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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2008-03-31 10:03:41 +0900
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-04-18 11:48:26 -0500
commit842ea771c38a3f0f78bdb1b4d47881e6a210fc15 (patch)
tree9cf19d7f833922ddada7cf3ccbeec617ac77eda1 /block/bsg.c
parent43ac9e62c4a0a47fe3de1f1eb9ca7b8c91dce234 (diff)
downloadlinux-842ea771c38a3f0f78bdb1b4d47881e6a210fc15.tar.gz
[SCSI] bsg: remove minor in struct bsg_device
minor in struct bsg_device is used as identifier to find the corresponding struct bsg_device_class. However, request_queuse can be used as identifier for that and the minor in struct bsg_device is unnecessary. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'block/bsg.c')
-rw-r--r--block/bsg.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/block/bsg.c b/block/bsg.c
index b413318a7c5..93399812421 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -37,7 +37,6 @@ struct bsg_device {
struct list_head done_list;
struct hlist_node dev_list;
atomic_t ref_count;
- int minor;
int queued_cmds;
int done_cmds;
wait_queue_head_t wq_done;
@@ -758,9 +757,8 @@ static struct bsg_device *bsg_add_device(struct inode *inode,
bsg_set_block(bd, file);
atomic_set(&bd->ref_count, 1);
- bd->minor = iminor(inode);
mutex_lock(&bsg_mutex);
- hlist_add_head(&bd->dev_list, bsg_dev_idx_hash(bd->minor));
+ hlist_add_head(&bd->dev_list, bsg_dev_idx_hash(iminor(inode)));
strncpy(bd->name, rq->bsg_dev.class_dev->class_id, sizeof(bd->name) - 1);
dprintk("bound to <%s>, max queue %d\n",
@@ -770,7 +768,7 @@ static struct bsg_device *bsg_add_device(struct inode *inode,
return bd;
}
-static struct bsg_device *__bsg_get_device(int minor)
+static struct bsg_device *__bsg_get_device(int minor, struct request_queue *q)
{
struct bsg_device *bd;
struct hlist_node *entry;
@@ -778,7 +776,7 @@ static struct bsg_device *__bsg_get_device(int minor)
mutex_lock(&bsg_mutex);
hlist_for_each_entry(bd, entry, bsg_dev_idx_hash(minor), dev_list) {
- if (bd->minor == minor) {
+ if (bd->queue == q) {
atomic_inc(&bd->ref_count);
goto found;
}
@@ -806,7 +804,7 @@ static struct bsg_device *bsg_get_device(struct inode *inode, struct file *file)
if (!bcd)
return ERR_PTR(-ENODEV);
- bd = __bsg_get_device(iminor(inode));
+ bd = __bsg_get_device(iminor(inode), bcd->queue);
if (bd)
return bd;