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-rw-r--r--libhurd-slab/slab.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/libhurd-slab/slab.c b/libhurd-slab/slab.c
index 58222704..b20a8e74 100644
--- a/libhurd-slab/slab.c
+++ b/libhurd-slab/slab.c
@@ -24,6 +24,7 @@
#include <stdlib.h>
#include <errno.h>
+#include <sys/mman.h>
#include <assert.h>
#include <string.h>
#include <unistd.h>
@@ -76,8 +77,9 @@ allocate_buffer (struct hurd_slab_space *space, size_t size, void **ptr)
return space->allocate_buffer (space->hook, size, ptr);
else
{
- *ptr = malloc (size);
- if (*ptr == NULL)
+ *ptr = mmap (NULL, size, PROT_READ|PROT_WRITE,
+ MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
+ if (*ptr == MAP_FAILED)
return errno;
else
return 0;
@@ -93,8 +95,10 @@ deallocate_buffer (struct hurd_slab_space *space, void *buffer, size_t size)
return space->deallocate_buffer (space->hook, buffer, size);
else
{
- free (buffer);
- return 0;
+ if (munmap (buffer, size) == -1)
+ return errno;
+ else
+ return 0;
}
}