The patch titled
Subject: mm, slab: remove unnecessary unlikely()
has been removed from the -mm tree. Its filename was
mm-slab-remove-unnecessary-unlikely.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Yangtao Li <tiny.windzz@xxxxxxxxx>
Subject: mm, slab: remove unnecessary unlikely()
WARN_ON() already contains an unlikely(), so it's not necessary to use
unlikely.
Also change WARN_ON() back to WARN_ON_ONCE() to avoid potentially
spamming dmesg with user-triggerable large allocations.
[akpm@xxxxxxxxxxxxxxxxxxxx: s/WARN_ON/WARN_ON_ONCE/, per Vlastimil]
Link: http://lkml.kernel.org/r/20181104125028.3572-1-tiny.windzz@xxxxxxxxx
Signed-off-by: Yangtao Li <tiny.windzz@xxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/slab_common.c~mm-slab-remove-unnecessary-unlikely
+++ a/mm/slab_common.c
@@ -1029,10 +1029,8 @@ struct kmem_cache *kmalloc_slab(size_t s
index = size_index[size_index_elem(size)];
} else {
- if (unlikely(size > KMALLOC_MAX_CACHE_SIZE)) {
- WARN_ON(1);
+ if (WARN_ON_ONCE(size > KMALLOC_MAX_CACHE_SIZE))
return NULL;
- }
index = fls(size - 1);
}
_
Patches currently in -mm which might be from tiny.windzz@xxxxxxxxx are
async-remove-some-duplicated-includes.patch
signal-remove-some-duplicated-includes.patch
