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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);
}
/*

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