diff options
| author | Johannes Thumshirn <johannes.thumshirn@wdc.com> | 2025-07-15 13:53:23 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-07-15 08:03:49 -0600 |
| commit | 4020d22f0d08ccfc0d00a254a90250ff07333607 (patch) | |
| tree | 0f02d410790bea21fe0383c661d9b400fb3ae91d | |
| parent | 4cc21a00762b5bd4dcd743317a56c2dba500fd89 (diff) | |
block: add tracepoint for blkdev_zone_mgmt
Add a tracepoint for blkdev_zone_mgmt to trace zone management commands
submitted by higher layers like file systems or user space.
An example output for this tracepoint is as follows:
mkfs.btrfs-203 [001] ..... 42.877493: blkdev_zone_mgmt: 8,0 ZRS 5242880 + 0
This example output shows a REQ_OP_ZONE_RESET operation submitted by
mkfs.btrfs.
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20250715115324.53308-5-johannes.thumshirn@wdc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/blk-zoned.c | 2 | ||||
| -rw-r--r-- | include/trace/events/block.h | 34 |
2 files changed, 36 insertions, 0 deletions
diff --git a/block/blk-zoned.c b/block/blk-zoned.c index 69af3caa3b1c..70003a4bc7db 100644 --- a/block/blk-zoned.c +++ b/block/blk-zoned.c @@ -179,6 +179,7 @@ static int blkdev_zone_reset_all(struct block_device *bdev) struct bio bio; bio_init(&bio, bdev, NULL, 0, REQ_OP_ZONE_RESET_ALL | REQ_SYNC); + trace_blkdev_zone_mgmt(&bio, 0); return submit_bio_wait(&bio); } @@ -242,6 +243,7 @@ int blkdev_zone_mgmt(struct block_device *bdev, enum req_op op, cond_resched(); } + trace_blkdev_zone_mgmt(bio, nr_sectors); ret = submit_bio_wait(bio); bio_put(bio); diff --git a/include/trace/events/block.h b/include/trace/events/block.h index 4855abdf9880..ff7698efdfde 100644 --- a/include/trace/events/block.h +++ b/include/trace/events/block.h @@ -599,6 +599,40 @@ TRACE_EVENT(block_rq_remap, (unsigned long long)__entry->old_sector, __entry->nr_bios) ); +/** + * blkdev_zone_mgmt - Execute a zone management operation on a range of zones + * @bio: The block IO operation sent down to the device + * @nr_sectors: The number of sectors affected by this operation + * + * Execute a zone management operation on a specified range of zones. This + * range is encoded in %nr_sectors, which has to be a multiple of the zone + * size. + */ +TRACE_EVENT(blkdev_zone_mgmt, + + TP_PROTO(struct bio *bio, sector_t nr_sectors), + + TP_ARGS(bio, nr_sectors), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( sector_t, sector ) + __field( sector_t, nr_sectors ) + __array( char, rwbs, RWBS_LEN) + ), + + TP_fast_assign( + __entry->dev = bio_dev(bio); + __entry->sector = bio->bi_iter.bi_sector; + __entry->nr_sectors = bio_sectors(bio); + blk_fill_rwbs(__entry->rwbs, bio->bi_opf); + ), + + TP_printk("%d,%d %s %llu + %llu", + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, + (unsigned long long)__entry->sector, + __entry->nr_sectors) +); #endif /* _TRACE_BLOCK_H */ /* This part must be outside protection */ |