git: 54d1d527c8ed - stable/15 - pwait: Avoid calling getpid(2) for each proc.

From: Dag-Erling Smørgrav <des_at_FreeBSD.org>
Date: Thu, 30 Oct 2025 10:37:57 UTC
The branch stable/15 has been updated by des:

URL: https://cgit.FreeBSD.org/src/commit/?id=54d1d527c8edf1e6819af7aadae744095116a27d

commit 54d1d527c8edf1e6819af7aadae744095116a27d
Author:     Bryan Drewery <bdrewery@FreeBSD.org>
AuthorDate: 2025-10-10 18:00:35 +0000
Commit:     Dag-Erling Smørgrav <des@FreeBSD.org>
CommitDate: 2025-10-30 10:37:35 +0000

    pwait: Avoid calling getpid(2) for each proc.
    
    (cherry picked from commit ab4abce6c2c2091a3b9ea1f38cbef94ee7a68090)
---
 bin/pwait/pwait.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/bin/pwait/pwait.c b/bin/pwait/pwait.c
index a78c0bb84ca8..27f4c8e9858d 100644
--- a/bin/pwait/pwait.c
+++ b/bin/pwait/pwait.c
@@ -64,6 +64,7 @@ main(int argc, char *argv[])
 	char *end, *s;
 	double timeout;
 	long pid;
+	pid_t mypid;
 	int i, kq, n, nleft, opt, status;
 	bool oflag, tflag, verbose;
 
@@ -137,6 +138,7 @@ main(int argc, char *argv[])
 		err(EX_OSERR, "malloc");
 	}
 	nleft = 0;
+	mypid = getpid();
 	for (n = 0; n < argc; n++) {
 		s = argv[n];
 		/* Undocumented Solaris compat */
@@ -149,7 +151,7 @@ main(int argc, char *argv[])
 			warnx("%s: bad process id", s);
 			continue;
 		}
-		if (pid == getpid()) {
+		if (pid == mypid) {
 			warnx("%s: skipping my own pid", s);
 			continue;
 		}