1 file changed, 7 insertions, 12 deletions

diff --git a/source/ui-ssdiff.c b/source/ui-ssdiff.c
index 8651ce7..759a77b 100644
--- a/source/ui-ssdiff.c
+++ b/source/ui-ssdiff.c
@@ -33,8 +33,7 @@ static struct deferred_line *deferred_new, *deferred_new_last;
 /*
  * The table is reused by every comparison and nothing clears it in between,
  * because the fill in longest_common_subsequence works back from the far
- * corner and writes every cell it goes on to read. Clearing it for each pair
- * of lines cost more than the comparison it was preparing for.
+ * corner and writes every cell it goes on to read.
  */
 static void create_lcs_table(void)
 {
@@ -107,9 +106,8 @@ static char *longest_common_subsequence(const char *old_line,
 }
 
 /*
- * The line with its tabs expanded, which the caller owns. Appending as the
- * line is walked replaces a loop that rescanned the rest of the input at every
- * tab, which made a tab heavy line quadratic in its own length.
+ * The line with its tabs expanded, which the caller owns. Built in one
+ * forward pass so a tab heavy line stays linear in its own length.
  */
 static char *expand_tabs(const char *line)
 {
@@ -135,9 +133,8 @@ static void flush_run(struct strbuf *run)
 }
 
 /*
- * A stretch that the other side does not share is escaped in one call because
- * escaping a character at a time sent every character of every changed line
- * through the output path on its own, which dominated this page.
+ * A stretch the other side does not share is escaped in one call, so a
+ * changed line does not go through the output path a byte at a time.
  */
 static void print_line_with_lcs(const char *class, const char *line,
 				const char *lcs)
@@ -397,8 +394,7 @@ void cgit_ssdiff_line_cb(char *line, int len)
 	}
 
 	if (line[0] == ' ') {
-		if (deferred_old || deferred_new)
-			print_deferred_lines();
+		print_deferred_lines();
 		print_row("ctx", current_old_line, line,
 			  current_new_line, line, 0);
 		current_old_line += 1;
@@ -438,7 +434,6 @@ void cgit_ssdiff_header_end(void)
 
 void cgit_ssdiff_footer(void)
 {
-	if (deferred_old || deferred_new)
-		print_deferred_lines();
+	print_deferred_lines();
 	html("<tr><td class='foot' colspan='4'></td></tr>\n");
 }