[dm-devel] [PATCH 09/11] dm-zoned: add metadata logging functions
Hannes Reinecke
hare at suse.de
Thu Apr 9 06:45:25 UTC 2020
Use the metadata label for logging and not the underlying
device.
Signed-off-by: Hannes Reinecke <hare at suse.de>
Reviewed-by: Damien Le Moal <damien.lemoal at wdc.com>
---
drivers/md/dm-zoned-metadata.c | 95 ++++++++++++++++++++--------------
1 file changed, 56 insertions(+), 39 deletions(-)
diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index 34dc5f3abf09..211dee442a01 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -194,6 +194,17 @@ struct dmz_metadata {
wait_queue_head_t free_wq;
};
+#define dmz_zmd_info(zmd, format, args...) \
+ DMINFO("(%s): " format, (zmd)->devname, ## args)
+
+#define dmz_zmd_err(zmd, format, args...) \
+ DMERR("(%s): " format, (zmd)->devname, ## args)
+
+#define dmz_zmd_warn(zmd, format, args...) \
+ DMWARN("(%s): " format, (zmd)->devname, ## args)
+
+#define dmz_zmd_debug(zmd, format, args...) \
+ DMDEBUG("(%s): " format, (zmd)->devname, ## args)
/*
* Various accessors
*/
@@ -1093,7 +1104,7 @@ static int dmz_load_sb(struct dmz_metadata *zmd)
int ret;
if (!zmd->sb[0].zone) {
- dmz_dev_err(zmd->dev, "Primary super block zone not set");
+ dmz_zmd_err(zmd, "Primary super block zone not set");
return -ENXIO;
}
@@ -1130,7 +1141,7 @@ static int dmz_load_sb(struct dmz_metadata *zmd)
/* Use highest generation sb first */
if (!sb_good[0] && !sb_good[1]) {
- dmz_dev_err(zmd->dev, "No valid super block found");
+ dmz_zmd_err(zmd, "No valid super block found");
return -EIO;
}
@@ -1243,7 +1254,7 @@ static void dmz_drop_zones(struct dmz_metadata *zmd)
*/
static int dmz_init_zones(struct dmz_metadata *zmd)
{
- struct dmz_dev *dev = zmd->dev;
+ struct dmz_dev *dev = &zmd->dev[0];
int ret;
/* Init */
@@ -1263,8 +1274,8 @@ static int dmz_init_zones(struct dmz_metadata *zmd)
if (!zmd->zones)
return -ENOMEM;
- dmz_dev_info(dev, "Using %zu B for zone information",
- sizeof(struct dm_zone) * zmd->nr_zones);
+ DMINFO("(%s): Using %zu B for zone information",
+ zmd->devname, sizeof(struct dm_zone) * zmd->nr_zones);
/*
* Get zone information and initialize zone descriptors. At the same
@@ -1407,7 +1418,6 @@ static void dmz_get_zone_weight(struct dmz_metadata *zmd, struct dm_zone *zone);
*/
static int dmz_load_mapping(struct dmz_metadata *zmd)
{
- struct dmz_dev *dev = zmd->dev;
struct dm_zone *dzone, *bzone;
struct dmz_mblock *dmap_mblk = NULL;
struct dmz_map *dmap;
@@ -1440,7 +1450,7 @@ static int dmz_load_mapping(struct dmz_metadata *zmd)
goto next;
if (dzone_id >= zmd->nr_zones) {
- dmz_dev_err(dev, "Chunk %u mapping: invalid data zone ID %u",
+ dmz_zmd_err(zmd, "Chunk %u mapping: invalid data zone ID %u",
chunk, dzone_id);
return -EIO;
}
@@ -1461,14 +1471,14 @@ static int dmz_load_mapping(struct dmz_metadata *zmd)
goto next;
if (bzone_id >= zmd->nr_zones) {
- dmz_dev_err(dev, "Chunk %u mapping: invalid buffer zone ID %u",
+ dmz_zmd_err(zmd, "Chunk %u mapping: invalid buffer zone ID %u",
chunk, bzone_id);
return -EIO;
}
bzone = dmz_get(zmd, bzone_id);
if (!dmz_is_rnd(bzone)) {
- dmz_dev_err(dev, "Chunk %u mapping: invalid buffer zone %u",
