From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
To: linux-btrace@vger.kernel.org
Subject: [RFC PATCH 23/38] blktrace: update blk_add_trace_bio_remap()
Date: Tue, 26 Jan 2021 23:33:45 +0000 [thread overview]
Message-ID: <20210126233400.31259-24-chaitanya.kulkarni@wdc.com> (raw)
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
kernel/trace/blktrace.c | 20 +++++++++++++++-----
1 file changed, 15 insertions(+), 5 deletions(-)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 5aed9b0d0c69..1e1948b6e7b1 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1516,11 +1516,13 @@ static void blk_add_trace_bio_remap(void *ignore, struct bio *bio, dev_t dev,
{
struct request_queue *q = bio->bi_disk->queue;
struct blk_trace *bt;
+ struct blk_trace_ext *bte;
struct blk_io_trace_remap r;
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;
}
@@ -1529,10 +1531,18 @@ static void blk_add_trace_bio_remap(void *ignore, struct bio *bio, dev_t dev,
r.device_to = cpu_to_be32(bio_dev(bio));
r.sector_from = cpu_to_be64(from);
- __blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size,
- bio_op(bio), bio->bi_opf, BLK_TA_REMAP,
- blk_status_to_errno(bio->bi_status),
- sizeof(r), &r, 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,
+ BLK_TA_REMAP, bio->bi_status, sizeof(r), &r,
+ 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, BLK_TA_REMAP_EXT, bio->bi_status,
+ sizeof(r), &r,
+ blk_trace_bio_get_cgid(q, bio), 0);
+ }
rcu_read_unlock();
}
--
2.22.1
reply other threads:[~2021-01-26 23:33 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210126233400.31259-24-chaitanya.kulkarni@wdc.com \
--to=chaitanya.kulkarni@wdc.com \
--cc=linux-btrace@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).