From 766c3297d7e1584394d4af0cc8368e838124b023 Mon Sep 17 00:00:00 2001 From: Chaitanya Kulkarni Date: Wed, 25 Mar 2020 10:49:56 -0700 Subject: null_blk: add trace in null_blk_zoned.c With the help of previously added tracepoints we can now trace report-zones, zone-write and zone-mgmt ops in null_blk_zoned.c. Signed-off-by: Chaitanya Kulkarni Reviewed-by: Damien Le Moal Signed-off-by: Jens Axboe --- drivers/block/null_blk_zoned.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'drivers/block') diff --git a/drivers/block/null_blk_zoned.c b/drivers/block/null_blk_zoned.c index ed34785dd64b..673618d8222a 100644 --- a/drivers/block/null_blk_zoned.c +++ b/drivers/block/null_blk_zoned.c @@ -2,6 +2,9 @@ #include #include "null_blk.h" +#define CREATE_TRACE_POINTS +#include "null_blk_trace.h" + /* zone_size in MBs to sectors. */ #define ZONE_SIZE_SHIFT 11 @@ -80,6 +83,8 @@ int null_report_zones(struct gendisk *disk, sector_t sector, return 0; nr_zones = min(nr_zones, dev->nr_zones - first_zone); + trace_nullb_report_zones(nullb, nr_zones); + for (i = 0; i < nr_zones; i++) { /* * Stacked DM target drivers will remap the zone information by @@ -148,6 +153,8 @@ static blk_status_t null_zone_write(struct nullb_cmd *cmd, sector_t sector, /* Invalid zone condition */ return BLK_STS_IOERR; } + + trace_nullb_zone_op(cmd, zno, zone->cond); return BLK_STS_OK; } @@ -155,7 +162,8 @@ static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_opf op, sector_t sector) { struct nullb_device *dev = cmd->nq->dev; - struct blk_zone *zone = &dev->zones[null_zone_no(dev, sector)]; + unsigned int zone_no = null_zone_no(dev, sector); + struct blk_zone *zone = &dev->zones[zone_no]; size_t i; switch (op) { @@ -203,6 +211,8 @@ static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_opf op, default: return BLK_STS_NOTSUPP; } + + trace_nullb_zone_op(cmd, zone_no, zone->cond); return BLK_STS_OK; } -- cgit