git: 5351d31bfcbb - stable/12 - pf: add a branch prediction to expire state check in pf_find_state

[Mateusz Guzik]

The branch stable/12 has been updated by mjg:

URL: https://cgit.FreeBSD.org/src/commit/?id=5351d31bfcbbd27ac0d505215871e69a46f74b17

commit 5351d31bfcbbd27ac0d505215871e69a46f74b17
Author:     Mateusz Guzik <mjg at FreeBSD.org>
AuthorDate: 2021-07-19 12:50:08 +0000
Commit:     Mateusz Guzik <mjg at FreeBSD.org>
CommitDate: 2021-07-25 07:06:27 +0000

    pf: add a branch prediction to expire state check in pf_find_state
    
    Reviewed by:    kp
    Sponsored by:   Rubicon Communications, LLC ("Netgate")
    
    (cherry picked from commit 144ec0713daa532342a298fd888a1656ae24a62d)
---
 sys/netpfil/pf/pf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/netpfil/pf/pf.c b/sys/netpfil/pf/pf.c
index 8e2fbcbda4c4..bbdd76c0dd07 100644
--- a/sys/netpfil/pf/pf.c
+++ b/sys/netpfil/pf/pf.c
@@ -1380,7 +1380,7 @@ pf_find_state(struct pfi_kkif *kif, struct pf_state_key_cmp *key, u_int dir)
 		if (s->kif == V_pfi_all || s->kif == kif) {
 			PF_STATE_LOCK(s);
 			PF_HASHROW_UNLOCK(kh);
-			if (s->timeout >= PFTM_MAX) {
+			if (__predict_false(s->timeout >= PFTM_MAX)) {
 				/*
 				 * State is either being processed by
 				 * pf_unlink_state() in an other thread, or