From nobody Mon Nov 1 00:45:57 2021 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 894B5182987E; Mon, 1 Nov 2021 00:46:00 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4HjDq93kG5z4d9s; Mon, 1 Nov 2021 00:45:57 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 5507827D18; Mon, 1 Nov 2021 00:45:57 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 1A10jvQV005109; Mon, 1 Nov 2021 00:45:57 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 1A10jvMU005108; Mon, 1 Nov 2021 00:45:57 GMT (envelope-from git) Date: Mon, 1 Nov 2021 00:45:57 GMT Message-Id: <202111010045.1A10jvMU005108@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Konstantin Belousov Subject: git: c54be5cfcf70 - stable/13 - Add vm.swap_objects sysctl List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-all@freebsd.org X-BeenThere: dev-commits-src-all@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: c54be5cfcf70953b8e0a8c1fcf9a6d5005516f55 Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=c54be5cfcf70953b8e0a8c1fcf9a6d5005516f55 commit c54be5cfcf70953b8e0a8c1fcf9a6d5005516f55 Author: Konstantin Belousov AuthorDate: 2021-07-13 10:27:36 +0000 Commit: Konstantin Belousov CommitDate: 2021-11-01 00:44:51 +0000 Add vm.swap_objects sysctl (cherry picked from commit 42812ccc969f174b3e5827c1c320b1738a1e0985) --- sys/vm/vm_object.c | 28 ++++++++++++++++++++++++---- 1 file changed, 24 insertions(+), 4 deletions(-) diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c index 533d1e37318e..addcf5f2c686 100644 --- a/sys/vm/vm_object.c +++ b/sys/vm/vm_object.c @@ -2471,7 +2471,7 @@ vm_object_busy_wait(vm_object_t obj, const char *wmesg) } static int -vm_object_list_handler(struct sysctl_req *req) +vm_object_list_handler(struct sysctl_req *req, bool swap_only) { struct kinfo_vmobject *kvo; char *fullpath, *freepath; @@ -2509,10 +2509,12 @@ vm_object_list_handler(struct sysctl_req *req) */ mtx_lock(&vm_object_list_mtx); TAILQ_FOREACH(obj, &vm_object_list, object_list) { - if (obj->type == OBJT_DEAD) + if (obj->type == OBJT_DEAD || + (swap_only && (obj->flags & (OBJ_ANON | OBJ_SWAP)) == 0)) continue; VM_OBJECT_RLOCK(obj); - if (obj->type == OBJT_DEAD) { + if (obj->type == OBJT_DEAD || + (swap_only && (obj->flags & (OBJ_ANON | OBJ_SWAP)) == 0)) { VM_OBJECT_RUNLOCK(obj); continue; } @@ -2592,13 +2594,31 @@ vm_object_list_handler(struct sysctl_req *req) static int sysctl_vm_object_list(SYSCTL_HANDLER_ARGS) { - return (vm_object_list_handler(req)); + return (vm_object_list_handler(req, false)); } SYSCTL_PROC(_vm, OID_AUTO, objects, CTLTYPE_STRUCT | CTLFLAG_RW | CTLFLAG_SKIP | CTLFLAG_MPSAFE, NULL, 0, sysctl_vm_object_list, "S,kinfo_vmobject", "List of VM objects"); +static int +sysctl_vm_object_list_swap(SYSCTL_HANDLER_ARGS) +{ + return (vm_object_list_handler(req, true)); +} + +/* + * This sysctl returns list of the anonymous or swap objects. Intent + * is to provide stripped optimized list useful to analyze swap use. + * Since technically non-swap (default) objects participate in the + * shadow chains, and are converted to swap type as needed by swap + * pager, we must report them. + */ +SYSCTL_PROC(_vm, OID_AUTO, swap_objects, + CTLTYPE_STRUCT | CTLFLAG_RW | CTLFLAG_SKIP | CTLFLAG_MPSAFE, NULL, 0, + sysctl_vm_object_list_swap, "S,kinfo_vmobject", + "List of swap VM objects"); + #include "opt_ddb.h" #ifdef DDB #include