Messages in this thread Patch in this message | | | From | Li RongQing <> | Subject | [PATCH] mm, slab: remove unneed check in cpuup_canceled | Date | Thu, 21 Mar 2019 17:09:13 +0800 |
| |
nc is a member of percpu allocation memory, and impossible NULL
Signed-off-by: Li RongQing <lirongqing@baidu.com> --- mm/slab.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/mm/slab.c b/mm/slab.c index 28652e4218e0..f1420e14875a 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -990,10 +990,8 @@ static void cpuup_canceled(long cpu) /* cpu is dead; no one can alloc from it. */ nc = per_cpu_ptr(cachep->cpu_cache, cpu); - if (nc) { - free_block(cachep, nc->entry, nc->avail, node, &list); - nc->avail = 0; - } + free_block(cachep, nc->entry, nc->avail, node, &list); + nc->avail = 0; if (!cpumask_empty(mask)) { spin_unlock_irq(&n->list_lock); -- 2.16.2
| |