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block: make /proc/partitions and /proc/diskstats use class_find_device()

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Use the proper class iterator function instead of mucking around in the
internals of the class structures.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2008-05-22 17:21:08 -04:00
parent 66c64afec1
commit 27f3025191
1 changed files with 13 additions and 12 deletions
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21
block/genhd.c
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@ -317,17 +317,21 @@ static void *part_start(struct seq_file *part, loff_t *pos)
return NULL;
}
static int find_next(struct device *dev, void *data)
{
if (dev->type == &disk_type)
return 1;
return 0;
}
static void *part_next(struct seq_file *part, void *v, loff_t *pos)
{
struct gendisk *gp = v;
struct device *dev;
++*pos;
list_for_each_entry(dev, &gp->dev.node, node) {
if (&dev->node == &block_class.devices)
return NULL;
if (dev->type == &disk_type)
dev = class_find_device(&block_class, &gp->dev, NULL, find_next);
if (dev)
return dev_to_disk(dev);
}
return NULL;
}
@ -578,12 +582,9 @@ static void *diskstats_next(struct seq_file *part, void *v, loff_t *pos)
struct device *dev;
++*pos;
list_for_each_entry(dev, &gp->dev.node, node) {
if (&dev->node == &block_class.devices)
return NULL;
if (dev->type == &disk_type)
dev = class_find_device(&block_class, &gp->dev, NULL, find_next);
if (dev)
return dev_to_disk(dev);
}
return NULL;
}