1621 		void *mapped_buffer = kmap_atomic(spage->page);  in scrub_write_page_to_dev_replace()  local
1623 		clear_page(mapped_buffer);  in scrub_write_page_to_dev_replace()
1625 		kunmap_atomic(mapped_buffer);  in scrub_write_page_to_dev_replace()
1845 	void *mapped_buffer;  in scrub_checksum_tree_block()  local
1856 	mapped_buffer = kmap_atomic(page);  in scrub_checksum_tree_block()
1857 	h = (struct btrfs_header *)mapped_buffer;  in scrub_checksum_tree_block()
1882 	p = ((u8 *)mapped_buffer) + BTRFS_CSUM_SIZE;  in scrub_checksum_tree_block()
1888 		kunmap_atomic(mapped_buffer);  in scrub_checksum_tree_block()
1896 		mapped_buffer = kmap_atomic(page);  in scrub_checksum_tree_block()
1898 		p = mapped_buffer;  in scrub_checksum_tree_block()
1917 	void *mapped_buffer;  in scrub_checksum_super()  local
1930 	mapped_buffer = kmap_atomic(page);  in scrub_checksum_super()
1931 	s = (struct btrfs_super_block *)mapped_buffer;  in scrub_checksum_super()
1945 	p = ((u8 *)mapped_buffer) + BTRFS_CSUM_SIZE;  in scrub_checksum_super()
1951 		kunmap_atomic(mapped_buffer);  in scrub_checksum_super()
1959 		mapped_buffer = kmap_atomic(page);  in scrub_checksum_super()
1961 		p = mapped_buffer;  in scrub_checksum_super()