Function dfs_pcache_limit_check

components/dfs/dfs_v2/src/dfs_pcache.c:285–296

* @brief Check and enforce page cache memory limit * * This function checks if the current page cache usage exceeds the working level threshold. * If exceeded, it will trigger page cache release up to 4 times to reduce cache size. * * @return Always returns 0 indicating success */

 * @return Always returns 0 indicating success
 */
static int dfs_pcache_limit_check(void)
{
    int index = 4;

    while (index && rt_atomic_load(&(__pcache.pages_count)) > RT_PAGECACHE_COUNT * RT_PAGECACHE_GC_WORK_LEVEL / 100)
    {
        dfs_pcache_release(0);
        index --;
    }

    return 0;
}

/**
 * @brief Page cache management thread