mm: Call mm_free_delaylist in mm_mallinfo

and remove it from meminfo_read to enuse caller
always get get accuracy memory information.

Signed-off-by: ganjing <ganjing@xiaomi.com>

fs/procfs/fs_procfsmeminfo.c

@@ -318,13 +318,6 @@ static ssize_t meminfo_read(FAR struct file *filep, FAR char *buffer,
           buffer    += copysize;
           buflen    -= copysize;
 
-          /* Trigger reclamation of delay list otherwise they will be
-           * counted as used, which often confuses people like memory
-           * leakages. see pull/12817 for more information.
-           */
-
-          mm_free_delaylist(entry->heap);
-
           /* Show heap information */
 
           info      = mm_mallinfo(entry->heap);

include/nuttx/mm/mm.h

@@ -319,8 +319,6 @@ void kmm_addregion(FAR void *heapstart, size_t heapsize);
 
 FAR void *mm_malloc(FAR struct mm_heap_s *heap, size_t size) malloc_like1(2);
 
-void mm_free_delaylist(FAR struct mm_heap_s *heap);
-
 /* Functions contained in kmm_malloc.c **************************************/
 
 #ifdef CONFIG_MM_KERNEL_HEAP

mm/mm_heap/mm.h

@@ -306,6 +306,10 @@ void mm_foreach(FAR struct mm_heap_s *heap, mm_node_handler_t handler,
 
 void mm_delayfree(FAR struct mm_heap_s *heap, FAR void *mem, bool delay);
 
+/* Functions contained in mm_malloc.c ***************************************/
+
+void mm_free_delaylist(FAR struct mm_heap_s *heap);
+
 /****************************************************************************
  * Inline Functions
  ****************************************************************************/

mm/mm_heap/mm_foreach.c

@@ -58,6 +58,7 @@ void mm_foreach(FAR struct mm_heap_s *heap, mm_node_handler_t handler,
 #endif
 
   DEBUGASSERT(handler);
+  mm_free_delaylist(heap);
 
   /* Visit each region */
 

mm/mm_heap/mm_initialize.c

@@ -387,6 +387,8 @@ void mm_uninitialize(FAR struct mm_heap_s *heap)
   mempool_multiple_deinit(heap->mm_mpool);
 #endif
 
+  mm_free_delaylist(heap);
+
   for (i = 0; i < CONFIG_MM_REGIONS; i++)
     {
       if (!heap->mm_nokasan)

mm/mm_heap/mm_mallinfo.c

@@ -190,6 +190,7 @@ struct mallinfo_task mm_mallinfo_task(FAR struct mm_heap_s *heap,
 
 size_t mm_heapfree(FAR struct mm_heap_s *heap)
 {
+  mm_free_delaylist(heap);
   return heap->mm_heapsize - heap->mm_curused;
 }
 
@@ -204,6 +205,9 @@ size_t mm_heapfree(FAR struct mm_heap_s *heap)
 size_t mm_heapfree_largest(FAR struct mm_heap_s *heap)
 {
   FAR struct mm_freenode_s *node;
+
+  mm_free_delaylist(heap);
+
   for (node = heap->mm_nodelist[MM_NNODES - 1].blink; node;
        node = node->blink)
     {

mm/tlsf/mm_tlsf.c

@@ -833,6 +833,8 @@ void mm_checkcorruption(FAR struct mm_heap_s *heap)
 #  define region 0
 #endif
 
+  free_delaylist(heap, true);
+
   /* Visit each region */
 
 #if CONFIG_MM_REGIONS > 1
@@ -1153,6 +1155,8 @@ struct mallinfo mm_mallinfo(FAR struct mm_heap_s *heap)
 
   memset(&info, 0, sizeof(struct mallinfo));
 
+  free_delaylist(heap, true);
+
   /* Visit each region */
 
 #if CONFIG_MM_REGIONS > 1
@@ -1197,6 +1201,8 @@ struct mallinfo_task mm_mallinfo_task(FAR struct mm_heap_s *heap,
 #define region 0
 #endif
 
+  free_delaylist(heap, true);
+
 #ifdef CONFIG_MM_HEAP_MEMPOOL
   info = mempool_multiple_info_task(heap->mm_mpool, task);
 #endif
@@ -1244,6 +1250,8 @@ void mm_memdump(FAR struct mm_heap_s *heap,
   memset(&priv, 0, sizeof(struct mm_memdump_priv_s));
   priv.dump = dump;
 
+  free_delaylist(heap, true);
+
   if (pid == PID_MM_MEMPOOL)
     {
       syslog(LOG_INFO, "Memdump mempool\n");
@@ -1680,6 +1688,8 @@ void mm_uninitialize(FAR struct mm_heap_s *heap)
   mempool_multiple_deinit(heap->mm_mpool);
 #endif
 
+  free_delaylist(heap, true);
+
   for (i = 0; i < CONFIG_MM_REGIONS; i++)
     {
       if (!heap->mm_nokasan)
@@ -1721,22 +1731,6 @@ FAR void *mm_zalloc(FAR struct mm_heap_s *heap, size_t size)
   return alloc;
 }
 
-/****************************************************************************
- * Name: mm_free_delaylist
- *
- * Description:
- *   force freeing the delaylist of this heap.
- *
- ****************************************************************************/
-
-void mm_free_delaylist(FAR struct mm_heap_s *heap)
-{
-  if (heap)
-    {
-       free_delaylist(heap, true);
-    }
-}
-
 /****************************************************************************
  * Name: mm_heapfree
  *
@@ -1747,6 +1741,7 @@ void mm_free_delaylist(FAR struct mm_heap_s *heap)
 
 size_t mm_heapfree(FAR struct mm_heap_s *heap)
 {
+  free_delaylist(heap, true);
   return heap->mm_heapsize - heap->mm_curused;
 }