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path: root/drivers/md/dm-table.c
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Diffstat (limited to 'drivers/md/dm-table.c')
-rw-r--r--drivers/md/dm-table.c37
1 files changed, 14 insertions, 23 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index a740a6950f59..a63161aec487 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -43,7 +43,7 @@ struct dm_table {
* device. This should be a combination of FMODE_READ
* and FMODE_WRITE.
*/
- int mode;
+ fmode_t mode;
/* a list of devices used by this table */
struct list_head devices;
@@ -217,7 +217,7 @@ static int alloc_targets(struct dm_table *t, unsigned int num)
return 0;
}
-int dm_table_create(struct dm_table **result, int mode,
+int dm_table_create(struct dm_table **result, fmode_t mode,
unsigned num_targets, struct mapped_device *md)
{
struct dm_table *t = kzalloc(sizeof(*t), GFP_KERNEL);
@@ -313,19 +313,6 @@ static inline int check_space(struct dm_table *t)
}
/*
- * Convert a device path to a dev_t.
- */
-static int lookup_device(const char *path, dev_t *dev)
-{
- struct block_device *bdev = lookup_bdev(path);
- if (IS_ERR(bdev))
- return PTR_ERR(bdev);
- *dev = bdev->bd_dev;
- bdput(bdev);
- return 0;
-}
-
-/*
* See if we've already got a device in the list.
*/
static struct dm_dev_internal *find_device(struct list_head *l, dev_t dev)
@@ -357,7 +344,7 @@ static int open_dev(struct dm_dev_internal *d, dev_t dev,
return PTR_ERR(bdev);
r = bd_claim_by_disk(bdev, _claim_ptr, dm_disk(md));
if (r)
- blkdev_put(bdev);
+ blkdev_put(bdev, d->dm_dev.mode);
else
d->dm_dev.bdev = bdev;
return r;
@@ -372,7 +359,7 @@ static void close_dev(struct dm_dev_internal *d, struct mapped_device *md)
return;
bd_release_from_disk(d->dm_dev.bdev, dm_disk(md));
- blkdev_put(d->dm_dev.bdev);
+ blkdev_put(d->dm_dev.bdev, d->dm_dev.mode);
d->dm_dev.bdev = NULL;
}
@@ -395,7 +382,7 @@ static int check_device_area(struct dm_dev_internal *dd, sector_t start,
* careful to leave things as they were if we fail to reopen the
* device.
*/
-static int upgrade_mode(struct dm_dev_internal *dd, int new_mode,
+static int upgrade_mode(struct dm_dev_internal *dd, fmode_t new_mode,
struct mapped_device *md)
{
int r;
@@ -421,7 +408,7 @@ static int upgrade_mode(struct dm_dev_internal *dd, int new_mode,
*/
static int __table_get_device(struct dm_table *t, struct dm_target *ti,
const char *path, sector_t start, sector_t len,
- int mode, struct dm_dev **result)
+ fmode_t mode, struct dm_dev **result)
{
int r;
dev_t uninitialized_var(dev);
@@ -437,8 +424,12 @@ static int __table_get_device(struct dm_table *t, struct dm_target *ti,
return -EOVERFLOW;
} else {
/* convert the path to a device */
- if ((r = lookup_device(path, &dev)))
- return r;
+ struct block_device *bdev = lookup_bdev(path);
+
+ if (IS_ERR(bdev))
+ return PTR_ERR(bdev);
+ dev = bdev->bd_dev;
+ bdput(bdev);
}
dd = find_device(&t->devices, dev);
@@ -537,7 +528,7 @@ void dm_set_device_limits(struct dm_target *ti, struct block_device *bdev)
EXPORT_SYMBOL_GPL(dm_set_device_limits);
int dm_get_device(struct dm_target *ti, const char *path, sector_t start,
- sector_t len, int mode, struct dm_dev **result)
+ sector_t len, fmode_t mode, struct dm_dev **result)
{
int r = __table_get_device(ti->table, ti, path,
start, len, mode, result);
@@ -887,7 +878,7 @@ struct list_head *dm_table_get_devices(struct dm_table *t)
return &t->devices;
}
-int dm_table_get_mode(struct dm_table *t)
+fmode_t dm_table_get_mode(struct dm_table *t)
{
return t->mode;
}