6 files changed, 21 insertions, 12 deletions
diff --git a/module/zfs/arc.c b/module/zfs/arc.c
index 481c38189..157a28d4b 100644
--- a/module/zfs/arc.c
+++ b/module/zfs/arc.c
@@ -4214,7 +4214,7 @@ arc_kmem_reap_now(void)
  * using mutex_tryenter() from arc_reclaim_thread().
  */
 static void
-arc_reclaim_thread(void)
+arc_reclaim_thread(void *unused)
 {
 	fstrans_cookie_t	cookie = spl_fstrans_mark();
 	hrtime_t		growtime = 0;
@@ -7515,7 +7515,7 @@ l2arc_write_buffers(spa_t *spa, l2arc_dev_t *dev, uint64_t target_sz)
  * heart of the L2ARC.
  */
 static void
-l2arc_feed_thread(void)
+l2arc_feed_thread(void *unused)
 {
 	callb_cpr_t cpr;
 	l2arc_dev_t *dev;
diff --git a/module/zfs/dbuf.c b/module/zfs/dbuf.c
index dc2c00495..625e06701 100644
--- a/module/zfs/dbuf.c
+++ b/module/zfs/dbuf.c
@@ -531,7 +531,7 @@ dbuf_evict_one(void)
  * out of the cache it is destroyed and becomes eligible for arc eviction.
  */
 static void
-dbuf_evict_thread(void)
+dbuf_evict_thread(void *unused)
 {
 	callb_cpr_t cpr;
 
diff --git a/module/zfs/mmp.c b/module/zfs/mmp.c
index 00478a39f..a4771b677 100644
--- a/module/zfs/mmp.c
+++ b/module/zfs/mmp.c
@@ -123,7 +123,7 @@ uint_t zfs_multihost_import_intervals = MMP_DEFAULT_IMPORT_INTERVALS;
  */
 uint_t zfs_multihost_fail_intervals = MMP_DEFAULT_FAIL_INTERVALS;
 
-static void mmp_thread(spa_t *spa);
+static void mmp_thread(void *arg);
 
 void
 mmp_init(spa_t *spa)
@@ -364,8 +364,9 @@ mmp_write_uberblock(spa_t *spa)
 }
 
 static void
-mmp_thread(spa_t *spa)
+mmp_thread(void *arg)
 {
+	spa_t *spa = (spa_t *)arg;
 	mmp_thread_t *mmp = &spa->spa_mmp;
 	boolean_t last_spa_suspended = spa_suspended(spa);
 	boolean_t last_spa_multihost = spa_multihost(spa);
diff --git a/module/zfs/spa.c b/module/zfs/spa.c
index f1f1444f1..cb86c6200 100644
--- a/module/zfs/spa.c
+++ b/module/zfs/spa.c
@@ -1028,6 +1028,11 @@ spa_create_zio_taskqs(spa_t *spa)
 	}
 }
 
+/*
+ * Disabled until spa_thread() can be adapted for Linux.
+ */
+#undef HAVE_SPA_THREAD
+
 #if defined(_KERNEL) && defined(HAVE_SPA_THREAD)
 static void
 spa_thread(void *arg)
@@ -3415,7 +3420,7 @@ spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t *nvpolicy,
 	 * up calling spa_open() again.  The real fix is to figure out how to
 	 * avoid dsl_dir_open() calling this in the first place.
 	 */
-	if (mutex_owner(&spa_namespace_lock) != curthread) {
+	if (MUTEX_NOT_HELD(&spa_namespace_lock)) {
 		mutex_enter(&spa_namespace_lock);
 		locked = B_TRUE;
 	}
@@ -6068,8 +6073,9 @@ spa_async_autoexpand(spa_t *spa, vdev_t *vd)
 }
 
 static void
-spa_async_thread(spa_t *spa)
+spa_async_thread(void *arg)
 {
+	spa_t *spa = (spa_t *)arg;
 	int tasks, i;
 
 	ASSERT(spa->spa_sync_on);
diff --git a/module/zfs/txg.c b/module/zfs/txg.c
index 65bd7f93a..8b1ec9c05 100644
--- a/module/zfs/txg.c
+++ b/module/zfs/txg.c
@@ -108,8 +108,8 @@
  * now transition to the syncing state.
  */
 
-static void txg_sync_thread(dsl_pool_t *dp);
-static void txg_quiesce_thread(dsl_pool_t *dp);
+static void txg_sync_thread(void *dp);
+static void txg_quiesce_thread(void *dp);
 
 int zfs_txg_timeout = 5;	/* max seconds worth of delta per txg */
 
@@ -477,8 +477,9 @@ txg_wait_callbacks(dsl_pool_t *dp)
 }
 
 static void
-txg_sync_thread(dsl_pool_t *dp)
+txg_sync_thread(void *arg)
 {
+	dsl_pool_t *dp = (dsl_pool_t *)arg;
 	spa_t *spa = dp->dp_spa;
 	tx_state_t *tx = &dp->dp_tx;
 	callb_cpr_t cpr;
@@ -561,8 +562,9 @@ txg_sync_thread(dsl_pool_t *dp)
 }
 
 static void
-txg_quiesce_thread(dsl_pool_t *dp)
+txg_quiesce_thread(void *arg)
 {
+	dsl_pool_t *dp = (dsl_pool_t *)arg;
 	tx_state_t *tx = &dp->dp_tx;
 	callb_cpr_t cpr;
 
diff --git a/module/zfs/zfs_sa.c b/module/zfs/zfs_sa.c
index 13e99c058..08e881cc3 100644
--- a/module/zfs/zfs_sa.c
+++ b/module/zfs/zfs_sa.c
@@ -300,7 +300,7 @@ zfs_sa_upgrade(sa_handle_t *hdl, dmu_tx_t *tx)
 	 * Otherwise, we know we are doing the
 	 * sa_update() that caused us to enter this function.
 	 */
-	if (mutex_owner(&zp->z_lock) != curthread) {
+	if (MUTEX_NOT_HELD(&zp->z_lock)) {
 		if (mutex_tryenter(&zp->z_lock) == 0)
 			return;
 		else