IB/iser: Remove redundant cmd_data_len calculation (ecc3993a) · Commits · 戴 / test

This code was added before we had protection data length calculation (in iser_send_command), so we needed to calc the sg data length from the sg itself. This is not needed anymore. This patch does not change any functionality. Signed-off-by:

Sagi Grimberg <sagig@mellanox.com> Signed-off-by:

Adir Lev <adirl@mellanox.com> Signed-off-by:

Doug Ledford <dledford@redhat.com>

drivers/infiniband/ulp/iser/iser_memory.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -53,12 +53,9 @@ static int iser_start_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
		struct scatterlist sgl = (struct scatterlist )data->buf;
		struct scatterlist *sg;
		char *mem = NULL;
		unsigned long cmd_data_len = 0;
		unsigned long cmd_data_len = data->data_len;
		int dma_nents, i;

		for_each_sg(sgl, sg, data->size, i)
		cmd_data_len += ib_sg_dma_len(dev, sg);

		if (cmd_data_len > ISER_KMALLOC_THRESHOLD)
		mem = (void *)__get_free_pages(GFP_ATOMIC,
		ilog2(roundup_pow_of_two(cmd_data_len)) - PAGE_SHIFT);

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