null_blk: add trace in null_blk_zoned.c (766c3297) · Commits · 戴 / test

drivers/block/null_blk_zoned.c

+11 −1

Original line number	Diff line number	Diff line
		@@ -2,6 +2,9 @@
		#include <linux/vmalloc.h>
		#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;
		}