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target/iblock: Remove unused iblock_dev members 

ibd_depth and ibd_force are used write-only.  Remove them.
ibd_major/minor can be easily retrieved from ibd_bd, so get
rid of them too.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Roland Dreier 2011-07-05 15:35:02 -07:00 committed by Nicholas Bellinger
parent 8f3d14e2b0
commit 21bca31c96
2 changed files with 3 additions and 19 deletions
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17
drivers/target/target_core_iblock.c
View File

@ -167,8 +167,6 @@ static struct se_device *iblock_create_virtdevice(
dev_limits.hw_queue_depth = q->nr_requests;
dev_limits.queue_depth = q->nr_requests;
ib_dev->ibd_major = MAJOR(bd->bd_dev);
ib_dev->ibd_minor = MINOR(bd->bd_dev);
ib_dev->ibd_bd = bd;
dev = transport_add_device_to_core_hba(hba,
@ -177,8 +175,6 @@ static struct se_device *iblock_create_virtdevice(
if (!(dev))
goto failed;
ib_dev->ibd_depth = dev->queue_depth;
/*
* Check if the underlying struct block_device request_queue supports
* the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM
@ -208,8 +204,6 @@ static struct se_device *iblock_create_virtdevice(
ib_dev->ibd_bio_set = NULL;
}
ib_dev->ibd_bd = NULL;
ib_dev->ibd_major = 0;
ib_dev->ibd_minor = 0;
return ERR_PTR(ret);
}
@ -467,7 +461,7 @@ static ssize_t iblock_set_configfs_dev_params(struct se_hba *hba,
struct iblock_dev *ib_dev = se_dev->se_dev_su_ptr;
char *orig, *ptr, *arg_p, *opts;
substring_t args[MAX_OPT_ARGS];
int ret = 0, arg, token;
int ret = 0, token;
opts = kstrdup(page, GFP_KERNEL);
if (!opts)
@ -501,10 +495,6 @@ static ssize_t iblock_set_configfs_dev_params(struct se_hba *hba,
ib_dev->ibd_flags |= IBDF_HAS_UDEV_PATH;
break;
case Opt_force:
match_int(args, &arg);
ib_dev->ibd_force = arg;
printk(KERN_INFO "IBLOCK: Set force=%d\n",
ib_dev->ibd_force);
break;
default:
break;
@ -552,12 +542,11 @@ static ssize_t iblock_show_configfs_dev_params(
bl += sprintf(b + bl, " ");
if (bd) {
bl += sprintf(b + bl, "Major: %d Minor: %d %s\n",
ibd->ibd_major, ibd->ibd_minor, (!bd->bd_contains) ?
MAJOR(bd->bd_dev), MINOR(bd->bd_dev), (!bd->bd_contains) ?
"" : (bd->bd_holder == (struct iblock_dev *)ibd) ?
"CLAIMED: IBLOCK" : "CLAIMED: OS");
} else {
bl += sprintf(b + bl, "Major: %d Minor: %d\n",
ibd->ibd_major, ibd->ibd_minor);
bl += sprintf(b + bl, "Major: 0 Minor: 0\n");
}
return bl;

5
drivers/target/target_core_iblock.h
View File

@ -16,14 +16,9 @@ struct iblock_req {
} ____cacheline_aligned;
#define IBDF_HAS_UDEV_PATH 0x01
#define IBDF_HAS_FORCE 0x02
struct iblock_dev {
unsigned char ibd_udev_path[SE_UDEV_PATH_LEN];
int ibd_force;
int ibd_major;
int ibd_minor;
u32 ibd_depth;
u32 ibd_flags;
struct bio_set *ibd_bio_set;
struct block_device *ibd_bd;