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| author |   Li RongQing <lirongqing@baidu.com> | 2019-05-13 17:16:25 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-14 09:47:45 -0700 |
| commit | 517f9f1ee5ed0a05d0f6f884f6d9b5c46ac5a810 (patch) | |
| tree | 4d697c043807115551b7598f81898b83be97f354 /mm/slab.c | |
| parent | slub: remove useless kmem_cache_debug() before remove_full() (diff) | |
| download | wireguard-linux-517f9f1ee5ed0a05d0f6f884f6d9b5c46ac5a810.tar.xz wireguard-linux-517f9f1ee5ed0a05d0f6f884f6d9b5c46ac5a810.zip | |
mm/slab.c: remove unneed check in cpuup_canceled
nc is a member of percpu allocation memory, and cannot be NULL.
Link: http://lkml.kernel.org/r/1553159353-5056-1-git-send-email-lirongqing@baidu.com
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slab.c')
| -rw-r--r-- | mm/slab.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/mm/slab.c b/mm/slab.c index e9eaa8fce231..da4068a95307 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); |