[merged mm-nonmm-stable] kernel-refactor-shorten-has_pending_signals.patch removed from -mm tree

The quilt patch titled
     Subject: kernel: refactor: shorten has_pending_signals
has been removed from the -mm tree.  Its filename was
     kernel-refactor-shorten-has_pending_signals.patch

This patch was dropped because it was merged into the mm-nonmm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Andrea Calabrese <[email protected]>
Subject: kernel: refactor: shorten has_pending_signals
Date: Wed, 20 May 2026 08:28:50 +0200

In has_pending_signals there was a switch/case used for optimizations. 
However, today's compilers perform loop unrolling efficiently, thus it is
not needed anymore.

Put i inside the for declaration so we do not risk its escape from the
scope.  Moreover, i starts now from 0 and counts up, as it is a more usual
pattern.

Link: https://lore.kernel.org/[email protected]
Signed-off-by: Andrea Calabrese <[email protected]>
Acked-by: Oleg Nesterov <[email protected]>
Cc: Adrian Huang <[email protected]>
Cc: Christian Brauner <[email protected]>
Cc: Marco Elver <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---

 kernel/signal.c |   26 ++++----------------------
 1 file changed, 4 insertions(+), 22 deletions(-)

--- a/kernel/signal.c~kernel-refactor-shorten-has_pending_signals
+++ a/kernel/signal.c
@@ -130,28 +130,10 @@ static bool sig_ignored(struct task_stru
  */
 static inline bool has_pending_signals(sigset_t *signal, sigset_t *blocked)
 {
-	unsigned long ready;
-	long i;
-
-	switch (_NSIG_WORDS) {
-	default:
-		for (i = _NSIG_WORDS, ready = 0; --i >= 0 ;)
-			ready |= signal->sig[i] &~ blocked->sig[i];
-		break;
-
-	case 4: ready  = signal->sig[3] &~ blocked->sig[3];
-		ready |= signal->sig[2] &~ blocked->sig[2];
-		ready |= signal->sig[1] &~ blocked->sig[1];
-		ready |= signal->sig[0] &~ blocked->sig[0];
-		break;
-
-	case 2: ready  = signal->sig[1] &~ blocked->sig[1];
-		ready |= signal->sig[0] &~ blocked->sig[0];
-		break;
-
-	case 1: ready  = signal->sig[0] &~ blocked->sig[0];
-	}
-	return ready !=	0;
+	unsigned long ready = 0;
+	for (long i = 0; i < _NSIG_WORDS; i++)
+		ready |= signal->sig[i] & ~blocked->sig[i];
+	return ready != 0;
 }
 
 #define PENDING(p,b) has_pending_signals(&(p)->signal, (b))
_

Patches currently in -mm which might be from [email protected] are