Date: Fri, 22 Sep 2017 10:45:51 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r323919 - stable/11/sys/vm Message-ID: <201709221045.v8MAjppc087303@repo.freebsd.org>
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Author: kib Date: Fri Sep 22 10:45:51 2017 New Revision: 323919 URL: https://svnweb.freebsd.org/changeset/base/323919 Log: MFC r323616: Batch freeing of the pages in vm_object_page_remove(). Modified: stable/11/sys/vm/vm_object.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/vm/vm_object.c ============================================================================== --- stable/11/sys/vm/vm_object.c Fri Sep 22 08:27:27 2017 (r323918) +++ stable/11/sys/vm/vm_object.c Fri Sep 22 10:45:51 2017 (r323919) @@ -1960,6 +1960,7 @@ vm_object_page_remove(vm_object_t object, vm_pindex_t { vm_page_t p, next; struct mtx *mtx; + struct pglist pgl; VM_OBJECT_ASSERT_WLOCKED(object); KASSERT((object->flags & OBJ_UNMANAGED) == 0 || @@ -1968,6 +1969,7 @@ vm_object_page_remove(vm_object_t object, vm_pindex_t if (object->resident_page_count == 0) return; vm_object_pip_add(object, 1); + TAILQ_INIT(&pgl); again: p = vm_page_find_least(object, start); mtx = NULL; @@ -2019,10 +2021,13 @@ again: } if ((options & OBJPR_NOTMAPPED) == 0) pmap_remove_all(p); - vm_page_free(p); + p->flags &= ~PG_ZERO; + if (vm_page_free_prep(p, false)) + TAILQ_INSERT_TAIL(&pgl, p, listq); } if (mtx != NULL) mtx_unlock(mtx); + vm_page_free_phys_pglist(&pgl); vm_object_pip_wakeup(object); }
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