svn commit: r207427 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs

[Martin Matuska]

Author: mm
Date: Fri Apr 30 07:48:29 2010
New Revision: 207427
URL: http://svn.freebsd.org/changeset/base/207427

Log:
  Fix improper pool write throughput calculation.
  
  OpenSolaris onnv revision:	9366:17553395a745
  
  PR:		kern/146108
  Approved by:	pjd, delphij (mentor)
  Obtained from:	OpenSolaris, Bug ID 6817339
  MFC after:	2 weeks

Modified:
  head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_pool.c

Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_pool.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_pool.c	Fri Apr 30 07:09:13 2010	(r207426)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_pool.c	Fri Apr 30 07:48:29 2010	(r207427)
@@ -300,6 +300,7 @@ dsl_pool_sync(dsl_pool_t *dp, uint64_t t
 	tx = dmu_tx_create_assigned(dp, txg);
 
 	dp->dp_read_overhead = 0;
+	start = gethrtime();
 	zio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
 	while (ds = txg_list_remove(&dp->dp_dirty_datasets, txg)) {
 		if (!list_link_active(&ds->ds_synced_link))
@@ -310,7 +311,6 @@ dsl_pool_sync(dsl_pool_t *dp, uint64_t t
 	}
 	DTRACE_PROBE(pool_sync__1setup);
 
-	start = gethrtime();
 	err = zio_wait(zio);
 	write_time = gethrtime() - start;
 	ASSERT(err == 0);