+ dmz_zmd_err(zmd, "Chunk %u mapping: invalid buffer zone %u",
chunk, bzone_id);
return -EIO;
}
@@ -1888,7 +1898,7 @@ struct dm_zone *dmz_alloc_zone(struct dmz_metadata *zmd, unsigned long flags)
atomic_dec(&zmd->unmap_nr_seq);
if (dmz_is_offline(zone)) {
- dmz_dev_warn(zmd->dev, "Zone %u is offline", zone->id);
+ dmz_zmd_warn(zmd, "Zone %u is offline", zone->id);
zone = NULL;
goto again;
}
@@ -2099,7 +2109,7 @@ int dmz_validate_blocks(struct dmz_metadata *zmd, struct dm_zone *zone,
struct dmz_mblock *mblk;
unsigned int n = 0;
- dmz_dev_debug(zmd->dev, "=> VALIDATE zone %u, block %llu, %u blocks",
+ dmz_zmd_debug(zmd, "=> VALIDATE zone %u, block %llu, %u blocks",
zone->id, (unsigned long long)chunk_block,
nr_blocks);
@@ -2129,7 +2139,7 @@ int dmz_validate_blocks(struct dmz_metadata *zmd, struct dm_zone *zone,
if (likely(zone->weight + n <= zone_nr_blocks))
zone->weight += n;
else {
- dmz_dev_warn(zmd->dev, "Zone %u: weight %u should be <= %u",
+ dmz_zmd_warn(zmd, "Zone %u: weight %u should be <= %u",
zone->id, zone->weight,
zone_nr_blocks - n);
zone->weight = zone_nr_blocks;
@@ -2179,7 +2189,7 @@ int dmz_invalidate_blocks(struct dmz_metadata *zmd, struct dm_zone *zone,
struct dmz_mblock *mblk;
unsigned int n = 0;
- dmz_dev_debug(zmd->dev, "=> INVALIDATE zone %u, block %llu, %u blocks",
+ dmz_zmd_debug(zmd, "=> INVALIDATE zone %u, block %llu, %u blocks",
zone->id, (u64)chunk_block, nr_blocks);
WARN_ON(chunk_block + nr_blocks > zmd->zone_nr_blocks);
@@ -2209,7 +2219,7 @@ int dmz_invalidate_blocks(struct dmz_metadata *zmd, struct dm_zone *zone,
if (zone->weight >= n)
zone->weight -= n;
else {
- dmz_dev_warn(zmd->dev, "Zone %u: weight %u should be >= %u",
+ dmz_zmd_warn(zmd, "Zone %u: weight %u should be >= %u",
zone->id, zone->weight, n);
zone->weight = 0;
}
@@ -2419,7 +2429,7 @@ static void dmz_cleanup_metadata(struct dmz_metadata *zmd)
while (!list_empty(&zmd->mblk_dirty_list)) {
mblk = list_first_entry(&zmd->mblk_dirty_list,
struct dmz_mblock, link);
- dmz_dev_warn(zmd->dev, "mblock %llu still in dirty list (ref %u)",
+ dmz_zmd_warn(zmd, "mblock %llu still in dirty list (ref %u)",
(u64)mblk->no, mblk->ref);
list_del_init(&mblk->link);
rb_erase(&mblk->node, &zmd->mblk_rbtree);
@@ -2437,7 +2447,7 @@ static void dmz_cleanup_metadata(struct dmz_metadata *zmd)
/* Sanity checks: the mblock rbtree should now be empty */
root = &zmd->mblk_rbtree;
rbtree_postorder_for_each_entry_safe(mblk, next, root, node) {
- dmz_dev_warn(zmd->dev, "mblock %llu ref %u still in rbtree",
+ dmz_zmd_warn(zmd, "mblock %llu ref %u still in rbtree",
(u64)mblk->no, mblk->ref);
mblk->ref = 0;
dmz_free_mblock(zmd, mblk);
@@ -2450,6 +2460,18 @@ static void dmz_cleanup_metadata(struct dmz_metadata *zmd)
mutex_destroy(&zmd->map_lock);
}
+void dmz_print_dev(struct dmz_metadata *zmd, int num)
+{
+ struct dmz_dev *dev = &zmd->dev[num];
+
+ dmz_dev_info(dev, "Host-%s zoned block device",
+ bdev_zoned_model(dev->bdev) == BLK_ZONED_HA ?
+ "aware" : "managed");
+ dmz_dev_info(dev, " %llu 512-byte logical sectors",
+ (u64)dev->capacity);
+ dmz_dev_info(dev, " %u zones of %llu 512-byte logical sectors",
+ dev->nr_zones, (u64)zmd->zone_nr_sectors);
+}
/*
* Initialize the zoned metadata.
