sleep_finish() already pulls in curproc and caches it in p. So just pass
that to sleep_signal_check() and save one extra curproc call.

-- 
:wq Claudio

Index: kern_synch.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_synch.c,v
diff -u -p -r1.205 kern_synch.c
--- kern_synch.c	3 Jun 2024 12:48:25 -0000	1.205
+++ kern_synch.c	23 Jul 2024 08:29:39 -0000
@@ -62,7 +62,7 @@
 #include <sys/ktrace.h>
 #endif
 
-int	sleep_signal_check(void);
+int	sleep_signal_check(struct proc *);
 int	thrsleep(struct proc *, struct sys___thrsleep_args *);
 int	thrsleep_unlock(void *);
 
@@ -385,7 +385,7 @@ sleep_finish(int timo, int do_sleep)
 		 * we must be ready for sleep when sleep_signal_check() is
 		 * called.
 		 */
-		if ((error = sleep_signal_check()) != 0) {
+		if ((error = sleep_signal_check(p)) != 0) {
 			catch = 0;
 			do_sleep = 0;
 		}
@@ -438,7 +438,7 @@ sleep_finish(int timo, int do_sleep)
 
 	/* Check if thread was woken up because of a unwind or signal */
 	if (catch != 0)
-		error = sleep_signal_check();
+		error = sleep_signal_check(p);
 
 	/* Signal errors are higher priority than timeouts. */
 	if (error == 0 && error1 != 0)
@@ -451,9 +451,8 @@ sleep_finish(int timo, int do_sleep)
  * Check and handle signals and suspensions around a sleep cycle.
  */
 int
-sleep_signal_check(void)
+sleep_signal_check(struct proc *p)
 {
-	struct proc *p = curproc;
 	struct sigctx ctx;
 	int err, sig;