[RFC PATCH 13/39] blktrace: update blk_add_trace_bio()
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STALE2049d
From: Chaitanya Kulkarni <hidden>
Date: 2021-02-25 07:06:39
Also in:
linux-fsdevel
Subsystem:
block layer, the rest, tracing · Maintainers:
Jens Axboe, Linus Torvalds, Steven Rostedt, Masami Hiramatsu
Signed-off-by: Chaitanya Kulkarni <redacted> --- kernel/trace/blktrace.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 07f71a052a0d..14658b2a3fc8 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c@@ -1247,20 +1247,31 @@ static void blk_add_trace_rq_complete(void *ignore, struct request *rq, * **/ static void blk_add_trace_bio(struct request_queue *q, struct bio *bio, - u32 what, int error) + u64 what, int error) { struct blk_trace *bt; + struct blk_trace_ext *bte; rcu_read_lock(); bt = rcu_dereference(q->blk_trace); - if (likely(!bt)) { + bte = rcu_dereference(q->blk_trace_ext); + if (likely(!bt) && likely(!bte)) { rcu_read_unlock(); return; } - __blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size, - bio_op(bio), bio->bi_opf, what, error, 0, NULL, - blk_trace_bio_get_cgid(q, bio)); + if (bt) { + __blk_add_trace(bt, bio->bi_iter.bi_sector, + bio->bi_iter.bi_size, bio_op(bio), + bio->bi_opf, (u32)what, error, 0, NULL, + blk_trace_bio_get_cgid(q, bio)); + } else if (bte) { + __blk_add_trace_ext(bte, bio->bi_iter.bi_sector, + bio->bi_iter.bi_size, bio_op(bio), + bio->bi_opf, what, error, 0, NULL, + blk_trace_bio_get_cgid(q, bio), + bio_prio(bio)); + } rcu_read_unlock(); }
--
2.22.1