diff options
| -rw-r--r-- | module/zfs/dbuf.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/module/zfs/dbuf.c b/module/zfs/dbuf.c index 7f75e131f..76a8a99ab 100644 --- a/module/zfs/dbuf.c +++ b/module/zfs/dbuf.c @@ -726,6 +726,8 @@ dbuf_read(dmu_buf_impl_t *db, zio_t *zio, uint32_t flags) db->db_state == DB_FILL) { ASSERT(db->db_state == DB_READ || (flags & DB_RF_HAVESTRUCT) == 0); + DTRACE_PROBE2(blocked__read, dmu_buf_impl_t *, + db, zio_t *, zio); cv_wait(&db->db_changed, &db->db_mtx); } if (db->db_state == DB_UNCACHED) |