Calculate and cache the file count during llfs init

project/Core/Src/llfs.c

@@ -41,6 +41,14 @@ int8_t llfs_init(void) {
     file_table[STDOUT_FILENO] = stdout;
     file_table[STDERR_FILENO] = stderr;
 
+    // Calculate the number of files in the filesystem and cache it
+    const struct llfs_data_file* file = llfs_root;
+    file_count = 0;
+    while (file != NULL) {
+        file_count++;
+        file = file->next;
+    }
+
     return 0;
 }
 
@@ -130,13 +138,6 @@ llfs_file_t* llfs_next_file(void** mem, char* filter) {
 }
 
 size_t llfs_file_count(void) {
-    if (file_count == 0) {
-        const struct llfs_data_file* file = llfs_root;
-        while (file != NULL) {
-            file_count++;
-            file = file->next;
-        }
-    }
     return file_count;
 }