btrfs-progs: Use fs_info instead of root for BTRFS_MAX_XATTR_SIZE

Do a cleanup. Also make it consistent with kernel.  Use fs_info instead
of root for BTRFS_MAX_XATTR_SIZE, since maybe in some situation we do
not know root, but just know fs_info.

To be consistent with kernel, change macro to inline function.

Signed-off-by: Gu Jinxiang <gujx@cn.fujitsu.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/dir-item.c b/dir-item.c
index 462546c0..0b7250c9 100644
--- a/dir-item.c
+++ b/dir-item.c
@@ -311,7 +311,8 @@ static int verify_dir_item(struct btrfs_root *root,
 
 	/* BTRFS_MAX_XATTR_SIZE is the same for all dir items */
 	if ((btrfs_dir_data_len(leaf, dir_item) +
-	     btrfs_dir_name_len(leaf, dir_item)) > BTRFS_MAX_XATTR_SIZE(root)) {
+	     btrfs_dir_name_len(leaf, dir_item)) >
+			BTRFS_MAX_XATTR_SIZE(root->fs_info)) {
 		fprintf(stderr, "invalid dir item name + data len: %u + %u\n",
 		       (unsigned)btrfs_dir_name_len(leaf, dir_item),
 		       (unsigned)btrfs_dir_data_len(leaf, dir_item));