btrfs: make btrfs_check_data_free_space take btrfs_inode

Instead of calling BTRFS_I on the passed vfs_inode take btrfs_inode
directly.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/block-group.c

@@ -2508,7 +2508,8 @@ static int cache_save_setup(struct btrfs_block_group *block_group,
 	num_pages *= 16;
 	num_pages *= PAGE_SIZE;
 
-	ret = btrfs_check_data_free_space(inode, &data_reserved, 0, num_pages);
+	ret = btrfs_check_data_free_space(BTRFS_I(inode), &data_reserved, 0,
+					  num_pages);
 	if (ret)
 		goto out_put;
 

fs/btrfs/delalloc-space.c

@@ -237,10 +237,10 @@ int btrfs_alloc_data_chunk_ondemand(struct btrfs_inode *inode, u64 bytes)
 	return 0;
 }
 
-int btrfs_check_data_free_space(struct inode *inode,
+int btrfs_check_data_free_space(struct btrfs_inode *inode,
 			struct extent_changeset **reserved, u64 start, u64 len)
 {
-	struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+	struct btrfs_fs_info *fs_info = inode->root->fs_info;
 	int ret;
 
 	/* align the range */
@@ -248,12 +248,12 @@ int btrfs_check_data_free_space(struct inode *inode,
 	      round_down(start, fs_info->sectorsize);
 	start = round_down(start, fs_info->sectorsize);
 
-	ret = btrfs_alloc_data_chunk_ondemand(BTRFS_I(inode), len);
+	ret = btrfs_alloc_data_chunk_ondemand(inode, len);
 	if (ret < 0)
 		return ret;
 
 	/* Use new btrfs_qgroup_reserve_data to reserve precious data space. */
-	ret = btrfs_qgroup_reserve_data(BTRFS_I(inode), reserved, start, len);
+	ret = btrfs_qgroup_reserve_data(inode, reserved, start, len);
 	if (ret < 0)
 		btrfs_free_reserved_data_space_noquota(fs_info, len);
 	else
@@ -558,7 +558,7 @@ int btrfs_delalloc_reserve_space(struct inode *inode,
 {
 	int ret;
 
-	ret = btrfs_check_data_free_space(inode, reserved, start, len);
+	ret = btrfs_check_data_free_space(BTRFS_I(inode), reserved, start, len);
 	if (ret < 0)
 		return ret;
 	ret = btrfs_delalloc_reserve_metadata(BTRFS_I(inode), len);

fs/btrfs/delalloc-space.h

@@ -6,7 +6,7 @@
 struct extent_changeset;
 
 int btrfs_alloc_data_chunk_ondemand(struct btrfs_inode *inode, u64 bytes);
-int btrfs_check_data_free_space(struct inode *inode,
+int btrfs_check_data_free_space(struct btrfs_inode *inode,
 			struct extent_changeset **reserved, u64 start, u64 len);
 void btrfs_free_reserved_data_space(struct btrfs_inode *inode,
 			struct extent_changeset *reserved, u64 start, u64 len);

fs/btrfs/file.c

@@ -1681,7 +1681,8 @@ static noinline ssize_t btrfs_buffered_write(struct kiocb *iocb,
 				fs_info->sectorsize);
 
 		extent_changeset_release(data_reserved);
-		ret = btrfs_check_data_free_space(inode, &data_reserved, pos,
+		ret = btrfs_check_data_free_space(BTRFS_I(inode),
+						  &data_reserved, pos,
 						  write_bytes);
 		if (ret < 0) {
 			if (btrfs_check_nocow_lock(BTRFS_I(inode), pos,

fs/btrfs/inode.c

@@ -4519,8 +4519,8 @@ int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
 	block_end = block_start + blocksize - 1;
 
 
-	ret = btrfs_check_data_free_space(inode, &data_reserved, block_start,
-					  blocksize);
+	ret = btrfs_check_data_free_space(BTRFS_I(inode), &data_reserved,
+					  block_start, blocksize);
 	if (ret < 0) {
 		if (btrfs_check_nocow_lock(BTRFS_I(inode), block_start,
 					   &write_bytes) > 0) {