Index: head/sys/riscv/riscv/pmap.c =================================================================== --- head/sys/riscv/riscv/pmap.c +++ head/sys/riscv/riscv/pmap.c @@ -3950,12 +3950,12 @@ pt_entry_t *l3, l3e; vm_paddr_t pa; vm_offset_t va; - int md_gen, pvh_gen, ret; + int cleared, md_gen, not_cleared, pvh_gen; KASSERT((m->oflags & VPO_UNMANAGED) == 0, ("pmap_ts_referenced: page %p is not managed", m)); SLIST_INIT(&free); - ret = 0; + cleared = 0; pa = VM_PAGE_TO_PHYS(m); pvh = (m->flags & PG_FICTITIOUS) != 0 ? &pv_dummy : pa_to_pvh(pa); @@ -3963,6 +3963,7 @@ rw_rlock(&pvh_global_lock); rw_wlock(lock); retry: + not_cleared = 0; if ((pvf = TAILQ_FIRST(&pvh->pv_list)) == NULL) goto small_mappings; pv = pvf; @@ -4013,8 +4014,9 @@ (l2e & PTE_SW_WIRED) == 0) { pmap_clear_bits(l2, PTE_A); pmap_invalidate_page(pmap, va); - } - ret++; + cleared++; + } else + not_cleared++; } PMAP_UNLOCK(pmap); /* Rotate the PV list if it has more than one entry. */ @@ -4023,7 +4025,7 @@ TAILQ_INSERT_TAIL(&pvh->pv_list, pv, pv_next); pvh->pv_gen++; } - if (ret >= PMAP_TS_REFERENCED_MAX) + if (cleared + not_cleared >= PMAP_TS_REFERENCED_MAX) goto out; } while ((pv = TAILQ_FIRST(&pvh->pv_list)) != pvf); small_mappings: @@ -4062,8 +4064,9 @@ */ pmap_clear_bits(l3, PTE_A); pmap_invalidate_page(pmap, pv->pv_va); - } - ret++; + cleared++; + } else + not_cleared++; } PMAP_UNLOCK(pmap); /* Rotate the PV list if it has more than one entry. */ @@ -4072,13 +4075,13 @@ TAILQ_INSERT_TAIL(&m->md.pv_list, pv, pv_next); m->md.pv_gen++; } - } while ((pv = TAILQ_FIRST(&m->md.pv_list)) != pvf && ret < - PMAP_TS_REFERENCED_MAX); + } while ((pv = TAILQ_FIRST(&m->md.pv_list)) != pvf && cleared + + not_cleared < PMAP_TS_REFERENCED_MAX); out: rw_wunlock(lock); rw_runlock(&pvh_global_lock); vm_page_free_pages_toq(&free, false); - return (ret); + return (cleared + not_cleared); } /*