Function dfs_aspace_release

components/dfs/dfs_v2/src/dfs_pcache.c:792–824

* @brief Release an address space when its reference count reaches 1 * * This function checks if the address space can be safely released by verifying: * - Reference count is 1 (only caller holds reference) * - No pages remain in the address space * If conditions are met, it removes the space from cache and frees all resources. * * @param[in] aspace Pointer to the address space to be releas

 * @return 0 on successful release, -1 if space cannot be released yet
 */
static int dfs_aspace_release(struct dfs_aspace *aspace)
{
    int ret = -1;

    if (aspace)
    {
        dfs_pcache_lock();
        dfs_aspace_lock(aspace);

        if (rt_atomic_load(&aspace->ref_count) == 1 && aspace->pages_count == 0)
        {
            dfs_aspace_remove(aspace);
            if (aspace->fullpath)
            {
                rt_free(aspace->fullpath);
            }
            if (aspace->pathname)
            {
                rt_free(aspace->pathname);
            }
            rt_mutex_detach(&aspace->lock);
            rt_free(aspace);
            ret = 0;
        }
        else
        {
            dfs_aspace_unlock(aspace);
        }
        dfs_pcache_unlock();
    }

    return ret;
}

/**
 * @brief Dump address space page information for debugging