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From: "Liam R. Howlett" <Liam.Howlett@Oracle.com>
To: maple-tree@lists.infradead.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@google.com>, Song Liu <songliubraving@fb.com>,
	Davidlohr Bueso <dave@stgolabs.net>,
	"Paul E . McKenney" <paulmck@kernel.org>,
	Matthew Wilcox <willy@infradead.org>,
	Jerome Glisse <jglisse@redhat.com>,
	David Rientjes <rientjes@google.com>,
	Axel Rasmussen <axelrasmussen@google.com>,
	Suren Baghdasaryan <surenb@google.com>,
	Vlastimil Babka <vbabka@suse.cz>
Subject: [PATCH 04/28] radix tree test suite: Add keme_cache_alloc_bulk() support
Date: Thu, 10 Dec 2020 12:03:38 -0500	[thread overview]
Message-ID: <20201210170402.3468568-5-Liam.Howlett@Oracle.com> (raw)
In-Reply-To: <20201210170402.3468568-1-Liam.Howlett@Oracle.com>

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 tools/testing/radix-tree/linux.c      | 51 +++++++++++++++++++++++++++
 tools/testing/radix-tree/linux/slab.h |  1 +
 2 files changed, 52 insertions(+)

diff --git a/tools/testing/radix-tree/linux.c b/tools/testing/radix-tree/linux.c
index 380bbc0a48d6f..fb19a40ebb465 100644
--- a/tools/testing/radix-tree/linux.c
+++ b/tools/testing/radix-tree/linux.c
@@ -99,6 +99,57 @@ void kmem_cache_free_bulk(struct kmem_cache *cachep, size_t size, void **list)
 	for (int i = 0; i < size; i++)
 		kmem_cache_free(cachep, list[i]);
 }
+int kmem_cache_alloc_bulk(struct kmem_cache *cachep, gfp_t gfp, size_t size,
+			  void **p)
+{
+	size_t i;
+
+	if (kmalloc_verbose)
+		printk("Bulk alloc %lu\n", size);
+
+	if (!(gfp & __GFP_DIRECT_RECLAIM) && cachep->non_kernel < size)
+		return 0;
+
+	if (!(gfp & __GFP_DIRECT_RECLAIM))
+		cachep->non_kernel -= size;
+
+	pthread_mutex_lock(&cachep->lock);
+	if (cachep->nr_objs >= size) {
+		struct radix_tree_node *node = cachep->objs;
+
+		for (i = 0; i < size; i++) {
+			cachep->nr_objs--;
+			cachep->objs = node->parent;
+			p[i] = cachep->objs;
+		}
+		pthread_mutex_unlock(&cachep->lock);
+		node->parent = NULL;
+	} else {
+		pthread_mutex_unlock(&cachep->lock);
+		for (i = 0; i < size; i++) {
+			if (cachep->align) {
+				posix_memalign(&p[i], cachep->align,
+					       cachep->size * size);
+			} else {
+				p[i] = malloc(cachep->size * size);
+			}
+			if (cachep->ctor)
+				cachep->ctor(p[i]);
+			else if (gfp & __GFP_ZERO)
+				memset(p[i], 0, cachep->size);
+		}
+	}
+
+	for (i = 0; i < size; i++) {
+		uatomic_inc(&nr_allocated);
+		uatomic_inc(&nr_tallocated);
+		if (kmalloc_verbose)
+			printf("Allocating %p from slab\n", p[i]);
+	}
+
+	return size;
+}
+
 
 void *kmalloc(size_t size, gfp_t gfp)
 {
diff --git a/tools/testing/radix-tree/linux/slab.h b/tools/testing/radix-tree/linux/slab.h
index 53b79c15b3a22..ba42b8cc11d09 100644
--- a/tools/testing/radix-tree/linux/slab.h
+++ b/tools/testing/radix-tree/linux/slab.h
@@ -25,4 +25,5 @@ struct kmem_cache *kmem_cache_create(const char *name, unsigned int size,
 			void (*ctor)(void *));
 
 void kmem_cache_free_bulk(struct kmem_cache *cachep, size_t, void **);
+int kmem_cache_alloc_bulk(struct kmem_cache *cachep, gfp_t, size_t, void **);
 #endif		/* SLAB_H */
-- 
2.28.0


