git: 5b789e0c92a7 - releng/13.0 - pf: Initialize the table entry zone limit at initialization time

The branch releng/13.0 has been updated by emaste:

URL: https://cgit.FreeBSD.org/src/commit/?id=5b789e0c92a7c363b36111b1f75519f2acd21f97

commit 5b789e0c92a7c363b36111b1f75519f2acd21f97
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2022-04-05 23:26:02 +0000
Commit:     Ed Maste <emaste@FreeBSD.org>
CommitDate: 2022-04-05 23:26:02 +0000

    pf: Initialize the table entry zone limit at initialization time
    
    The limit may later be updated by the "set limit" directive in pf.conf.
    UMA does not permit a limit to be set on a zone after any items have
    been allocated from a zone.
    
    Other UMA zones used by pf do not appear to be susceptible to this
    problem: they either set a limit at zone creation time or never set one
    at all.
    
    PR:             260406
    Reviewed by:    kp
    Sponsored by:   The FreeBSD Foundation
    
    (cherry picked from commit 7d1ab866911a2b29e041d64bc83a93638533f957)
    (cherry picked from commit 1487f84223ce1341ebdfc87e50fbcddedc6d1de8)
    
    Approved by:    so
    Security:       FreeBSD-EN-22:15.pf
---
 sys/netpfil/pf/pf_table.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/netpfil/pf/pf_table.c b/sys/netpfil/pf/pf_table.c
index af2f614c9e8c..6d81f57096be 100644
--- a/sys/netpfil/pf/pf_table.c
+++ b/sys/netpfil/pf/pf_table.c
@@ -209,6 +209,7 @@ pfr_initialize(void)
 	V_pfr_kentry_z = uma_zcreate("pf table entries",
 	    sizeof(struct pfr_kentry), NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,
 	    0);
+	uma_zone_set_max(V_pfr_kentry_z, PFR_KENTRY_HIWAT);
 	V_pf_limits[PF_LIMIT_TABLE_ENTRIES].zone = V_pfr_kentry_z;
 	V_pf_limits[PF_LIMIT_TABLE_ENTRIES].limit = PFR_KENTRY_HIWAT;
 }