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-rw-r--r--fs/block_dev.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 37967bcea05c..b3c1d3dae77d 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -132,8 +132,7 @@ int set_blocksize(struct block_device *bdev, int size)
/* Check that the block device is not memory mapped */
mapping = bdev->bd_inode->i_mapping;
mutex_lock(&mapping->i_mmap_mutex);
- if (!prio_tree_empty(&mapping->i_mmap) ||
- !list_empty(&mapping->i_mmap_nonlinear)) {
+ if (mapping_mapped(mapping)) {
mutex_unlock(&mapping->i_mmap_mutex);
percpu_up_write(&bdev->bd_block_size_semaphore);
return -EBUSY;