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dkim=pass header.d=oracle.com header.s=corp-2021-07-09 header.b=U8zdbdkL; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=cvWRu3nq; spf=none (imf19.hostedemail.com: domain of liam.howlett@oracle.com has no SPF policy when checking 205.220.177.32) smtp.mailfrom=liam.howlett@oracle.com; dmarc=pass (policy=none) header.from=oracle.com X-Rspamd-Server: rspam09 X-HE-Tag: 1650985585-830507 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: "Liam R. Howlett" Add functions to get the number of allocations, and total allocations from a kmem_cache. Also add a function to get the allocated size and a way to zero the total allocations. Signed-off-by: Liam R. Howlett --- tools/testing/radix-tree/linux.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/tools/testing/radix-tree/linux.c b/tools/testing/radix-tree/li= nux.c index 586fef78dbf7..e64741ef89ef 100644 --- a/tools/testing/radix-tree/linux.c +++ b/tools/testing/radix-tree/linux.c @@ -24,6 +24,8 @@ struct kmem_cache { void *objs; void (*ctor)(void *); unsigned int non_kernel; + unsigned long nr_allocated; + unsigned long nr_tallocated; }; =20 void kmem_cache_set_non_kernel(struct kmem_cache *cachep, unsigned int val= ) @@ -31,6 +33,26 @@ void kmem_cache_set_non_kernel(struct kmem_cache *cachep= , unsigned int val) cachep->non_kernel =3D val; } =20 +unsigned long kmem_cache_get_alloc(struct kmem_cache *cachep) +{ + return cachep->size * cachep->nr_allocated; +} + +unsigned long kmem_cache_nr_allocated(struct kmem_cache *cachep) +{ + return cachep->nr_allocated; +} + +unsigned long kmem_cache_nr_tallocated(struct kmem_cache *cachep) +{ + return cachep->nr_tallocated; +} + +void kmem_cache_zero_nr_tallocated(struct kmem_cache *cachep) +{ + cachep->nr_tallocated =3D 0; +} + void *kmem_cache_alloc(struct kmem_cache *cachep, int gfp) { void *p; @@ -62,7 +84,9 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, int gfp= ) memset(p, 0, cachep->size); } =20 + uatomic_inc(&cachep->nr_allocated); uatomic_inc(&nr_allocated); + uatomic_inc(&cachep->nr_tallocated); if (kmalloc_verbose) printf("Allocating %p from slab\n", p); return p; @@ -72,6 +96,7 @@ void kmem_cache_free(struct kmem_cache *cachep, void *obj= p) { assert(objp); uatomic_dec(&nr_allocated); + uatomic_dec(&cachep->nr_allocated); if (kmalloc_verbose) printf("Freeing %p to slab\n", objp); pthread_mutex_lock(&cachep->lock); @@ -97,6 +122,8 @@ kmem_cache_create(const char *name, unsigned int size, u= nsigned int align, ret->size =3D size; ret->align =3D align; ret->nr_objs =3D 0; + ret->nr_allocated =3D 0; + ret->nr_tallocated =3D 0; ret->objs =3D NULL; ret->ctor =3D ctor; ret->non_kernel =3D 0; --=20 2.35.1