Function dfs_aspace_flush

components/dfs/dfs_v2/src/dfs_pcache.c:1719–1758

* @brief Flush dirty pages in an address space to storage * * This function writes all dirty pages in the specified address space to storage, * ensuring data persistence. It handles page size adjustments and clears dirty flags * after successful writes. * * @param[in] aspace Pointer to the address space containing dirty pages * * @return Always returns 0 (success) */

 * @return Always returns 0 (success)
 */
int dfs_aspace_flush(struct dfs_aspace *aspace)
{
    if (aspace)
    {
        rt_list_t *next;
        struct dfs_page *page;

        dfs_aspace_lock(aspace);

        if (aspace->pages_count > 0 && aspace->vnode)
        {
            rt_list_for_each(next, &aspace->list_dirty)
            {
                page = rt_list_entry(next, struct dfs_page, dirty_node);
                if (page->is_dirty == 1 && aspace->vnode)
                {
                    if (aspace->vnode->size < page->fpos + page->size)
                    {
                        page->len = aspace->vnode->size - page->fpos;
                    }
                    else
                    {
                        page->len = page->size;
                    }

                    if (aspace->ops->write)
                    {
                        aspace->ops->write(page);
                    }

                    page->is_dirty = 0;
                }
                RT_ASSERT(page->is_dirty == 0);
            }
        }

        dfs_aspace_unlock(aspace);
    }
    return 0;
}

/**
 * @brief Clean all pages from an address space