[dm-devel] [PATCH 2/2] dm: stop using bdevname
Christoph Hellwig
hch at lst.de
Tue Mar 1 08:38:15 UTC 2022
Just use the %pg format specifier instead.
Signed-off-by: Christoph Hellwig <hch at lst.de>
---
drivers/md/dm-cache-target.c | 10 ++++------
drivers/md/dm-clone-target.c | 10 ++++------
drivers/md/dm-mpath.c | 6 ++----
drivers/md/dm-table.c | 30 ++++++++++++++----------------
drivers/md/dm-thin.c | 8 +++-----
5 files changed, 27 insertions(+), 37 deletions(-)
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 89fdfb49d564e..d46c06f2ffccf 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -2015,7 +2015,6 @@ static int parse_metadata_dev(struct cache_args *ca, struct dm_arg_set *as,
{
int r;
sector_t metadata_dev_size;
- char b[BDEVNAME_SIZE];
if (!at_least_one_arg(as, error))
return -EINVAL;
@@ -2029,8 +2028,8 @@ static int parse_metadata_dev(struct cache_args *ca, struct dm_arg_set *as,
metadata_dev_size = get_dev_size(ca->metadata_dev);
if (metadata_dev_size > DM_CACHE_METADATA_MAX_SECTORS_WARNING)
- DMWARN("Metadata device %s is larger than %u sectors: excess space will not be used.",
- bdevname(ca->metadata_dev->bdev, b), THIN_METADATA_MAX_SECTORS);
+ DMWARN("Metadata device %pg is larger than %u sectors: excess space will not be used.",
+ ca->metadata_dev->bdev, THIN_METADATA_MAX_SECTORS);
return 0;
}
@@ -3345,7 +3344,6 @@ static void disable_passdown_if_not_supported(struct cache *cache)
struct block_device *origin_bdev = cache->origin_dev->bdev;
struct queue_limits *origin_limits = &bdev_get_queue(origin_bdev)->limits;
const char *reason = NULL;
- char buf[BDEVNAME_SIZE];
if (!cache->features.discard_passdown)
return;
@@ -3357,8 +3355,8 @@ static void disable_passdown_if_not_supported(struct cache *cache)
reason = "max discard sectors smaller than a block";
if (reason) {
- DMWARN("Origin device (%s) %s: Disabling discard passdown.",
- bdevname(origin_bdev, buf), reason);
+ DMWARN("Origin device (%pg) %s: Disabling discard passdown.",
+ origin_bdev, reason);
cache->features.discard_passdown = false;
}
}
diff --git a/drivers/md/dm-clone-target.c b/drivers/md/dm-clone-target.c
index 4599632d7a84c..128316a73d016 100644
--- a/drivers/md/dm-clone-target.c
+++ b/drivers/md/dm-clone-target.c
@@ -1682,7 +1682,6 @@ static int parse_metadata_dev(struct clone *clone, struct dm_arg_set *as, char *
{
int r;
sector_t metadata_dev_size;
- char b[BDEVNAME_SIZE];
r = dm_get_device(clone->ti, dm_shift_arg(as), FMODE_READ | FMODE_WRITE,
&clone->metadata_dev);
@@ -1693,8 +1692,8 @@ static int parse_metadata_dev(struct clone *clone, struct dm_arg_set *as, char *
metadata_dev_size = get_dev_size(clone->metadata_dev);
if (metadata_dev_size > DM_CLONE_METADATA_MAX_SECTORS_WARNING)
- DMWARN("Metadata device %s is larger than %u sectors: excess space will not be used.",
- bdevname(clone->metadata_dev->bdev, b), DM_CLONE_METADATA_MAX_SECTORS);
+ DMWARN("Metadata device %pg is larger than %u sectors: excess space will not be used.",
+ clone->metadata_dev->bdev, DM_CLONE_METADATA_MAX_SECTORS);
return 0;
}
@@ -2033,7 +2032,6 @@ static void disable_passdown_if_not_supported(struct clone *clone)
struct block_device *dest_dev = clone->dest_dev->bdev;
struct queue_limits *dest_limits = &bdev_get_queue(dest_dev)->limits;
const char *reason = NULL;
- char buf[BDEVNAME_SIZE];
if (!test_bit(DM_CLONE_DISCARD_PASSDOWN, &clone->flags))
return;
@@ -2044,8 +2042,8 @@ static void disable_passdown_if_not_supported(struct clone *clone)
reason = "max discard sectors smaller than a region";
if (reason) {
- DMWARN("Destination device (%s) %s: Disabling discard passdown.",
- bdevname(dest_dev, buf), reason);
+ DMWARN("Destination device (%pd) %s: Disabling discard passdown.",
+ dest_dev, reason);
clear_bit(DM_CLONE_DISCARD_PASSDOWN, &clone->flags);
}
}
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index f4719b65e5e33..411403b3ec435 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -899,10 +899,8 @@ static int setup_scsi_dh(struct block_device *bdev, struct multipath *m,
if (m->hw_handler_name) {
r = scsi_dh_attach(q, m->hw_handler_name);
if (r == -EBUSY) {
- char b[BDEVNAME_SIZE];
-
- printk(KERN_INFO "dm-mpath: retaining handler on device %s\n",
- bdevname(bdev, b));
+ printk(KERN_INFO "dm-mpath: retaining handler on device %pg\n",
+ bdev);
goto retain;
}
if (r < 0) {
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index e43096cfe9e22..f4ed756ab391a 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -230,15 +230,14 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
sector_t dev_size = bdev_nr_sectors(bdev);
unsigned short logical_block_size_sectors =
limits->logical_block_size >> SECTOR_SHIFT;
- char b[BDEVNAME_SIZE];
if (!dev_size)
return 0;
if ((start >= dev_size) || (start + len > dev_size)) {
- DMWARN("%s: %s too small for target: "
+ DMWARN("%s: %pg too small for target: "
"start=%llu, len=%llu, dev_size=%llu",
- dm_device_name(ti->table->md), bdevname(bdev, b),
+ dm_device_name(ti->table->md), bdev,
(unsigned long long)start,
(unsigned long long)len,
(unsigned long long)dev_size);
@@ -253,10 +252,10 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
unsigned int zone_sectors = bdev_zone_sectors(bdev);
if (start & (zone_sectors - 1)) {
- DMWARN("%s: start=%llu not aligned to h/w zone size %u of %s",
+ DMWARN("%s: start=%llu not aligned to h/w zone size %u of %pg",
dm_device_name(ti->table->md),
(unsigned long long)start,
- zone_sectors, bdevname(bdev, b));
+ zone_sectors, bdev);
return 1;
}
@@ -270,10 +269,10 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
* the sector range.
