Cleanup: remove trailing whitespaces at EOL
[urcu.git] / rculfhash-mm-mmap.c
index 542c884e9f576c4dae45186b4fa0b4849cbd4eb8..3cc3fa01c9d5ed5c16888ae8f02fb85ae65cf1de 100644 (file)
 #include <sys/mman.h>
 #include "rculfhash-internal.h"
 
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS          MAP_ANON
+#endif
+
 /* reserve inaccessible memory space without allocation any memory */
 static void *memory_map(size_t length)
 {
@@ -36,14 +40,18 @@ static void *memory_map(size_t length)
 
 static void memory_unmap(void *ptr, size_t length)
 {
-       int ret = munmap(ptr, length);
+       int ret __attribute__((unused));
+
+       ret = munmap(ptr, length);
 
        assert(ret == 0);
 }
 
 static void memory_populate(void *ptr, size_t length)
 {
-       void *ret = mmap(ptr, length, PROT_READ | PROT_WRITE,
+       void *ret __attribute__((unused));
+
+       ret = mmap(ptr, length, PROT_READ | PROT_WRITE,
                        MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
 
        assert(ret == ptr);
@@ -55,7 +63,9 @@ static void memory_populate(void *ptr, size_t length)
  */
 static void memory_discard(void *ptr, size_t length)
 {
-       void *ret = mmap(ptr, length, PROT_NONE,
+       void *ret __attribute__((unused));
+
+       ret = mmap(ptr, length, PROT_NONE,
                        MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
 
        assert(ret == ptr);
@@ -125,9 +135,9 @@ static
 struct cds_lfht *alloc_cds_lfht(unsigned long min_nr_alloc_buckets,
                unsigned long max_nr_buckets)
 {
-       struct cds_lfht *ht;
-       unsigned long page_bucket_size = getpagesize() / sizeof(*ht->tbl_mmap);
+       unsigned long page_bucket_size;
 
+       page_bucket_size = getpagesize() / sizeof(struct cds_lfht_node);
        if (max_nr_buckets <= page_bucket_size) {
                /* small table */
                min_nr_alloc_buckets = max_nr_buckets;
@@ -137,19 +147,9 @@ struct cds_lfht *alloc_cds_lfht(unsigned long min_nr_alloc_buckets,
                                        page_bucket_size);
        }
 
-       ht = calloc(1, sizeof(struct cds_lfht));
-       assert(ht);
-
-       ht->mm = &cds_lfht_mm_mmap;
-
-       ht->min_nr_alloc_buckets = min_nr_alloc_buckets;
-       ht->min_alloc_buckets_order =
-                       get_count_order_ulong(min_nr_alloc_buckets);
-       ht->max_nr_buckets = max_nr_buckets;
-
-       ht->bucket_at = bucket_at;
-
-       return ht;
+       return __default_alloc_cds_lfht(
+                       &cds_lfht_mm_mmap, sizeof(struct cds_lfht),
+                       min_nr_alloc_buckets, max_nr_buckets);
 }
 
 const struct cds_lfht_mm_type cds_lfht_mm_mmap = {
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