diff options
| author | delphij <delphij@FreeBSD.org> | 2014-10-20 22:04:49 +0000 |
|---|---|---|
| committer | delphij <delphij@FreeBSD.org> | 2014-10-20 22:04:49 +0000 |
| commit | 5e5e0768f29957805620872ff0474de116d9dc3b (patch) | |
| tree | bed4b26656d645b9bc5e21b9d6dfe94d5e0e289b /sys/cddl | |
| parent | cc4935ee8d2181a8175653328508096879963893 (diff) | |
| download | FreeBSD-src-5e5e0768f29957805620872ff0474de116d9dc3b.zip FreeBSD-src-5e5e0768f29957805620872ff0474de116d9dc3b.tar.gz | |
MFC r272511: MFV r272499:
Illumos issue:
5174 add sdt probe for blocked read in dbuf_read()
Diffstat (limited to 'sys/cddl')
| -rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c | 2 |
1 files changed, 2 insertions, 0 deletions
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) |