*/
if (len & (zone_sectors - 1)) {
- DMWARN("%s: len=%llu not aligned to h/w zone size %u of %s",
+ DMWARN("%s: len=%llu not aligned to h/w zone size %u of %pg",
dm_device_name(ti->table->md),
(unsigned long long)len,
- zone_sectors, bdevname(bdev, b));
+ zone_sectors, bdev);
return 1;
}
}
@@ -283,19 +282,19 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
if (start & (logical_block_size_sectors - 1)) {
DMWARN("%s: start=%llu not aligned to h/w "
- "logical block size %u of %s",
+ "logical block size %u of %pg",
dm_device_name(ti->table->md),
(unsigned long long)start,
- limits->logical_block_size, bdevname(bdev, b));
+ limits->logical_block_size, bdev);
return 1;
}
if (len & (logical_block_size_sectors - 1)) {
DMWARN("%s: len=%llu not aligned to h/w "
- "logical block size %u of %s",
+ "logical block size %u of %pg",
dm_device_name(ti->table->md),
(unsigned long long)len,
- limits->logical_block_size, bdevname(bdev, b));
+ limits->logical_block_size, bdev);
return 1;
}
@@ -400,20 +399,19 @@ static int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev,
struct queue_limits *limits = data;
struct block_device *bdev = dev->bdev;
struct request_queue *q = bdev_get_queue(bdev);
- char b[BDEVNAME_SIZE];
if (unlikely(!q)) {
- DMWARN("%s: Cannot set limits for nonexistent device %s",
- dm_device_name(ti->table->md), bdevname(bdev, b));
+ DMWARN("%s: Cannot set limits for nonexistent device %pg",
+ dm_device_name(ti->table->md), bdev);
return 0;
}
if (blk_stack_limits(limits, &q->limits,
get_start_sect(bdev) + start) < 0)
- DMWARN("%s: adding target device %s caused an alignment inconsistency: "
+ DMWARN("%s: adding target device %pg caused an alignment inconsistency: "
"physical_block_size=%u, logical_block_size=%u, "
"alignment_offset=%u, start=%llu",
- dm_device_name(ti->table->md), bdevname(bdev, b),
+ dm_device_name(ti->table->md), bdev,
q->limits.physical_block_size,
q->limits.logical_block_size,
q->limits.alignment_offset,
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index f4234d615aa1b..d210d1fffc3b4 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2824,7 +2824,6 @@ static void disable_passdown_if_not_supported(struct pool_c *pt)
struct block_device *data_bdev = pt->data_dev->bdev;
struct queue_limits *data_limits = &bdev_get_queue(data_bdev)->limits;
const char *reason = NULL;
- char buf[BDEVNAME_SIZE];
if (!pt->adjusted_pf.discard_passdown)
return;
@@ -2836,7 +2835,7 @@ static void disable_passdown_if_not_supported(struct pool_c *pt)
reason = "max discard sectors smaller than a block";
if (reason) {
- DMWARN("Data device (%s) %s: Disabling discard passdown.", bdevname(data_bdev, buf), reason);
+ DMWARN("Data device (%pg) %s: Disabling discard passdown.", data_bdev, reason);
pt->adjusted_pf.discard_passdown = false;
}
}
@@ -3201,11 +3200,10 @@ static sector_t get_dev_size(struct block_device *bdev)
static void warn_if_metadata_device_too_big(struct block_device *bdev)
{
sector_t metadata_dev_size = get_dev_size(bdev);
- char buffer[BDEVNAME_SIZE];
if (metadata_dev_size > THIN_METADATA_MAX_SECTORS_WARNING)
- DMWARN("Metadata device %s is larger than %u sectors: excess space will not be used.",
- bdevname(bdev, buffer), THIN_METADATA_MAX_SECTORS);
+ DMWARN("Metadata device %pg is larger than %u sectors: excess space will not be used.",
+ bdev, THIN_METADATA_MAX_SECTORS);
}
static sector_t get_metadata_dev_size(struct block_device *bdev)
--
2.30.2
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