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tcp: Add CTLFLAG_VNET flag to some sysctls

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The two sysctls net.inet.tcp.hostcache.list and net.inet.tcp.hostcache.histo
are readonly and are to operate hostcache of vnet jails. Add CTLFLAG_VNET
flag to them since they are per-vnet sysctls.

This change does not have any impact on reading the two sysctls, but
`sysctl -ANV net.inet.tcp.hostcache` will report them correctly.

Reviewed by:	tuexen, #transport, #network
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D52693

(cherry picked from commit b1f96169cfb50a7b65aee115b2c9ad2f00797bbf)
(cherry picked from commit 032918dfd1)
This commit is contained in:
Zhenlei Huang 2025-09-24 09:16:13 +08:00 committed by Franco Fichtner
parent 08f2364212
commit 3e81e4d709
1 changed files with 2 additions and 2 deletions
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4
sys/netinet/tcp_hostcache.c
View file

@ -193,12 +193,12 @@ SYSCTL_INT(_net_inet_tcp_hostcache, OID_AUTO, purge, CTLFLAG_VNET | CTLFLAG_RW,
"Expire all entries on next purge run");
SYSCTL_PROC(_net_inet_tcp_hostcache, OID_AUTO, list,
CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_MPSAFE,
CTLFLAG_VNET | CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_MPSAFE,
0, 0, sysctl_tcp_hc_list, "A",
"List of all hostcache entries");
SYSCTL_PROC(_net_inet_tcp_hostcache, OID_AUTO, histo,
CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_MPSAFE,
CTLFLAG_VNET | CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_MPSAFE,
0, 0, sysctl_tcp_hc_histo, "A",
"Print a histogram of hostcache hashbucket utilization");