diff options
author | Matthew Wilcox <willy@linux.intel.com> | 2016-03-17 14:21:45 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-17 15:09:34 -0700 |
commit | 1366c37ed84b166a0fffe201154b0d3b78a3976b (patch) | |
tree | 3a688edaf09069694db90421f200568b886a4295 /tools/testing/radix-tree/linux.c | |
parent | f67c07f07fca95a7f330b8bb928eabaf9fcce75d (diff) |
radix tree test harness
This code is mostly from Andrew Morton and Nick Piggin; tarball downloaded
from http://ozlabs.org/~akpm/rtth.tar.gz with sha1sum
0ce679db9ec047296b5d1ff7a1dfaa03a7bef1bd
Some small modifications were necessary to the test harness to fix the
build with the current Linux source code.
I also made minor modifications to automatically test the radix-tree.c
and radix-tree.h files that are in the current source tree, as opposed
to a copied and slightly modified version. I am sure more could be done
to tidy up the harness, as well as adding more tests.
[koct9i@gmail.com: fix compilation]
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/testing/radix-tree/linux.c')
-rw-r--r-- | tools/testing/radix-tree/linux.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/tools/testing/radix-tree/linux.c b/tools/testing/radix-tree/linux.c new file mode 100644 index 000000000000..154823737b20 --- /dev/null +++ b/tools/testing/radix-tree/linux.c @@ -0,0 +1,60 @@ +#include <stdlib.h> +#include <string.h> +#include <malloc.h> +#include <unistd.h> +#include <assert.h> + +#include <linux/mempool.h> +#include <linux/slab.h> +#include <urcu/uatomic.h> + +int nr_allocated; + +void *mempool_alloc(mempool_t *pool, int gfp_mask) +{ + return pool->alloc(gfp_mask, pool->data); +} + +void mempool_free(void *element, mempool_t *pool) +{ + pool->free(element, pool->data); +} + +mempool_t *mempool_create(int min_nr, mempool_alloc_t *alloc_fn, + mempool_free_t *free_fn, void *pool_data) +{ + mempool_t *ret = malloc(sizeof(*ret)); + + ret->alloc = alloc_fn; + ret->free = free_fn; + ret->data = pool_data; + return ret; +} + +void *kmem_cache_alloc(struct kmem_cache *cachep, int flags) +{ + void *ret = malloc(cachep->size); + if (cachep->ctor) + cachep->ctor(ret); + uatomic_inc(&nr_allocated); + return ret; +} + +void kmem_cache_free(struct kmem_cache *cachep, void *objp) +{ + assert(objp); + uatomic_dec(&nr_allocated); + memset(objp, 0, cachep->size); + free(objp); +} + +struct kmem_cache * +kmem_cache_create(const char *name, size_t size, size_t offset, + unsigned long flags, void (*ctor)(void *)) +{ + struct kmem_cache *ret = malloc(sizeof(*ret)); + + ret->size = size; + ret->ctor = ctor; + return ret; +} |