Exemplos de yaffs2_checkpt_flush_buffer em C++ (Cpp)

Exemplo n.º 1

Arquivo: yaffs_checkptrw.c Projeto: openube/android_kernel_sony_c2305

int yaffs2_checkpt_wr(struct yaffs_dev *dev, const void *data, int n_bytes)
{
	int i = 0;
	int ok = 1;

	u8 *data_bytes = (u8 *) data;

	if (!dev->checkpt_buffer)
		return 0;

	if (!dev->checkpt_open_write)
		return -1;

	while (i < n_bytes && ok) {
		dev->checkpt_buffer[dev->checkpt_byte_offs] = *data_bytes;
		dev->checkpt_sum += *data_bytes;
		dev->checkpt_xor ^= *data_bytes;

		dev->checkpt_byte_offs++;
		i++;
		data_bytes++;
		dev->checkpt_byte_count++;

		if (dev->checkpt_byte_offs < 0 ||
		    dev->checkpt_byte_offs >= dev->data_bytes_per_chunk)
			ok = yaffs2_checkpt_flush_buffer(dev);
	}

	return i;
}

Exemplo n.º 2

Arquivo: yaffs_checkptrw.c Projeto: P-D-A/android_kernel_lge_mt6753

int yaffs_checkpt_close(struct yaffs_dev *dev)
{

	if (dev->checkpt_open_write) {
		if (dev->checkpt_byte_offs != 0)
			yaffs2_checkpt_flush_buffer(dev);
	} else if (dev->checkpt_block_list) {
		int i;

		for (i = 0;
				i < dev->blocks_in_checkpt
				&& dev->checkpt_block_list[i] >= 0; i++) {
			int blk = dev->checkpt_block_list[i];
			struct yaffs_block_info *bi = NULL;

			if (dev->internal_start_block <= blk
					&& blk <= dev->internal_end_block)
				bi = yaffs_get_block_info(dev, blk);
			if (bi && bi->block_state == YAFFS_BLOCK_STATE_EMPTY)
				bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT;
			else
				;
		}
		kfree(dev->checkpt_block_list);
		dev->checkpt_block_list = NULL;
	}

	dev->n_free_chunks -=
		dev->blocks_in_checkpt * dev->param.chunks_per_block;
	dev->n_erased_blocks -= dev->blocks_in_checkpt;

	yaffs_trace(YAFFS_TRACE_CHECKPOINT, "checkpoint byte count %d",
			dev->checkpt_byte_count);

	if (dev->checkpt_buffer) {
		/* free the buffer */
		kfree(dev->checkpt_buffer);
		dev->checkpt_buffer = NULL;
		return 1;
	} else {
		return 0;
	}
}

Exemplo n.º 3

int yaffs_checkpt_close(yaffs_dev_t *dev)
{

	if (dev->checkpt_open_write) {
		if (dev->checkpt_byte_offs != 0)
			yaffs2_checkpt_flush_buffer(dev);
	} else if(dev->checkpt_block_list){
		int i;
		for (i = 0; i < dev->blocks_in_checkpt && dev->checkpt_block_list[i] >= 0; i++) {
			int blk = dev->checkpt_block_list[i];
			yaffs_block_info_t *bi = NULL;
			if( dev->internal_start_block <= blk && blk <= dev->internal_end_block)
				bi = yaffs_get_block_info(dev, blk);
			if (bi && bi->block_state == YAFFS_BLOCK_STATE_EMPTY)
				bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT;
			else {
				/* Todo this looks odd... */
			}
		}
		YFREE(dev->checkpt_block_list);
		dev->checkpt_block_list = NULL;
	}

	dev->n_free_chunks -= dev->blocks_in_checkpt * dev->param.chunks_per_block;
	dev->n_erased_blocks -= dev->blocks_in_checkpt;


	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint byte count %d" TENDSTR),
			dev->checkpt_byte_count));

	if (dev->checkpt_buffer) {
		/* free the buffer */
		YFREE(dev->checkpt_buffer);
		dev->checkpt_buffer = NULL;
		return 1;
	} else
		return 0;
}