goes loopy on volatile filehandles

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