Date: Thu, 14 Aug 2025 21:14:16 GMT From: Mark Johnston <markj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 1e58eb141b9b - stable/13 - vm_pageout: Disallow invalid values for act_scan_laundry_weight Message-ID: <202508142114.57ELEGDn061972@gitrepo.freebsd.org>
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The branch stable/13 has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=1e58eb141b9b391fe3953032a4c225f3f15eac4a commit 1e58eb141b9b391fe3953032a4c225f3f15eac4a Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2025-04-18 17:31:27 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2025-08-14 21:11:11 +0000 vm_pageout: Disallow invalid values for act_scan_laundry_weight PR: 234167 MFC after: 2 weeks (cherry picked from commit d8b03c5904faff84656d3a84a25c2b37bcbf8075) --- sys/vm/vm_pageout.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/sys/vm/vm_pageout.c b/sys/vm/vm_pageout.c index 228764ea0aae..54affafedc72 100644 --- a/sys/vm/vm_pageout.c +++ b/sys/vm/vm_pageout.c @@ -185,8 +185,23 @@ SYSCTL_INT(_vm, OID_AUTO, pageout_oom_seq, "back-to-back calls to oom detector to start OOM"); static int act_scan_laundry_weight = 3; -SYSCTL_INT(_vm, OID_AUTO, act_scan_laundry_weight, CTLFLAG_RWTUN, - &act_scan_laundry_weight, 0, + +static int +sysctl_act_scan_laundry_weight(SYSCTL_HANDLER_ARGS) +{ + int error, newval; + + newval = act_scan_laundry_weight; + error = sysctl_handle_int(oidp, &newval, 0, req); + if (error || req->newptr == NULL) + return (error); + if (newval < 1) + return (EINVAL); + act_scan_laundry_weight = newval; + return (0); +} +SYSCTL_PROC(_vm, OID_AUTO, act_scan_laundry_weight, CTLFLAG_RWTUN | CTLTYPE_INT, + &act_scan_laundry_weight, 0, sysctl_act_scan_laundry_weight, "I", "weight given to clean vs. dirty pages in active queue scans"); static u_int vm_background_launder_rate = 4096;
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