btrfs: open code set_extent_bits_nowait

The helper only passes GFP_NOWAIT as gfp flags and is used two times.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/extent-io-tree.h

@@ -156,12 +156,6 @@ int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
 int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
 		   u32 bits, struct extent_state **cached_state, gfp_t mask);
 
-static inline int set_extent_bits_nowait(struct extent_io_tree *tree, u64 start,
-					 u64 end, u32 bits)
-{
-	return set_extent_bit(tree, start, end, bits, NULL, GFP_NOWAIT);
-}
-
 static inline int set_extent_bits(struct extent_io_tree *tree, u64 start,
 		u64 end, u32 bits)
 {

fs/btrfs/extent_map.c

@@ -364,8 +364,9 @@ static void extent_map_device_set_bits(struct extent_map *em, unsigned bits)
 		struct btrfs_io_stripe *stripe = &map->stripes[i];
 		struct btrfs_device *device = stripe->dev;
 
-		set_extent_bits_nowait(&device->alloc_state, stripe->physical,
-				 stripe->physical + stripe_size - 1, bits);
+		set_extent_bit(&device->alloc_state, stripe->physical,
+			       stripe->physical + stripe_size - 1, bits, NULL,
+			       GFP_NOWAIT);
 	}
 }
 

fs/btrfs/zoned.c

@@ -1611,8 +1611,8 @@ void btrfs_redirty_list_add(struct btrfs_transaction *trans,
 	memzero_extent_buffer(eb, 0, eb->len);
 	set_bit(EXTENT_BUFFER_NO_CHECK, &eb->bflags);
 	set_extent_buffer_dirty(eb);
-	set_extent_bits_nowait(&trans->dirty_pages, eb->start,
-			       eb->start + eb->len - 1, EXTENT_DIRTY);
+	set_extent_bit(&trans->dirty_pages, eb->start, eb->start + eb->len - 1,
+			EXTENT_DIRTY, NULL, GFP_NOWAIT);
 }
 
 bool btrfs_use_zone_append(struct btrfs_bio *bbio)