使用片上flash的littlefs无法创建多个目录怎么办？

主要运行代码

#include

#include /* 当需要使用文件操作时，需要包含这个头文件 */

static void mkdir_sample(void)

{

int ret;

/* 创建目录*/

ret = mkdir("/hello_1", 0x777);

ret = mkdir("/hello_2", 0x777);

ret = mkdir("/hello_3", 0x777);

ret = mkdir("/hello_4", 0x777);

ret = mkdir("/hello_5", 0x777);

ret = mkdir("/hello_6", 0x777);

if (ret < 0)

{

/* 创建目录失败*/

rt_kprintf("dir error!\n");

}

else

{

/* 创建目录成功*/

rt_kprintf("mkdir ok!\n");

}

/* 导出到 msh 命令列表中 */

MSH_CMD_EXPORT(mkdir_sample, mkdir sample);

问题

一但创建第三个目录就会出事，但文件数量创建了二十多个也没出事

出现packages/littlefs-latest/lfs.c560error: No more free space 9 错误

没有更多可用的空间？

感觉分了768KB给littlefs（STM32427VIT6 扇区17到23），应该也够用了吧。

难道创建目录

占很多的空间？

源码看的我有点晕，有没有dalao有想法，望指点。

packages/littlefs-latest/lfs.c文件对应560行处函数

      // check if we have looked at all blocks since last ack
      if (lfs->free.ack == 0) {
         LFS_ERROR("No more free space %"PRIu32,
                  lfs->free.i + lfs->free.off);
         return LFS_ERR_NOSPC;
      }
初始化情况
\ | /
- RT -    Thread Operating System
/ | \    4.0.2 build Feb  2 2021
2006 - 2019 Copyright by rt-thread team
[D/FAL] (fal_flash_init:61) Flash device |       onchip_flash_16k | addr: 0x08100000 | len: 0x00010000 | blk_size: 0x00004000 |initialized finish.
[D/FAL] (fal_flash_init:61) Flash device |       onchip_flash_64k | addr: 0x08110000 | len: 0x00010000 | blk_size: 0x00010000 |initialized finish.
[D/FAL] (fal_flash_init:61) Flash device |       onchip_flash_128k | addr: 0x08120000 | len: 0x000e0000 | blk_size: 0x00020000 |initialized finish.
[32;22m[I/FAL] ==================== FAL partition table ====================[0m
[32;22m[I/FAL] | name    | flash_dev       | offset | length  |[0m
[32;22m[I/FAL] -------------------------------------------------------------[0m
[32;22m[I/FAL] | bl       | onchip_flash_16k  | 0x00000000 | 0x00010000 |[0m
[32;22m[I/FAL] | param    | onchip_flash_64k  | 0x00000000 | 0x00010000 |[0m
[32;22m[I/FAL] | app       | onchip_flash_128k | 0x00000000 | 0x00020000 |[0m
[32;22m[I/FAL] | filesystem | onchip_flash_128k | 0x00020000 | 0x000c0000 |[0m
[32;22m[I/FAL] =============================================================[0m
[32;22m[I/FAL] RT-Thread Flash Abstraction Layer (V0.5.0) initialize success.[0m
[32;22m[I/FAL] The FAL MTD NOR device (filesystem) created successfully[0m
[32m[I/main] Filesystem initialized![0m
msh />
附件
fal_cfg.h文件

#ifndef _FAL_CFG_H_
#define _FAL_CFG_H_
#include
#include
/* ===================== Flash device Configuration ========================= */
extern const struct fal_flash_dev stm32_onchip_flash_16k ;
extern const struct fal_flash_dev stm32_onchip_flash_64k ;
extern const struct fal_flash_dev stm32_onchip_flash_128k;
/* flash device table */
#define FAL_FLASH_DEV_TABLE                                        \
{                                                                   \
&stm32_onchip_flash_16k,                                        \
&stm32_onchip_flash_64k,                                        \
&stm32_onchip_flash_128k,                                     \
}
/* ====================== Partition Configuration ========================== */
#ifdef FAL_PART_HAS_TABLE_CFG
/* partition table */
#define FAL_PART_TABLE                                                                            \
{                                                                                                 \
{FAL_PART_MAGIC_WORD,  "bl",          "onchip_flash_16k" ,             0,    64 * 1024, 0}, \
{FAL_PART_MAGIC_WORD,  "param",       "onchip_flash_64k" ,             0,    64 * 1024, 0}, \
{FAL_PART_MAGIC_WORD,  "app",          "onchip_flash_128k",             0,    128* 1024, 0}, \
{FAL_PART_MAGIC_WORD,  "filesystem",    "onchip_flash_128k", 128 * 1024,    768* 1024, 0}, \
}
#endif /* FAL_PART_HAS_TABLE_CFG */
#endif /* _FAL_CFG_H_ */
其他文件
#define STM32_FLASH_START_ADRESS_16K ((uint32_t)0x08100000)
#define STM32_FLASH_START_ADRESS_64K ((uint32_t)0x08110000)
#define STM32_FLASH_START_ADRESS_128K ((uint32_t)0x08120000)
#define FLASH_SIZE_GRANULARITY_16K    (64*1024 )
#define FLASH_SIZE_GRANULARITY_64K    (64*1024 )
#define FLASH_SIZE_GRANULARITY_128K    (896*1024)
const struct fal_flash_dev stm32_onchip_flash_16k = { "onchip_flash_16k", STM32_FLASH_START_ADRESS_16K, FLASH_SIZE_GRANULARITY_16K, (16 * 1024), {NULL, fal_flash_read_16k, fal_flash_write_16k, fal_flash_erase_16k} };
const struct fal_flash_dev stm32_onchip_flash_64k = { "onchip_flash_64k", STM32_FLASH_START_ADRESS_64K, FLASH_SIZE_GRANULARITY_64K, (64 * 1024), {NULL, fal_flash_read_64k, fal_flash_write_64k, fal_flash_erase_64k} };
const struct fal_flash_dev stm32_onchip_flash_128k = { "onchip_flash_128k", STM32_FLASH_START_ADRESS_128K, FLASH_SIZE_GRANULARITY_128K, (128 * 1024), {NULL, fal_flash_read_128k, fal_flash_write_128k, fal_flash_erase_128k} };