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Date: Tue, 14 Apr 2015 11:23:45 +0200
From: Jan Kara <jack@...e.cz>
To: Dmitry Monakhov <dmonakhov@...nvz.org>
Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
axboe@...nel.dk, viro@...iv.linux.org.uk, dm-devel@...hat.com
Subject: Re: [PATCH 6/7] block/partitions: use block_device name vsprintf
helper v2
On Mon 13-04-15 16:31:39, Dmitry Monakhov wrote:
> - bdevname() now works via "%pg" format specifier (in responce to Joe's comments)
>
> Signed-off-by: Dmitry Monakhov <dmonakhov@...nvz.org>
Looks good to me. You can add:
Reviewed-by: Jan Kara <jack@...e.cz>
Honza
> ---
> block/partition-generic.c | 3 ++-
> block/partitions/amiga.c | 13 ++++++-------
> block/partitions/sgi.c | 9 ++++-----
> block/partitions/sun.c | 9 ++++-----
> 4 files changed, 16 insertions(+), 18 deletions(-)
>
> diff --git a/block/partition-generic.c b/block/partition-generic.c
> index 0d9e5f9..ae67f16 100644
> --- a/block/partition-generic.c
> +++ b/block/partition-generic.c
> @@ -45,7 +45,8 @@ char *disk_name(struct gendisk *hd, int partno, char *buf)
>
> const char *bdevname(struct block_device *bdev, char *buf)
> {
> - return disk_name(bdev->bd_disk, bdev->bd_part->partno, buf);
> + snprintf(buf, BDEVNAME_SIZE, "%pg", bdev);
> + return buf;
> }
>
> EXPORT_SYMBOL(bdevname);
> diff --git a/block/partitions/amiga.c b/block/partitions/amiga.c
> index 2b13533..240f4f6 100644
> --- a/block/partitions/amiga.c
> +++ b/block/partitions/amiga.c
> @@ -34,7 +34,6 @@ int amiga_partition(struct parsed_partitions *state)
> int start_sect, nr_sects, blk, part, res = 0;
> int blksize = 1; /* Multiplier for disk block size */
> int slot = 1;
> - char b[BDEVNAME_SIZE];
>
> for (blk = 0; ; blk++, put_dev_sector(sect)) {
> if (blk == RDB_ALLOCATION_LIMIT)
> @@ -42,8 +41,8 @@ int amiga_partition(struct parsed_partitions *state)
> data = read_part_sector(state, blk, §);
> if (!data) {
> if (warn_no_part)
> - pr_err("Dev %s: unable to read RDB block %d\n",
> - bdevname(state->bdev, b), blk);
> + pr_err("Dev %pg: unable to read RDB block %d\n",
> + state->bdev, blk);
> res = -1;
> goto rdb_done;
> }
> @@ -64,8 +63,8 @@ int amiga_partition(struct parsed_partitions *state)
> break;
> }
>
> - pr_err("Dev %s: RDB in block %d has bad checksum\n",
> - bdevname(state->bdev, b), blk);
> + pr_err("Dev %pg: RDB in block %d has bad checksum\n",
> + state->bdev, blk);
> }
>
> /* blksize is blocks per 512 byte standard block */
> @@ -85,8 +84,8 @@ int amiga_partition(struct parsed_partitions *state)
> data = read_part_sector(state, blk, §);
> if (!data) {
> if (warn_no_part)
> - pr_err("Dev %s: unable to read partition block %d\n",
> - bdevname(state->bdev, b), blk);
> + pr_err("Dev %pg: unable to read partition block %d\n",
> + state->bdev, blk);
> res = -1;
> goto rdb_done;
> }
> diff --git a/block/partitions/sgi.c b/block/partitions/sgi.c
> index ea8a86d..b040277 100644
> --- a/block/partitions/sgi.c
> +++ b/block/partitions/sgi.c
> @@ -37,7 +37,6 @@ int sgi_partition(struct parsed_partitions *state)
> Sector sect;
> struct sgi_disklabel *label;
> struct sgi_partition *p;
> - char b[BDEVNAME_SIZE];
>
> label = read_part_sector(state, 0, §);
> if (!label)
> @@ -45,8 +44,8 @@ int sgi_partition(struct parsed_partitions *state)
> p = &label->partitions[0];
> magic = label->magic_mushroom;
> if(be32_to_cpu(magic) != SGI_LABEL_MAGIC) {
> - /*printk("Dev %s SGI disklabel: bad magic %08x\n",
> - bdevname(bdev, b), be32_to_cpu(magic));*/
> + /*printk("Dev %pg SGI disklabel: bad magic %08x\n",
> + bdev, be32_to_cpu(magic));*/
> put_dev_sector(sect);
> return 0;
> }
> @@ -56,8 +55,8 @@ int sgi_partition(struct parsed_partitions *state)
> csum += be32_to_cpu(cs);
> }
> if(csum) {
> - printk(KERN_WARNING "Dev %s SGI disklabel: csum bad, label corrupted\n",
> - bdevname(state->bdev, b));
> + printk(KERN_WARNING "Dev %pg SGI disklabel: csum bad, label corrupted\n",
> + state->bdev);
> put_dev_sector(sect);
> return 0;
> }
> diff --git a/block/partitions/sun.c b/block/partitions/sun.c
> index b5b6fcf..25343d6 100644
> --- a/block/partitions/sun.c
> +++ b/block/partitions/sun.c
> @@ -57,7 +57,6 @@ int sun_partition(struct parsed_partitions *state)
> } * label;
> struct sun_partition *p;
> unsigned long spc;
> - char b[BDEVNAME_SIZE];
> int use_vtoc;
> int nparts;
>
> @@ -67,8 +66,8 @@ int sun_partition(struct parsed_partitions *state)
>
> p = label->partitions;
> if (be16_to_cpu(label->magic) != SUN_LABEL_MAGIC) {
> -/* printk(KERN_INFO "Dev %s Sun disklabel: bad magic %04x\n",
> - bdevname(bdev, b), be16_to_cpu(label->magic)); */
> +/* printk(KERN_INFO "Dev %pg Sun disklabel: bad magic %04x\n",
> + bdev, be16_to_cpu(label->magic)); */
> put_dev_sector(sect);
> return 0;
> }
> @@ -77,8 +76,8 @@ int sun_partition(struct parsed_partitions *state)
> for (csum = 0; ush >= ((__be16 *) label);)
> csum ^= *ush--;
> if (csum) {
> - printk("Dev %s Sun disklabel: Csum bad, label corrupted\n",
> - bdevname(state->bdev, b));
> + printk("Dev %pg Sun disklabel: Csum bad, label corrupted\n",
> + state->bdev);
> put_dev_sector(sect);
> return 0;
> }
> --
> 1.7.1
>
> --
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--
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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