btrfs: sink gfp parameter to clear_extent_bits

Callers pass GFP_NOFS and GFP_KERNEL. No need to pass the flags around.

Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 4e47849..3bc88b4 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4357,7 +4357,7 @@
 		if (ret)
 			break;
 
-		clear_extent_bits(dirty_pages, start, end, mark, GFP_NOFS);
+		clear_extent_bits(dirty_pages, start, end, mark);
 		while (start <= end) {
 			eb = btrfs_find_tree_block(root->fs_info, start);
 			start += root->nodesize;