jbd: remove the second argument of k[un]map_atomic()

Acked-by: NJan Kara <jack@suse.cz>
Signed-off-by: NCong Wang <amwang@redhat.com>

fs/jbd/journal.c

@@ -328,7 +328,7 @@ int journal_write_metadata_buffer(transaction_t *transaction,
 		new_offset = offset_in_page(jh2bh(jh_in)->b_data);
 	}
 
-	mapped_data = kmap_atomic(new_page, KM_USER0);
+	mapped_data = kmap_atomic(new_page);
 	/*
 	 * Check for escaping
 	 */
@@ -337,7 +337,7 @@ int journal_write_metadata_buffer(transaction_t *transaction,
 		need_copy_out = 1;
 		do_escape = 1;
 	}
-	kunmap_atomic(mapped_data, KM_USER0);
+	kunmap_atomic(mapped_data);
 
 	/*
 	 * Do we need to do a data copy?
@@ -354,9 +354,9 @@ int journal_write_metadata_buffer(transaction_t *transaction,
 		}
 
 		jh_in->b_frozen_data = tmp;
-		mapped_data = kmap_atomic(new_page, KM_USER0);
+		mapped_data = kmap_atomic(new_page);
 		memcpy(tmp, mapped_data + new_offset, jh2bh(jh_in)->b_size);
-		kunmap_atomic(mapped_data, KM_USER0);
+		kunmap_atomic(mapped_data);
 
 		new_page = virt_to_page(tmp);
 		new_offset = offset_in_page(tmp);
@@ -368,9 +368,9 @@ int journal_write_metadata_buffer(transaction_t *transaction,
 	 * copying, we can finally do so.
 	 */
 	if (do_escape) {
-		mapped_data = kmap_atomic(new_page, KM_USER0);
+		mapped_data = kmap_atomic(new_page);
 		*((unsigned int *)(mapped_data + new_offset)) = 0;
-		kunmap_atomic(mapped_data, KM_USER0);
+		kunmap_atomic(mapped_data);
 	}
 
 	set_bh_page(new_bh, new_page, new_offset);

fs/jbd/transaction.c

@@ -718,9 +718,9 @@ do_get_write_access(handle_t *handle, struct journal_head *jh,
 			    "Possible IO failure.\n");
 		page = jh2bh(jh)->b_page;
 		offset = offset_in_page(jh2bh(jh)->b_data);
-		source = kmap_atomic(page, KM_USER0);
+		source = kmap_atomic(page);
 		memcpy(jh->b_frozen_data, source+offset, jh2bh(jh)->b_size);
-		kunmap_atomic(source, KM_USER0);
+		kunmap_atomic(source);
 	}
 	jbd_unlock_bh_state(bh);