diff options
| author | Johannes Thumshirn <johannes.thumshirn@wdc.com> | 2025-10-22 13:41:13 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-10-22 11:14:05 -0600 |
| commit | 1c164fcc1b08e75f1cad1532718f09cddc0ddebe (patch) | |
| tree | 7df44389cee622a2430edeedbd0c99b7c19a79c1 /kernel | |
| parent | f9ee38bbf70fb20584625849a253c8652176fa66 (diff) | |
blktrace: expose ZONE APPEND completions to blktrace
Expose ZONE APPEND completions as a block trace completion action to
blktrace.
As tracing of zoned block commands needs the upper 32bit of the widened
64bit action, only add traces to blktrace if user-space has requested
version 2 of the blktrace protocol.
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/blktrace.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index fb5935885abc..c83577096607 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -978,6 +978,22 @@ static void blk_add_trace_rq_complete(void *ignore, struct request *rq, blk_trace_request_get_cgid(rq)); } +static void blk_add_trace_zone_update_request(void *ignore, struct request *rq) +{ + struct blk_trace *bt; + + rcu_read_lock(); + bt = rcu_dereference(rq->q->blk_trace); + if (likely(!bt) || bt->version < 2) { + rcu_read_unlock(); + return; + } + rcu_read_unlock(); + + blk_add_trace_rq(rq, 0, blk_rq_bytes(rq), BLK_TA_ZONE_APPEND, + blk_trace_request_get_cgid(rq)); +} + /** * blk_add_trace_bio - Add a trace for a bio oriented action * @q: queue the io is for @@ -1208,6 +1224,9 @@ static void blk_register_tracepoints(void) WARN_ON(ret); ret = register_trace_block_getrq(blk_add_trace_getrq, NULL); WARN_ON(ret); + ret = register_trace_blk_zone_append_update_request_bio( + blk_add_trace_zone_update_request, NULL); + WARN_ON(ret); ret = register_trace_block_plug(blk_add_trace_plug, NULL); WARN_ON(ret); ret = register_trace_block_unplug(blk_add_trace_unplug, NULL); @@ -1227,6 +1246,8 @@ static void blk_unregister_tracepoints(void) unregister_trace_block_split(blk_add_trace_split, NULL); unregister_trace_block_unplug(blk_add_trace_unplug, NULL); unregister_trace_block_plug(blk_add_trace_plug, NULL); + unregister_trace_blk_zone_append_update_request_bio( + blk_add_trace_zone_update_request, NULL); unregister_trace_block_getrq(blk_add_trace_getrq, NULL); unregister_trace_block_bio_queue(blk_add_trace_bio_queue, NULL); unregister_trace_block_bio_frontmerge(blk_add_trace_bio_frontmerge, NULL); |