udf: Use i_size_read() in udf_adinicb_writepage()

We don't hold inode_lock in udf_adinicb_writepage() so use i_size_read()
to get i_size. This cannot cause real problems is i_size is guaranteed
to be small but let's be careful.

Signed-off-by: Jan Kara <jack@suse.cz>

diff --git a/fs/udf/file.c b/fs/udf/file.c
index e06d2c15749a50027757eef97c667e2352e29714..356c2bf148a5d0932f3813ee91966902ee633dbf 100644 (file)
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -76,7 +76,8 @@ static int udf_adinicb_writepage(struct page *page,
        BUG_ON(!PageLocked(page));
 
        kaddr = kmap_atomic(page);
-       memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr, kaddr, inode->i_size);
+       memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr, kaddr,
+               i_size_read(inode));
        SetPageUptodate(page);
        kunmap_atomic(kaddr);
        mark_inode_dirty(inode);