  parent reply	other threads:[~2020-12-10 18:21 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-10 17:03 [PATCH 00/28] RFC mm: Introducing the Maple Tree Liam R. Howlett
2020-12-10 17:03 ` [PATCH 01/28] radix tree test suite: Enhancements for " Liam R. Howlett
2020-12-10 17:03 ` [PATCH 02/28] radix tree test suite: Add support for fallthrough attribute Liam R. Howlett
2020-12-10 17:03 ` [PATCH 03/28] radix tree test suite: Add support for kmem_cache_free_bulk Liam R. Howlett
2020-12-10 17:03 ` Liam R. Howlett [this message]
2020-12-10 17:03 ` [PATCH 05/28] Maple Tree: Add new data structure Liam R. Howlett
2020-12-10 17:03 ` [PATCH 06/28] mm: Start tracking VMAs with maple tree Liam R. Howlett
2020-12-11 19:30   ` kernel test robot
2020-12-10 17:03 ` [PATCH 07/28] mm/mmap: Introduce unlock_range() for code cleanup Liam R. Howlett
2020-12-10 17:03 ` [PATCH 08/28] mm/mmap: Change find_vma() to use the maple tree Liam R. Howlett
2020-12-10 17:03 ` [PATCH 09/28] mm/mmap: Change find_vma_prev() to use " Liam R. Howlett
2020-12-10 17:03 ` [PATCH 10/28] mm/mmap: Change unmapped_area and unmapped_area_topdown " Liam R. Howlett
2020-12-10 17:03 ` [PATCH 11/28] kernel/fork: Convert dup_mmap " Liam R. Howlett
2020-12-10 17:03 ` [PATCH 12/28] mm: Remove rb tree Liam R. Howlett
2020-12-10 17:03 ` [PATCH 13/28] mm/gup: Expose mm_populate_vma() for use when the vma is known Liam R. Howlett
2020-12-10 21:03   ` kernel test robot
2020-12-10 17:03 ` [PATCH 14/28] mm/mmap: Change do_brk_flags() to expand existing VMA and add do_brk_munmap() Liam R. Howlett
2020-12-10 17:03 ` [PATCH 15/28] mm/mmap: Change vm_brk_flags() to use mm_populate_vma() Liam R. Howlett
2020-12-10 17:03 ` [PATCH 16/28] mm: Move find_vma_intersection to mmap.c and change implementation to maple tree Liam R. Howlett
2020-12-10 17:03 ` [PATCH 17/28] mm/mmap: Change mmap_region to use maple tree state Liam R. Howlett
2020-12-10 17:03 ` [PATCH 18/28] mm/mmap: Drop munmap_vma_range() Liam R. Howlett
2020-12-10 17:03 ` [PATCH 19/28] mm: Remove vmacache Liam R. Howlett
2020-12-10 17:03 ` [PATCH 20/28] mm/mmap: Change __do_munmap() to avoid unnecessary lookups Liam R. Howlett
2020-12-10 17:03 ` [PATCH 21/28] mm/mmap: Change __do_munmap() to use a ma_state Liam R. Howlett
2020-12-10 17:03 ` [PATCH 22/28] mm/mmap: Move mmap_region() below do_munmap() Liam R. Howlett
2020-12-10 17:03 ` [PATCH 23/28] mm/mmap: Add do_mas_munmap() and wraper for __do_munmap() Liam R. Howlett
2020-12-10 17:03 ` [PATCH 24/28] mmap: Use find_vma_intersection in do_mmap() for overlap Liam R. Howlett
2020-12-10 17:03 ` [PATCH 25/28] mmap: Remove __do_munmap() in favour of do_mas_munmap() Liam R. Howlett
2020-12-10 17:04 ` [PATCH 26/28] mm/mmap: Change do_brk_munmap() to use do_mas_align_munmap() Liam R. Howlett
2020-12-10 17:04 ` [PATCH 27/28] mmap: Update count_vma_pages_range() to only use one ma_state Liam R. Howlett
2020-12-10 17:04 ` [PATCH 28/28] mmap: make remove_vma_list() inline Liam R. Howlett

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