From 5e5e0768f29957805620872ff0474de116d9dc3b Mon Sep 17 00:00:00 2001 From: delphij Date: Mon, 20 Oct 2014 22:04:49 +0000 Subject: MFC r272511: MFV r272499: Illumos issue: 5174 add sdt probe for blocked read in dbuf_read() --- sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'sys/cddl') diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c index 9102322c..c9ea6c0 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c @@ -671,6 +671,8 @@ 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) -- cgit v1.1