*/
@@ -2526,34 +2548,31 @@ int dmz_ctr_metadata(struct dmz_dev *dev, struct dmz_metadata **metadata,
/* Metadata cache shrinker */
ret = register_shrinker(&zmd->mblk_shrinker);
if (ret) {
- dmz_dev_err(dev, "Register metadata cache shrinker failed");
+ dmz_zmd_err(zmd, "Register metadata cache shrinker failed");
goto err;
}
- dmz_dev_info(dev, "Host-%s zoned block device",
- bdev_zoned_model(dev->bdev) == BLK_ZONED_HA ?
- "aware" : "managed");
- dmz_dev_info(dev, " %llu 512-byte logical sectors",
- (u64)dev->capacity);
- dmz_dev_info(dev, " %u zones of %llu 512-byte logical sectors",
+ dmz_zmd_info(zmd, "DM-Zoned metadata version %d", DMZ_META_VER);
+ dmz_print_dev(zmd, 0);
+
+ dmz_zmd_info(zmd, " %u zones of %llu 512-byte logical sectors",
zmd->nr_zones, (u64)zmd->zone_nr_sectors);
- dmz_dev_info(dev, " %u metadata zones",
+ dmz_zmd_info(zmd, " %u metadata zones",
zmd->nr_meta_zones * 2);
- dmz_dev_info(dev, " %u data zones for %u chunks",
+ dmz_zmd_info(zmd, " %u data zones for %u chunks",
zmd->nr_data_zones, zmd->nr_chunks);
- dmz_dev_info(dev, " %u random zones (%u unmapped)",
+ dmz_zmd_info(zmd, " %u random zones (%u unmapped)",
zmd->nr_rnd, atomic_read(&zmd->unmap_nr_rnd));
- dmz_dev_info(dev, " %u sequential zones (%u unmapped)",
+ dmz_zmd_info(zmd, " %u sequential zones (%u unmapped)",
zmd->nr_seq, atomic_read(&zmd->unmap_nr_seq));
- dmz_dev_info(dev, " %u reserved sequential data zones",
+ dmz_zmd_info(zmd, " %u reserved sequential data zones",
zmd->nr_reserved_seq);
-
- dmz_dev_debug(dev, "Format:");
- dmz_dev_debug(dev, "%u metadata blocks per set (%u max cache)",
+ dmz_zmd_debug(zmd, "Format:");
+ dmz_zmd_debug(zmd, "%u metadata blocks per set (%u max cache)",
zmd->nr_meta_blocks, zmd->max_nr_mblks);
- dmz_dev_debug(dev, " %u data zone mapping blocks",
+ dmz_zmd_debug(zmd, " %u data zone mapping blocks",
zmd->nr_map_blocks);
- dmz_dev_debug(dev, " %u bitmap blocks",
+ dmz_zmd_debug(zmd, " %u bitmap blocks",
zmd->nr_bitmap_blocks);
*metadata = zmd;
@@ -2582,7 +2601,6 @@ void dmz_dtr_metadata(struct dmz_metadata *zmd)
*/
int dmz_resume_metadata(struct dmz_metadata *zmd)
{
- struct dmz_dev *dev = zmd->dev;
struct dm_zone *zone;
sector_t wp_block;
unsigned int i;
@@ -2592,20 +2610,19 @@ int dmz_resume_metadata(struct dmz_metadata *zmd)
for (i = 0; i < zmd->nr_zones; i++) {
zone = dmz_get(zmd, i);
if (!zone) {
- dmz_dev_err(dev, "Unable to get zone %u", i);
+ 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_dev_err(dev, "Broken zone %u", i);
+ dmz_zmd_err(zmd, "Broken zone %u", i);
return ret;
}
if (dmz_is_offline(zone)) {
- dmz_dev_warn(dev, "Zone %u is offline", i);
+ dmz_zmd_warn(zmd, "Zone %u is offline", i);
continue;
}
@@ -2613,7 +2630,7 @@ int dmz_resume_metadata(struct dmz_metadata *zmd)
if (!dmz_is_seq(zone))
zone->wp_block = 0;
else if (zone->wp_block != wp_block) {
- dmz_dev_err(dev, "Zone %u: Invalid wp (%llu / %llu)",
+ 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,
--
2.25.0
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