It only does a might_sleep_if(GFP_RECLAIM) check, which is already
covered by the might_alloc() in slab_pre_alloc_hook(). And all callers
of cache_alloc_debugcheck_before() call that beforehand already.
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Roman Gushchin <roman.gushchin@xxxxxxxxx>
Cc: linux-mm@xxxxxxxxx
---
mm/slab.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/mm/slab.c b/mm/slab.c
index b04e40078bdf..75779ac5f5ba 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2973,12 +2973,6 @@ static void *cache_alloc_refill(struct kmem_cache *cachep, gfp_t flags)
return ac->entry[--ac->avail];
}
-static inline void cache_alloc_debugcheck_before(struct kmem_cache *cachep,
- gfp_t flags)
-{
- might_sleep_if(gfpflags_allow_blocking(flags));
-}
-
#if DEBUG
static void *cache_alloc_debugcheck_after(struct kmem_cache *cachep,
gfp_t flags, void *objp, unsigned long caller)
@@ -3219,7 +3213,6 @@ slab_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid, size_t orig_
if (unlikely(ptr))
goto out_hooks;
- cache_alloc_debugcheck_before(cachep, flags);
local_irq_save(save_flags);
if (nodeid == NUMA_NO_NODE)
@@ -3304,7 +3297,6 @@ slab_alloc(struct kmem_cache *cachep, struct list_lru *lru, gfp_t flags,
if (unlikely(objp))
goto out;
- cache_alloc_debugcheck_before(cachep, flags);
local_irq_save(save_flags);
objp = __do_cache_alloc(cachep, flags);
local_irq_restore(save_flags);
@@ -3541,8 +3533,6 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
if (!s)
return 0;
- cache_alloc_debugcheck_before(s, flags);
-
local_irq_disable();
for (i = 0; i < size; i++) {
void *objp = kfence_alloc(s, s->object_size, flags) ?: __do_cache_alloc(s, flags);
--
2.36.0
