Merge branch 'for-3.10/drivers' of git://git.kernel.dk/linux-block
[linux-3.10.git] / kernel / trace / blktrace.c
index 20d8a98..b8b8560 100644 (file)
@@ -72,7 +72,7 @@ static void trace_note(struct blk_trace *bt, pid_t pid, int action,
        bool blk_tracer = blk_tracer_enabled;
 
        if (blk_tracer) {
-               buffer = blk_tr->buffer;
+               buffer = blk_tr->trace_buffer.buffer;
                pc = preempt_count();
                event = trace_buffer_lock_reserve(buffer, TRACE_BLK,
                                                  sizeof(*t) + len,
@@ -218,7 +218,7 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
        if (blk_tracer) {
                tracing_record_cmdline(current);
 
-               buffer = blk_tr->buffer;
+               buffer = blk_tr->trace_buffer.buffer;
                pc = preempt_count();
                event = trace_buffer_lock_reserve(buffer, TRACE_BLK,
                                                  sizeof(*t) + pdu_len,
@@ -739,12 +739,6 @@ static void blk_add_trace_rq_complete(void *ignore,
                                      struct request_queue *q,
                                      struct request *rq)
 {
-       struct blk_trace *bt = q->blk_trace;
-
-       /* if control ever passes through here, it's a request based driver */
-       if (unlikely(bt && !bt->rq_based))
-               bt->rq_based = true;
-
        blk_add_trace_rq(q, rq, BLK_TA_COMPLETE);
 }
 
@@ -780,24 +774,10 @@ static void blk_add_trace_bio_bounce(void *ignore,
        blk_add_trace_bio(q, bio, BLK_TA_BOUNCE, 0);
 }
 
-static void blk_add_trace_bio_complete(void *ignore, struct bio *bio, int error)
+static void blk_add_trace_bio_complete(void *ignore,
+                                      struct request_queue *q, struct bio *bio,
+                                      int error)
 {
-       struct request_queue *q;
-       struct blk_trace *bt;
-
-       if (!bio->bi_bdev)
-               return;
-
-       q = bdev_get_queue(bio->bi_bdev);
-       bt = q->blk_trace;
-
-       /*
-        * Request based drivers will generate both rq and bio completions.
-        * Ignore bio ones.
-        */
-       if (likely(!bt) || bt->rq_based)
-               return;
-
        blk_add_trace_bio(q, bio, BLK_TA_COMPLETE, error);
 }