linux-kernel - [PATCH 7/9] dm: zoned: Remove unused functions

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Message-ID: <20241003011554.266654-8-linux@treblig.org>
Date: Thu,  3 Oct 2024 02:15:52 +0100
From: linux@...blig.org
To: agk@...hat.com,
	snitzer@...nel.org,
	mpatocka@...hat.com,
	msakai@...hat.com
Cc: dm-devel@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH 7/9] dm: zoned: Remove unused functions

From: "Dr. David Alan Gilbert" <linux@...blig.org>

dmz_resume_metadata() is unused since it was added in commit
3b1a94c88b79 ("dm zoned: drive-managed zoned block device target")

dmz_zone_nr_blocks_shift is unused since it was added in commit
368205601375 ("dm zoned: move fields from struct dmz_dev to dmz_metadata")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 drivers/md/dm-zoned-metadata.c | 50 ----------------------------------
 drivers/md/dm-zoned.h          |  2 --
 2 files changed, 52 deletions(-)

diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index 8156881a31de..deff22ecccbb 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -245,11 +245,6 @@ unsigned int dmz_zone_nr_blocks(struct dmz_metadata *zmd)
 	return zmd->zone_nr_blocks;
 }
 
-unsigned int dmz_zone_nr_blocks_shift(struct dmz_metadata *zmd)
-{
-	return zmd->zone_nr_blocks_shift;
-}
-
 unsigned int dmz_zone_nr_sectors(struct dmz_metadata *zmd)
 {
 	return zmd->zone_nr_sectors;
@@ -3005,48 +3000,3 @@ void dmz_dtr_metadata(struct dmz_metadata *zmd)
 	dmz_cleanup_metadata(zmd);
 	kfree(zmd);
 }
-
-/*
- * Check zone information on resume.
- */
-int dmz_resume_metadata(struct dmz_metadata *zmd)
-{
-	struct dm_zone *zone;
-	sector_t wp_block;
-	unsigned int i;
-	int ret;
-
-	/* Check zones */
-	for (i = 0; i < zmd->nr_zones; i++) {
-		zone = dmz_get(zmd, i);
-		if (!zone) {
-			dmz_zmd_err(zmd, "Unable to get zone %u", i);
-			return -EIO;
-		}
-		wp_block = zone->wp_block;
-
-		ret = dmz_update_zone(zmd, zone);
-		if (ret) {
-			dmz_zmd_err(zmd, "Broken zone %u", i);
-			return ret;
-		}
-
-		if (dmz_is_offline(zone)) {
-			dmz_zmd_warn(zmd, "Zone %u is offline", i);
-			continue;
-		}
-
-		/* Check write pointer */
-		if (!dmz_is_seq(zone))
-			zone->wp_block = 0;
-		else if (zone->wp_block != wp_block) {
-			dmz_zmd_err(zmd, "Zone %u: Invalid wp (%llu / %llu)",
-				    i, (u64)zone->wp_block, (u64)wp_block);
-			zone->wp_block = wp_block;
-			dmz_invalidate_blocks(zmd, zone, zone->wp_block,
-					      zmd->zone_nr_blocks - zone->wp_block);
-		}
-	}
-
-	return 0;
-}
diff --git a/drivers/md/dm-zoned.h b/drivers/md/dm-zoned.h
index 265494d3f711..59ba0aaa9531 100644
--- a/drivers/md/dm-zoned.h
+++ b/drivers/md/dm-zoned.h
@@ -192,7 +192,6 @@ enum {
 int dmz_ctr_metadata(struct dmz_dev *dev, int num_dev,
 		     struct dmz_metadata **zmd, const char *devname);
 void dmz_dtr_metadata(struct dmz_metadata *zmd);
-int dmz_resume_metadata(struct dmz_metadata *zmd);
 
 void dmz_lock_map(struct dmz_metadata *zmd);
 void dmz_unlock_map(struct dmz_metadata *zmd);
@@ -230,7 +229,6 @@ unsigned int dmz_nr_unmap_rnd_zones(struct dmz_metadata *zmd, int idx);
 unsigned int dmz_nr_seq_zones(struct dmz_metadata *zmd, int idx);
 unsigned int dmz_nr_unmap_seq_zones(struct dmz_metadata *zmd, int idx);
 unsigned int dmz_zone_nr_blocks(struct dmz_metadata *zmd);
-unsigned int dmz_zone_nr_blocks_shift(struct dmz_metadata *zmd);
 unsigned int dmz_zone_nr_sectors(struct dmz_metadata *zmd);
 unsigned int dmz_zone_nr_sectors_shift(struct dmz_metadata *zmd);
 
-- 
2.46.2