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target: simplify alua support

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We always support ALUA for virtual backends, and never for physical ones.  Simplify
the code to just deal with these two cases and remove the superflous abstractions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Christoph Hellwig
2012-10-10 17:37:16 -04:00
committed by Nicholas Bellinger
parent d977f4377f
commit c87fbd5656
7 changed files with 65 additions and 166 deletions
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drivers/target/target_core_device.c
+2 -2
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@@ -556,7 +556,8 @@ static void core_export_port(
list_add_tail(&port->sep_list, &dev->dev_sep_list);
spin_unlock(&dev->se_port_lock);
if (dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) {
if (dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV &&
!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) {
tg_pt_gp_mem = core_alua_allocate_tg_pt_gp_mem(port);
if (IS_ERR(tg_pt_gp_mem) || !tg_pt_gp_mem) {
pr_err("Unable to allocate t10_alua_tg_pt"
@@ -1398,7 +1399,6 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
dev->dev_attrib.emulate_tas = DA_EMULATE_TAS;
dev->dev_attrib.emulate_tpu = DA_EMULATE_TPU;
dev->dev_attrib.emulate_tpws = DA_EMULATE_TPWS;
dev->dev_attrib.emulate_alua = DA_EMULATE_ALUA;
dev->dev_attrib.enforce_pr_isids = DA_ENFORCE_PR_ISIDS;
dev->dev_attrib.is_nonrot = DA_IS_NONROT;
dev->dev_attrib.emulate_rest_reord = DA_EMULATE_REST_REORD;