ext4: improve free space calculation for inline_data

In ext4 feature inline_data,it use the xattr's space to store the
inline data in inode.When we calculate the inline data as the xattr,we
add the pad.But in get_max_inline_xattr_value_size() function we count
the free space without pad.It cause some contents are moved to a block
even if it can be
stored in the inode.

Signed-off-by: liulei <lewis.liulei@huawei.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Tao Ma <boyu.mt@taobao.com>

diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 33331b4c21783b1e93169d9abef3e3e0441b5956..b8a07466144f62f837479b90431b26f793673797 100644 (file)
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -72,7 +72,7 @@ static int get_max_inline_xattr_value_size(struct inode *inode,
                entry = (struct ext4_xattr_entry *)
                        ((void *)raw_inode + EXT4_I(inode)->i_inline_off);
 
-               free += le32_to_cpu(entry->e_value_size);
+               free += EXT4_XATTR_SIZE(le32_to_cpu(entry->e_value_size));
                goto out;
        }