erofs: update comments in inode.c

As Christoph suggested [1], update them all.

[1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/Reported-by: NChristoph Hellwig <hch@infradead.org>
Signed-off-by: NGao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-12-gaoxiang25@huawei.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

fs/erofs/inode.c

@@ -147,7 +147,7 @@ static int fill_inline_data(struct inode *inode, void *data,
 	if (vi->datalayout != EROFS_INODE_FLAT_INLINE)
 		return 0;
 
-	/* fast symlink (following ext4) */
+	/* fast symlink */
 	if (S_ISLNK(inode->i_mode) && inode->i_size < PAGE_SIZE) {
 		char *lnk = erofs_kmalloc(sbi, inode->i_size + 1, GFP_KERNEL);
 
@@ -156,7 +156,7 @@ static int fill_inline_data(struct inode *inode, void *data,
 
 		m_pofs += vi->inode_isize + vi->xattr_isize;
 
-		/* inline symlink data shouldn't across page boundary as well */
+		/* inline symlink data shouldn't cross page boundary as well */
 		if (m_pofs + inode->i_size > PAGE_SIZE) {
 			kfree(lnk);
 			errln("inline data cross block boundary @ nid %llu",
@@ -165,7 +165,6 @@ static int fill_inline_data(struct inode *inode, void *data,
 			return -EFSCORRUPTED;
 		}
 
-		/* get in-page inline data */
 		memcpy(lnk, data + m_pofs, inode->i_size);
 		lnk[inode->i_size] = '\0';