Under IO/CPU stress its possible that the FMR pool might not have free FMR mapping element for iser to use as of incompleted background unmapping processing. On that case we get -EAGAIN, the IO is pushed back to the SCSI layer which soon retries it. No need to be so verbose about that.
Signed-off-by: Or Gerlitz <[email protected]> --- drivers/infiniband/ulp/iser/iser_memory.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index 2033a92..79c4f35 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -404,7 +404,7 @@ int iser_reg_rdma_mem(struct iscsi_iser_task *iser_task, } else { /* use FMR for multiple dma entries */ iser_page_vec_build(mem, ib_conn->page_vec, ibdev); err = iser_reg_page_vec(ib_conn, ib_conn->page_vec, ®d_buf->reg); - if (err) { + if (err && err != -EAGAIN) { iser_data_buf_dump(mem, ibdev); iser_err("mem->dma_nents = %d (dlength = 0x%x)\n", mem->dma_nents, -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
