The patch titled
lib/sort.c optimization
has been removed from the -mm tree. Its filename was
lib-sortc-optimization.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: lib/sort.c optimization
From: "Subbaiah Venkata" <kvsnaidu@xxxxxxxxxxxx>
Hello, I fixed and tested a small bug in lib/sort.c file, heap sort
function.
The fix avoids unnecessary swap of contents when i is 0 (saves few loads
and stores), which happens every time sort function is called. I felt the
fix is worth bringing it to your attention given the importance and
frequent use of the sort function.
Acked-by: Matt Mackall <mpm@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/sort.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN lib/sort.c~lib-sortc-optimization lib/sort.c
--- a/lib/sort.c~lib-sortc-optimization
+++ a/lib/sort.c
@@ -67,7 +67,7 @@ void sort(void *base, size_t num, size_t
}
/* sort */
- for (i = n - size; i >= 0; i -= size) {
+ for (i = n - size; i > 0; i -= size) {
swap(base, base + i, size);
for (r = 0; r * 2 + size < i; r = c) {
c = r * 2 + size;
_
Patches currently in -mm which might be from kvsnaidu@xxxxxxxxxxxx are
origin.patch
-
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