git: fd18dc70ceda - stable/12 - mbuf: Add sysctl flag CTLFLAG_TUN to loader tunables

From: Zhenlei Huang <zlei_at_FreeBSD.org>
Date: Thu, 12 Oct 2023 10:12:32 UTC
The branch stable/12 has been updated by zlei:

URL: https://cgit.FreeBSD.org/src/commit/?id=fd18dc70ceda596b1007f1ec81e86c03a3b334a8

commit fd18dc70ceda596b1007f1ec81e86c03a3b334a8
Author:     Zhenlei Huang <zlei@FreeBSD.org>
AuthorDate: 2023-10-09 10:30:22 +0000
Commit:     Zhenlei Huang <zlei@FreeBSD.org>
CommitDate: 2023-10-12 10:09:39 +0000

    mbuf: Add sysctl flag CTLFLAG_TUN to loader tunables
    
    The following sysctl variables are actually loader tunables. Add sysctl
    flag CTLFLAG_TUN to them so that `sysctl -T` will report them correctly.
    
     1. kern.ipc.nmbclusters
     2. kern.ipc.nmbjumbop
     3. kern.ipc.nmbjumbo9
     4. kern.ipc.nmbjumbo16
     5. kern.ipc.nmbufs
    
    No functional change intended.
    
    Reviewed by:    kib, imp
    MFC after:      3 days
    Differential Revision:  https://reviews.freebsd.org/D42113
    
    (cherry picked from commit 6a88498e53b24d870e066c2a94910ad23dd355eb)
    (cherry picked from commit b1456fd6209474410c031e5e82455588e2b656c0)
    (cherry picked from commit 0007ba082c3353f0c545e5dcf328ce30d74c5ab7)
---
 sys/kern/kern_mbuf.c | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/sys/kern/kern_mbuf.c b/sys/kern/kern_mbuf.c
index d9a7f30d6557..0130f8f2a324 100644
--- a/sys/kern/kern_mbuf.c
+++ b/sys/kern/kern_mbuf.c
@@ -176,8 +176,9 @@ sysctl_nmbclusters(SYSCTL_HANDLER_ARGS)
 	}
 	return (error);
 }
-SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbclusters, CTLTYPE_INT|CTLFLAG_RW,
-&nmbclusters, 0, sysctl_nmbclusters, "IU",
+SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbclusters,
+    CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NOFETCH,
+    &nmbclusters, 0, sysctl_nmbclusters, "IU",
     "Maximum number of mbuf clusters allowed");
 
 static int
@@ -197,8 +198,9 @@ sysctl_nmbjumbop(SYSCTL_HANDLER_ARGS)
 	}
 	return (error);
 }
-SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbop, CTLTYPE_INT|CTLFLAG_RW,
-&nmbjumbop, 0, sysctl_nmbjumbop, "IU",
+SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbop,
+    CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NOFETCH,
+    &nmbjumbop, 0, sysctl_nmbjumbop, "IU",
     "Maximum number of mbuf page size jumbo clusters allowed");
 
 static int
@@ -218,8 +220,9 @@ sysctl_nmbjumbo9(SYSCTL_HANDLER_ARGS)
 	}
 	return (error);
 }
-SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbo9, CTLTYPE_INT|CTLFLAG_RW,
-&nmbjumbo9, 0, sysctl_nmbjumbo9, "IU",
+SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbo9,
+    CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NOFETCH,
+    &nmbjumbo9, 0, sysctl_nmbjumbo9, "IU",
     "Maximum number of mbuf 9k jumbo clusters allowed");
 
 static int
@@ -239,8 +242,9 @@ sysctl_nmbjumbo16(SYSCTL_HANDLER_ARGS)
 	}
 	return (error);
 }
-SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbo16, CTLTYPE_INT|CTLFLAG_RW,
-&nmbjumbo16, 0, sysctl_nmbjumbo16, "IU",
+SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbjumbo16,
+    CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NOFETCH,
+    &nmbjumbo16, 0, sysctl_nmbjumbo16, "IU",
     "Maximum number of mbuf 16k jumbo clusters allowed");
 
 static int
@@ -260,8 +264,9 @@ sysctl_nmbufs(SYSCTL_HANDLER_ARGS)
 	}
 	return (error);
 }
-SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbufs, CTLTYPE_INT|CTLFLAG_RW,
-&nmbufs, 0, sysctl_nmbufs, "IU",
+SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbufs,
+    CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NOFETCH,
+    &nmbufs, 0, sysctl_nmbufs, "IU",
     "Maximum number of mbufs allowed");
 
 /*