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MFC r296613: Make ZFS more picky to GEOM stripe sizes and offsets.
authormav <mav@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Mon, 21 Mar 2016 00:28:13 +0000 (00:28 +0000)
committermav <mav@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Mon, 21 Mar 2016 00:28:13 +0000 (00:28 +0000)
commitfa84fd1ff325ca2eb04d20c06a0e683af764314d
treeb0ea5a7ba52b3cd7d392d0bdf52471ccb8a9a96a
parent9c6c34a98fe7f11b81a9ee8c687e07c126335e74
MFC r296613: Make ZFS more picky to GEOM stripe sizes and offsets.

Use of misaligned or non-power-of-2 stripes is not really useful for ZFS,
since increased ashift won't help to avoid read-modify-write cycles, and
only reduce pool space efficiency and compression rates.

git-svn-id: svn://svn.freebsd.org/base/stable/10@297122 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c