Function dfs_file_fsync

components/dfs/dfs_v2/src/dfs_file.c:1636–1662

* @brief Synchronize file data to storage device * * This function flushes all modified file data and metadata to the underlying storage device. * It ensures data integrity by: * - Flushing page cache if enabled (RT_USING_PAGECACHE) * - Calling filesystem-specific flush operation * * @param[in] file Pointer to the file structure to synchronize * * @return int Operation result: *

 *       about data persistence on storage media
 */
int dfs_file_fsync(struct dfs_file *file)
{
    int ret = -EBADF;

    if (file)
    {
        if (file->fops->flush)
        {
            if (dfs_is_mounted(file->vnode->mnt) == 0)
            {
#ifdef RT_USING_PAGECACHE
                if (file->vnode->aspace)
                {
                    dfs_aspace_flush(file->vnode->aspace);
                }
#endif
                ret = file->fops->flush(file);
            }
            else
            {
                ret = -EINVAL;
            }
        }
    }

    return ret;
}

/**
 * @brief Delete a file or directory entry from the filesystem