diff options
| author |   Nicholas Bellinger <nab@linux-iscsi.org> | 2015-09-15 17:27:35 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-09-24 23:17:21 -0700 |
| commit | eeeb9522231118138be418ff527dc8c9050f4707 (patch) | |
| tree | bc9dc2d41c12551c52ad53449cf9b34171572fe9 /drivers/target/target_core_tpg.c | |
| parent | target: Fix PR registration + APTPL RCU conversion regression (diff) | |
| download | linux-dev-eeeb9522231118138be418ff527dc8c9050f4707.tar.xz linux-dev-eeeb9522231118138be418ff527dc8c9050f4707.zip | |
target: Propigate backend read-only to core_tpg_add_lun
This patch adds a DF_READ_ONLY flag that is used by IBLOCK to
signal when a backend has been set to read-only mode, in order
to propigate read-only status up to core_tpg_add_lun() for all
future LUN fabric exports.
With this is place, existing emulation for reporting read-only
in spc_emulate_modesense() and normal transport_lookup_cmd_lun()
TCM_WRITE_PROTECTED status checking just works as expected.
Reported-by: Joeue Deng <joeue404@gmail.com>
Reported-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_tpg.c')
| -rw-r--r-- | drivers/target/target_core_tpg.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index 2d0381dd105c..5fb9dd7f08bb 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -668,7 +668,10 @@ int core_tpg_add_lun( list_add_tail(&lun->lun_dev_link, &dev->dev_sep_list); spin_unlock(&dev->se_port_lock); - lun->lun_access = lun_access; + if (dev->dev_flags & DF_READ_ONLY) + lun->lun_access = TRANSPORT_LUNFLAGS_READ_ONLY; + else + lun->lun_access = lun_access; if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) hlist_add_head_rcu(&lun->link, &tpg->tpg_lun_hlist); mutex_unlock(&tpg->tpg_lun_mutex); |