diff options
Diffstat (limited to 'mm/gup_benchmark.c')
| -rw-r--r-- | mm/gup_benchmark.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/gup_benchmark.c b/mm/gup_benchmark.c index 5c8e2abeaa15..0f44759486e2 100644 --- a/mm/gup_benchmark.c +++ b/mm/gup_benchmark.c @@ -23,7 +23,7 @@ static int __gup_benchmark_ioctl(unsigned int cmd, struct page **pages; nr_pages = gup->size / PAGE_SIZE; - pages = kvmalloc(sizeof(void *) * nr_pages, GFP_KERNEL); + pages = kvzalloc(sizeof(void *) * nr_pages, GFP_KERNEL); if (!pages) return -ENOMEM; @@ -41,6 +41,8 @@ static int __gup_benchmark_ioctl(unsigned int cmd, } nr = get_user_pages_fast(addr, nr, gup->flags & 1, pages + i); + if (nr <= 0) + break; i += nr; } end_time = ktime_get(); |