[LU-9107] Update ZFS/SPL version to 0.6.5.9

Tue, 14 Mar 2017 06:10:00 +0000
Update ZFS/SPL version to latest maintenance release 0.6.5.9:
    Linux 4.10 compat: BIO flag changes zfsonlinux/zfs#5499
    Linux 4.9 compat: inode_change_ok() renamed setattr_prepare() zfsonlinux/zfs#5307
    Linux 4.9 compat: remove iops->{set,get,remove}xattr zfsonlinux/zfs#5307
    Linux 4.9 compat: iops->rename() wants flags zfsonlinux/zfs#5307
    Linux 4.9 compat: file_operations->aio_fsync removal zfsonlinux/zfs#5393
    Linux 4.9 compat: Remove dir inode operations from zpl_inode_operations zfsonlinux/zfs#5307
    Linux 4.9 compat: group_info changes zfsonlinux/spl#581
    Linux 4.8 compat: Fix RW_READ_HELD zfsonlinux/zfs#5233
    Linux 4.7 compat: Fix deadlock during lookup on case-insensitive zfsonlinux/zfs#5124 zfsonlinux/zfs#5141 zfsonlinux/zfs#5147 zfsonlinux/zfs#5148
    Linux 3.14 compat: assign inode->set_acl zfsonlinux/zfs#5371 zfsonlinux/zfs#5375
    Linux 2.6.32 compat: Reorder HAVE_BIO_RW_* checks zfsonlinux/zfs#4951 zfsonlinux/zfs#4959
    Use large stacks when available zfsonlinux/zfs#4059
    Use set_cached_acl() and forget_cached_acl() when possible zfsonlinux/zfs#5378
    Use kernel slab for vn_cache and vn_file_cache zfsonlinux/spl#599
    Fix batch free zpl_posix_acl_release zfsonlinux/zfs#5340 zfsonlinux/zfs#5353
    Fix zfsctl_snapshot_{,un}mount() issues zfsonlinux/zfs#5250
    Fix systemd services configutation through preset file zfsonlinux/zfs#5356
    Fix RLIMIT_FSIZE enforcement zfsonlinux/zfs#5587 zfsonlinux/zfs#5673 zfsonlinux/zfs#5720 zfsonlinux/zfs#5726
    Fix leak on zfs_sb_create() failure zfsonlinux/zfs#5490 zfsonlinux/zfs#5496
    Fix zpl_fallocate_common() creak leak zfsonlinux/zfs#5244 zfsonlinux/zfs#5330
    Fix fchange in zpl_ioctl_setflags() zfsonlinux/zfs#5486
    Fix wrong operator in xvattr.h zfsonlinux/zfs#5486
    Fix counting '@' in dataset namelen zfsonlinux/zfs#5432 zfsonlinux/zfs#5456
    Fix dmu_object_size_from_db() call under spinlock zfsonlinux/zfs#3858
    Fix lookup_bdev() on Ubuntu zfsonlinux/zfs#5336
    Fix receiving custom snapshot properties zfsonlinux/zfs#5189
    Fix bio merging w/noop scheduler zfsonlinux/zfs#5181
    Fix sync behavior for disk vdevs zfsonlinux/zfs#4858
    Fix uninitialized variable in avl_add() zfsonlinux/zfs#3609
    Fix tq_lock contention by making write taskq non-dynamic zfsonlinux/zfs#5236
    Fix atime handling (relatime, lazytime) zfsonlinux/zfs#4482
    Fix splat-cred.c cred usage zfsonlinux/spl#556
    Fix splat memleak zfsonlinux/spl#590
    Fix p0 initializer zfsonlinux/spl#576
    Fix aarch64 type warning zfsonlinux/spl#574
    Fix crgetgroups out-of-bound and misc cred fix zfsonlinux/spl#556
    Remove dead root pool import code zfsonlinux/zfs#4951
https://github.com/zfsonlinux/zfs/releases/tag/zfs-0.6.5.9
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[LU-9107] Update ZFS/SPL version to 0.6.5.9
