git: 8c3fa20b9dd8 - stable/12 - Skip the vm.pmap.kernel_maps sysctl by default.

[Mark Johnston]

The branch stable/12 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=8c3fa20b9dd81740a18184d205bf8bdc34ba5373

commit 8c3fa20b9dd81740a18184d205bf8bdc34ba5373
Author:     John Baldwin <jhb at FreeBSD.org>
AuthorDate: 2020-12-18 20:41:23 +0000
Commit:     Mark Johnston <markj at FreeBSD.org>
CommitDate: 2021-02-25 16:42:30 +0000

    Skip the vm.pmap.kernel_maps sysctl by default.
    
    This sysctl node can generate very verbose output, so don't trigger it
    for sysctl -a or sysctl vm.pmap.
    
    Reviewed by:    markj, kib
    Differential Revision:  https://reviews.freebsd.org/D27504
    
    (cherry picked from commit 1dce7d9e7eefead038610df6a8d6c86a0fdbebb8)
---
 sys/amd64/amd64/pmap.c | 2 +-
 sys/arm64/arm64/pmap.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c
index 4a4c50385ca2..876a77902eea 100644
--- a/sys/amd64/amd64/pmap.c
+++ b/sys/amd64/amd64/pmap.c
@@ -10412,7 +10412,7 @@ restart:
 	return (error);
 }
 SYSCTL_OID(_vm_pmap, OID_AUTO, kernel_maps,
-    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
+    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE | CTLFLAG_SKIP,
     NULL, 0, sysctl_kmaps, "A",
     "Dump kernel address layout");
 
diff --git a/sys/arm64/arm64/pmap.c b/sys/arm64/arm64/pmap.c
index e18e13701203..d74479a15ab0 100644
--- a/sys/arm64/arm64/pmap.c
+++ b/sys/arm64/arm64/pmap.c
@@ -6169,6 +6169,6 @@ sysctl_kmaps(SYSCTL_HANDLER_ARGS)
 	return (error);
 }
 SYSCTL_OID(_vm_pmap, OID_AUTO, kernel_maps,
-    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
+    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE | CTLFLAG_SKIP,
     NULL, 0, sysctl_kmaps, "A",
     "Dump kernel address layout");