procfs/meminfo: free delaylist for PROTECTED

This triggers `mm_free_delaylist()` before dumping status in PROTECTED build, otherwise the `free` command still shows delaylist as `used`. Signed-off-by: Yanfeng Liu <[email protected]>
yf13 · Aug 2, 2024 · 3377729 · 3377729
1 parent 3521952
commit 3377729
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/fs/procfs/fs_procfsmeminfo.c b/fs/procfs/fs_procfsmeminfo.c
@@ -314,6 +314,14 @@ static ssize_t meminfo_read(FAR struct file *filep, FAR char *buffer,
           buffer    += copysize;
           buflen    -= copysize;
 
+#ifdef CONFIG_BUILD_PROTECTED
+          /* 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);
+#endif
           /* Show heap information */
 
           info      = mm_mallinfo(entry->heap);