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Revert r269093 which introduced physical zio alignment transform

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Size of physical ZIOs must never be implicitly adjusted, it's
a responsibility of a caller to make sure that such a ZIO has proper offset
and size.

Discussed with:	delphij, gibbs
MFC after:	2 weeks
This commit is contained in:
avg 2014-11-17 14:16:02 +00:00
parent 8177391ac8
commit a55c441715
1 changed files with 1 additions and 2 deletions
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3
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c
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@ -2619,8 +2619,7 @@ zio_vdev_io_start(zio_t *zio)
align = 1ULL << vd->vdev_top->vdev_ashift;
if ((!(zio->io_flags & ZIO_FLAG_PHYSICAL) ||
(vd->vdev_top->vdev_physical_ashift > SPA_MINBLOCKSHIFT)) &&
if (!(zio->io_flags & ZIO_FLAG_PHYSICAL) &&
P2PHASE(zio->io_size, align) != 0) {
/* Transform logical writes to be a full physical block size. */
uint64_t asize = P2ROUNDUP(zio->io_size, align);