svn commit: r348596 - vendor-sys/illumos/dist/uts/common/fs/zfs vendor-sys/illumos/dist/uts/common/fs/zfs/sys vendor/illumos/dist/cmd/ztest

[Alexander Motin]

Author: mav
Date: Tue Jun  4 00:42:51 2019
New Revision: 348596
URL: https://svnweb.freebsd.org/changeset/base/348596

Log:
  9689 zfs range lock code should not be zpl-specific
  
  illumos/illumos-gate at 7931524763ef94dc16989451dddd206563d03bb4
  
  Reviewed by: Serapheim Dimitropoulos <serapheim.dimitro at delphix.com>
  Reviewed by: George Wilson <george.wilson at delphix.com>
  Approved by: Robert Mustacchi <rm at joyent.com>
  Author:     Matthew Ahrens <mahrens at delphix.com>

Modified:
  vendor/illumos/dist/cmd/ztest/ztest.c

Changes in other areas also in this revision:
Modified:
  vendor-sys/illumos/dist/uts/common/fs/zfs/sys/dmu.h
  vendor-sys/illumos/dist/uts/common/fs/zfs/sys/zfs_rlock.h
  vendor-sys/illumos/dist/uts/common/fs/zfs/sys/zfs_znode.h
  vendor-sys/illumos/dist/uts/common/fs/zfs/zfs_rlock.c
  vendor-sys/illumos/dist/uts/common/fs/zfs/zfs_vnops.c
  vendor-sys/illumos/dist/uts/common/fs/zfs/zfs_znode.c
  vendor-sys/illumos/dist/uts/common/fs/zfs/zvol.c

Modified: vendor/illumos/dist/cmd/ztest/ztest.c
==============================================================================
--- vendor/illumos/dist/cmd/ztest/ztest.c	Tue Jun  4 00:01:37 2019	(r348595)
+++ vendor/illumos/dist/cmd/ztest/ztest.c	Tue Jun  4 00:42:51 2019	(r348596)
@@ -237,7 +237,9 @@ typedef struct bufwad {
 } bufwad_t;
 
 /*
- * XXX -- fix zfs range locks to be generic so we can use them here.
+ * It would be better to use a rangelock_t per object.  Unfortunately
+ * the rangelock_t is not a drop-in replacement for rl_t, because we
+ * still need to map from object ID to rangelock_t.
  */
 typedef enum {
 	RL_READER,
@@ -1845,12 +1847,12 @@ static void
 ztest_get_done(zgd_t *zgd, int error)
 {
 	ztest_ds_t *zd = zgd->zgd_private;
-	uint64_t object = zgd->zgd_rl->rl_object;
+	uint64_t object = ((rl_t *)zgd->zgd_lr)->rl_object;
 
 	if (zgd->zgd_db)
 		dmu_buf_rele(zgd->zgd_db, zgd);
 
-	ztest_range_unlock(zgd->zgd_rl);
+	ztest_range_unlock((rl_t *)zgd->zgd_lr);
 	ztest_object_unlock(zd, object);
 
 	umem_free(zgd, sizeof (*zgd));
@@ -1900,8 +1902,8 @@ ztest_get_data(void *arg, lr_write_t *lr, char *buf, s
 	zgd->zgd_private = zd;
 
 	if (buf != NULL) {	/* immediate write */
-		zgd->zgd_rl = ztest_range_lock(zd, object, offset, size,
-		    RL_READER);
+		zgd->zgd_lr = (struct locked_range *)ztest_range_lock(zd,
+		    object, offset, size, RL_READER);
 
 		error = dmu_read(os, object, offset, size, buf,
 		    DMU_READ_NO_PREFETCH);
@@ -1915,8 +1917,8 @@ ztest_get_data(void *arg, lr_write_t *lr, char *buf, s
 			offset = 0;
 		}
 
-		zgd->zgd_rl = ztest_range_lock(zd, object, offset, size,
-		    RL_READER);
+		zgd->zgd_lr = (struct locked_range *)ztest_range_lock(zd,
+		    object, offset, size, RL_READER);
 
 		error = dmu_buf_hold(os, object, offset, zgd, &db,
 		    DMU_READ_NO_PREFETCH);