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| author | Hannes Reinecke <hare@suse.de> | 2013-12-17 09:18:49 +0100 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-01-09 21:48:17 -0800 |
| commit | c66094bf325ee406b92298d73089ee25484a0263 (patch) | |
| tree | cfa2fb231dbd3e120ad2d75f96c250c24233978a /drivers/target/target_core_configfs.c | |
| parent | fbfe858fea2a45df6339eb03dd1715b51f1bdc92 (diff) | |
| download | op-kernel-dev-c66094bf325ee406b92298d73089ee25484a0263.zip op-kernel-dev-c66094bf325ee406b92298d73089ee25484a0263.tar.gz | |
target_core_alua: Referrals infrastructure
Add infrastructure for referrals.
v2 changes:
- Fix unsigned long long division in core_alua_state_lba_dependent on
32-bit (Fengguang + Chen + Hannes)
- Fix compile warning in core_alua_state_lba_dependent (nab)
- Convert segment_* + sectors variables in core_alua_state_lba_dependent
to u64 (Hannes)
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_configfs.c')
| -rw-r--r-- | drivers/target/target_core_configfs.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index a1c23d1..e0a47f5 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -2054,6 +2054,13 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_state( " transition while TPGS_IMPLICIT_ALUA is disabled\n"); return -EINVAL; } + if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA && + new_state == ALUA_ACCESS_STATE_LBA_DEPENDENT) { + /* LBA DEPENDENT is only allowed with implicit ALUA */ + pr_err("Unable to process implicit configfs ALUA transition" + " while explicit ALUA management is enabled\n"); + return -EINVAL; + } ret = core_alua_do_port_transition(tg_pt_gp, dev, NULL, NULL, new_state, 0); @@ -2188,7 +2195,7 @@ SE_DEV_ALUA_SUPPORT_STATE_SHOW(lba_dependent, tg_pt_gp_alua_supported_states, ALUA_LBD_SUP); SE_DEV_ALUA_SUPPORT_STATE_STORE(lba_dependent, tg_pt_gp_alua_supported_states, ALUA_LBD_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_lba_dependent, S_IRUGO | S_IWUSR); +SE_DEV_ALUA_TG_PT_ATTR(alua_support_lba_dependent, S_IRUGO); SE_DEV_ALUA_SUPPORT_STATE_SHOW(unavailable, tg_pt_gp_alua_supported_states, ALUA_U_SUP); |
