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-rw-r--r--sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c
index 5aa0718..2f8b7d6 100644
--- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c
@@ -923,9 +923,17 @@ spa_taskqs_init(spa_t *spa, zio_type_t t, zio_taskq_type_t q)
* The write issue taskq can be extremely CPU
* intensive. Run it at slightly lower priority
* than the other taskqs.
+ * FreeBSD notes:
+ * - numerically higher priorities are lower priorities;
+ * - if priorities divided by four (RQ_PPQ) are equal
+ * then a difference between them is insignificant.
*/
if (t == ZIO_TYPE_WRITE && q == ZIO_TASKQ_ISSUE)
- pri++;
+#ifdef illumos
+ pri--;
+#else
+ pri += 4;
+#endif
tq = taskq_create_proc(name, value, pri, 50,
INT_MAX, spa->spa_proc, flags);
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