kernel: vm: Add support for dynalloc pool resize

This commit creates a wrapper that allows resizing of a memory pool
created by dynalloc()

Signed-off-by: Ian Moffett <ian@osmora.org>

2 files changed, 16 insertions, 0 deletions

diff --git a/sys/include/vm/dynalloc.h b/sys/include/vm/dynalloc.h
index 4a70f2c..8c51a55 100644
--- a/sys/include/vm/dynalloc.h
+++ b/sys/include/vm/dynalloc.h
@@ -33,6 +33,7 @@
 #include <sys/types.h>
 
 void *dynalloc(size_t sz);
+void *dynrealloc(void *old_ptr, size_t newsize);
 void dynfree(void *ptr);
 
 #endif  /* !_VM_DYNALLOC_H_ */
diff --git a/sys/vm/vm_dynalloc.c b/sys/vm/vm_dynalloc.c
index 8f766a8..d43372b 100644
--- a/sys/vm/vm_dynalloc.c
+++ b/sys/vm/vm_dynalloc.c
@@ -45,6 +45,21 @@ dynalloc(size_t sz)
 }
 
 /*
+ * Reallocates memory pool created by `dynalloc()'
+ *
+ * @old_ptr: Pointer to old pool.
+ * @newsize: Size of new pool.
+ */
+void *
+dynrealloc(void *old_ptr, size_t newsize)
+{
+    /* TODO: Per CPU */
+    struct cpu_vm_ctx vm_ctx = vm_get_bsp_ctx();
+
+    return tlsf_realloc(vm_ctx.tlsf_ctx, old_ptr, newsize);
+}
+
+/*
  * Free dynamically allocated memory
  *
  * @ptr: Pointer to base of memory.