diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index b4271529414774010284cb84e12a90252c548e4b..5b228b785377bacb8afbde1a65db2fb25e22c036 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -24,6 +24,7 @@ enum stat_item { ALLOC_FROM_PARTIAL, /* Cpu slab acquired from partial list */ ALLOC_SLAB, /* Cpu slab acquired from page allocator */ ALLOC_REFILL, /* Refill cpu slab from slab freelist */ + ALLOC_NODE_MISMATCH, /* Switching cpu slab */ FREE_SLAB, /* Slab freed to the page allocator */ CPUSLAB_FLUSH, /* Abandoning of the cpu slab */ DEACTIVATE_FULL, /* Cpu slab was full when deactivated */ diff --git a/mm/slub.c b/mm/slub.c index 41a15c1d8068c50781e94ac7fb72620289cb525a..e00b7732f5561ab3adac1fa7871aafc94cff415b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1966,6 +1966,7 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, goto new_slab; if (unlikely(!node_match(c, node))) { + stat(s, ALLOC_NODE_MISMATCH); deactivate_slab(s, c); goto new_slab; } @@ -4671,6 +4672,7 @@ STAT_ATTR(FREE_REMOVE_PARTIAL, free_remove_partial); STAT_ATTR(ALLOC_FROM_PARTIAL, alloc_from_partial); STAT_ATTR(ALLOC_SLAB, alloc_slab); STAT_ATTR(ALLOC_REFILL, alloc_refill); +STAT_ATTR(ALLOC_NODE_MISMATCH, alloc_node_mismatch); STAT_ATTR(FREE_SLAB, free_slab); STAT_ATTR(CPUSLAB_FLUSH, cpuslab_flush); STAT_ATTR(DEACTIVATE_FULL, deactivate_full); @@ -4730,6 +4732,7 @@ static struct attribute *slab_attrs[] = { &alloc_from_partial_attr.attr, &alloc_slab_attr.attr, &alloc_refill_attr.attr, + &alloc_node_mismatch_attr.attr, &free_slab_attr.attr, &cpuslab_flush_attr.attr, &deactivate_full_attr.attr,