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bdi: use bdi_dev_name() to get device name

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[ Upstream commit d51cfc53ade3189455a1b88ec7a2ff0c24597cf8 ]

Use the common interface bdi_dev_name() to get device name.

Signed-off-by: Yufen Yu <yuyufen@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>

Add missing <linux/backing-dev.h> include BFQ

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yufen Yu 2020-05-04 14:47:55 +02:00 committed by Greg Kroah-Hartman
parent 0129d7637f
commit 19a845e19d
4 changed files with 10 additions and 8 deletions
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6
block/bfq-iosched.c
View File

@ -132,6 +132,7 @@
#include <linux/ioprio.h>
#include <linux/sbitmap.h>
#include <linux/delay.h>
#include <linux/backing-dev.h>
#include "blk.h"
#include "blk-mq.h"
@ -4212,8 +4213,9 @@ bfq_set_next_ioprio_data(struct bfq_queue *bfqq, struct bfq_io_cq *bic)
ioprio_class = IOPRIO_PRIO_CLASS(bic->ioprio);
switch (ioprio_class) {
default:
dev_err(bfqq->bfqd->queue->backing_dev_info->dev,
"bfq: bad prio class %d\n", ioprio_class);
pr_err("bdi %s: bfq: bad prio class %d\n",
bdi_dev_name(bfqq->bfqd->queue->backing_dev_info),
ioprio_class);
/* fall through */
case IOPRIO_CLASS_NONE:
/*

2
block/blk-cgroup.c
View File

@ -474,7 +474,7 @@ const char *blkg_dev_name(struct blkcg_gq *blkg)
{
/* some drivers (floppy) instantiate a queue w/o disk registered */
if (blkg->q->backing_dev_info->dev)
return dev_name(blkg->q->backing_dev_info->dev);
return bdi_dev_name(blkg->q->backing_dev_info);
return NULL;
}
EXPORT_SYMBOL_GPL(blkg_dev_name);

2
fs/ceph/debugfs.c
View File

@ -251,7 +251,7 @@ int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
goto out;
snprintf(name, sizeof(name), "../../bdi/%s",
dev_name(fsc->sb->s_bdi->dev));
bdi_dev_name(fsc->sb->s_bdi));
fsc->debugfs_bdi =
debugfs_create_symlink("bdi",
fsc->client->debugfs_dir,

8
include/trace/events/wbt.h
View File

@ -33,7 +33,7 @@ TRACE_EVENT(wbt_stat,
),
TP_fast_assign(
strlcpy(__entry->name, dev_name(bdi->dev),
strlcpy(__entry->name, bdi_dev_name(bdi),
ARRAY_SIZE(__entry->name));
__entry->rmean = stat[0].mean;
__entry->rmin = stat[0].min;
@ -68,7 +68,7 @@ TRACE_EVENT(wbt_lat,
),
TP_fast_assign(
strlcpy(__entry->name, dev_name(bdi->dev),
strlcpy(__entry->name, bdi_dev_name(bdi),
ARRAY_SIZE(__entry->name));
__entry->lat = div_u64(lat, 1000);
),
@ -105,7 +105,7 @@ TRACE_EVENT(wbt_step,
),
TP_fast_assign(
strlcpy(__entry->name, dev_name(bdi->dev),
strlcpy(__entry->name, bdi_dev_name(bdi),
ARRAY_SIZE(__entry->name));
__entry->msg = msg;
__entry->step = step;
@ -141,7 +141,7 @@ TRACE_EVENT(wbt_timer,
),
TP_fast_assign(
strlcpy(__entry->name, dev_name(bdi->dev),
strlcpy(__entry->name, bdi_dev_name(bdi),
ARRAY_SIZE(__entry->name));
__entry->status = status;
__entry->step = step;