diff options
| -rw-r--r-- | mm/vmalloc.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 46aab4dbf618..04f5e320e744 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -522,13 +522,24 @@ static void __purge_vmap_area_lazy(unsigned long *start, unsigned long *end, } /* + * Kick off a purge of the outstanding lazy areas. Don't bother if somebody + * is already purging. + */ +static void try_purge_vmap_area_lazy(void) +{ + unsigned long start = ULONG_MAX, end = 0; + + __purge_vmap_area_lazy(&start, &end, 0, 0); +} + +/* * Kick off a purge of the outstanding lazy areas. */ static void purge_vmap_area_lazy(void) { unsigned long start = ULONG_MAX, end = 0; - __purge_vmap_area_lazy(&start, &end, 0, 0); + __purge_vmap_area_lazy(&start, &end, 1, 0); } /* @@ -539,7 +550,7 @@ static void free_unmap_vmap_area(struct vmap_area *va) va->flags |= VM_LAZY_FREE; atomic_add((va->va_end - va->va_start) >> PAGE_SHIFT, &vmap_lazy_nr); if (unlikely(atomic_read(&vmap_lazy_nr) > lazy_max_pages())) - purge_vmap_area_lazy(); + try_purge_vmap_area_lazy(); } static struct vmap_area *find_vmap_area(unsigned long addr) |