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Remove BIO_ORDERED flag from BIO_FLUSH sent by ZFS.

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In all cases where ZFS sends BIO_FLUSH, it first waits for all related
writes to complete, so its BIO_FLUSH does not care about strict ordering.
Removal of one makes life much easier at least for NVMe driver, which
hardware has no concept of request ordering, relying completely on software.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
This commit is contained in:
mav 2019-01-30 17:39:44 +00:00
parent 87871ab1ce
commit d697c249e0
1 changed files with 0 additions and 1 deletions
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sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c
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@ -1097,7 +1097,6 @@ sendreq:
break;
case ZIO_TYPE_IOCTL:
bp->bio_cmd = BIO_FLUSH;
bp->bio_flags |= BIO_ORDERED;
bp->bio_data = NULL;
bp->bio_offset = cp->provider->mediasize;
bp->bio_length = 0;