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IB/iser: Use atomic allocations 

Two minor flows in iSER's data path still use allocations; move them
to be atomic as a preperation step towards moving to use libiscsi
passthrough mode.

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Or Gerlitz 2010-02-08 13:20:43 +00:00 committed by Roland Dreier
parent f19624aa92
commit 528f4e8c83
2 changed files with 3 additions and 3 deletions
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2
drivers/infiniband/ulp/iser/iser_initiator.c
View File

@ -373,7 +373,7 @@ int iser_send_data_out(struct iscsi_conn *conn,
iser_dbg("%s itt %d dseg_len %d offset %d\n", iser_dbg("%s itt %d dseg_len %d offset %d\n",
__func__,(int)itt,(int)data_seg_len,(int)buf_offset); __func__,(int)itt,(int)data_seg_len,(int)buf_offset);
tx_desc = kmem_cache_zalloc(ig.desc_cache, GFP_NOIO); tx_desc = kmem_cache_zalloc(ig.desc_cache, GFP_ATOMIC);
if (tx_desc == NULL) { if (tx_desc == NULL) {
iser_err("Failed to alloc desc for post dataout\n"); iser_err("Failed to alloc desc for post dataout\n");
return -ENOMEM; return -ENOMEM;

4
drivers/infiniband/ulp/iser/iser_memory.c
View File

@ -53,10 +53,10 @@ static int iser_start_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
unsigned long cmd_data_len = data->data_len; unsigned long cmd_data_len = data->data_len;
if (cmd_data_len > ISER_KMALLOC_THRESHOLD) if (cmd_data_len > ISER_KMALLOC_THRESHOLD)
mem = (void *)__get_free_pages(GFP_NOIO, mem = (void *)__get_free_pages(GFP_ATOMIC,
ilog2(roundup_pow_of_two(cmd_data_len)) - PAGE_SHIFT); ilog2(roundup_pow_of_two(cmd_data_len)) - PAGE_SHIFT);
else else
mem = kmalloc(cmd_data_len, GFP_NOIO); mem = kmalloc(cmd_data_len, GFP_ATOMIC);
if (mem == NULL) { if (mem == NULL) {
iser_err("Failed to allocate mem size %d %d for copying sglist\n", iser_err("Failed to allocate mem size %d %d for copying sglist\n",