block: pass a gendisk to bdev_disk_changed
bdev_disk_changed can only operate on whole devices. Make that clear
by passing a gendisk instead of the struct block_device.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210624123240.441814-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index e90f7d3..4fb1f95 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -647,14 +647,13 @@ static inline void loop_update_dio(struct loop_device *lo)
lo->use_dio);
}
-static void loop_reread_partitions(struct loop_device *lo,
- struct block_device *bdev)
+static void loop_reread_partitions(struct loop_device *lo)
{
int rc;
- mutex_lock(&bdev->bd_disk->open_mutex);
- rc = bdev_disk_changed(bdev, false);
- mutex_unlock(&bdev->bd_disk->open_mutex);
+ mutex_lock(&lo->lo_disk->open_mutex);
+ rc = bdev_disk_changed(lo->lo_disk, false);
+ mutex_unlock(&lo->lo_disk->open_mutex);
if (rc)
pr_warn("%s: partition scan of loop%d (%s) failed (rc=%d)\n",
__func__, lo->lo_number, lo->lo_file_name, rc);
@@ -752,7 +751,7 @@ static int loop_change_fd(struct loop_device *lo, struct block_device *bdev,
*/
fput(old_file);
if (partscan)
- loop_reread_partitions(lo, bdev);
+ loop_reread_partitions(lo);
return 0;
out_err:
@@ -1174,7 +1173,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
bdgrab(bdev);
mutex_unlock(&lo->lo_mutex);
if (partscan)
- loop_reread_partitions(lo, bdev);
+ loop_reread_partitions(lo);
if (!(mode & FMODE_EXCL))
bd_abort_claiming(bdev, loop_configure);
return 0;
@@ -1268,10 +1267,10 @@ static int __loop_clr_fd(struct loop_device *lo, bool release)
* current holder is released.
*/
if (!release)
- mutex_lock(&bdev->bd_disk->open_mutex);
- err = bdev_disk_changed(bdev, false);
+ mutex_lock(&lo->lo_disk->open_mutex);
+ err = bdev_disk_changed(lo->lo_disk, false);
if (!release)
- mutex_unlock(&bdev->bd_disk->open_mutex);
+ mutex_unlock(&lo->lo_disk->open_mutex);
if (err)
pr_warn("%s: partition scan of loop%d failed (rc=%d)\n",
__func__, lo_number, err);
@@ -1416,7 +1415,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
out_unlock:
mutex_unlock(&lo->lo_mutex);
if (partscan)
- loop_reread_partitions(lo, bdev);
+ loop_reread_partitions(lo);
return err;
}
