diff --git a/lfs.c b/lfs.c
index 4553a6ed..ca8f3f0a 100644
--- a/lfs.c
+++ b/lfs.c
@@ -133,7 +133,7 @@ static int lfs_bd_flush(lfs_t *lfs,
             return err;
         }
 
-        if (validate) {
+        if (lfs->cfg->validate >= 0 && validate) {
             // check data on disk
             lfs_cache_drop(lfs, rcache);
             int res = lfs_bd_cmp(lfs,
@@ -3593,14 +3593,14 @@ int lfs_mount(lfs_t *lfs, const struct lfs_config *cfg) {
                 ".lookahead_size=%"PRIu32", .read_buffer=%p, "
                 ".prog_buffer=%p, .lookahead_buffer=%p, "
                 ".name_max=%"PRIu32", .file_max=%"PRIu32", "
-                ".attr_max=%"PRIu32"})",
+                ".attr_max=%"PRIu32", .validate=%"PRIu32"})",
             (void*)lfs, (void*)cfg, cfg->context,
             (void*)(uintptr_t)cfg->read, (void*)(uintptr_t)cfg->prog,
             (void*)(uintptr_t)cfg->erase, (void*)(uintptr_t)cfg->sync,
             cfg->read_size, cfg->prog_size, cfg->block_size, cfg->block_count,
             cfg->block_cycles, cfg->cache_size, cfg->lookahead_size,
             cfg->read_buffer, cfg->prog_buffer, cfg->lookahead_buffer,
-            cfg->name_max, cfg->file_max, cfg->attr_max);
+            cfg->name_max, cfg->file_max, cfg->attr_max, cfg->validate);
     int err = lfs_init(lfs, cfg);
     if (err) {
         LFS_TRACE("lfs_mount -> %d", err);
diff --git a/lfs.h b/lfs.h
index 04054e91..8e31138f 100644
--- a/lfs.h
+++ b/lfs.h
@@ -32,7 +32,6 @@ extern "C"
 #define LFS_DISK_VERSION_MAJOR (0xffff & (LFS_DISK_VERSION >> 16))
 #define LFS_DISK_VERSION_MINOR (0xffff & (LFS_DISK_VERSION >>  0))
 
-
 /// Definitions ///
 
 // Type definitions
@@ -240,6 +239,14 @@ struct lfs_config {
     // larger attributes size but must be <= LFS_ATTR_MAX. Defaults to
     // LFS_ATTR_MAX when zero.
     lfs_size_t attr_max;
+
+    // Whether read and validate after writing. The positive number means
+    // enable while the negative number means disable. The zero means
+    // enable for compatible. It can imporve write performance if no
+    // validation, but drivers must ensure data integrity.
+    int validate;
+#define LFS_ENABLE_VALIDATE 1
+#define LFS_DISABLE_VALIDATE -1
 };
 
 // File info structure