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iser-target: Fix multi network portal shutdown regression

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This patch fixes a iser-target specific regression introduced in
v3.15-rc6 with:

commit 14f4b54fe3
Author: Sagi Grimberg <[email protected]>
Date:   Tue Apr 29 13:13:47 2014 +0300

    Target/iscsi,iser: Avoid accepting transport connections during stop stage

where the change to set iscsi_np->enabled = false within
iscsit_clear_tpg_np_login_thread() meant that a iscsi_np with
two iscsi_tpg_np exports would have it's parent iscsi_np set
to a disabled state, even if other iscsi_tpg_np exports still
existed.

This patch changes iscsit_clear_tpg_np_login_thread() to only
set iscsi_np->enabled = false when shutdown = true, and also
changes iscsit_del_np() to set iscsi_np->enabled = true when
iscsi_np->np_exports is non zero.

Cc: Sagi Grimberg <[email protected]>
Cc: [email protected] # 3.10+
Signed-off-by: Nicholas Bellinger <[email protected]>
This commit is contained in:
Nicholas Bellinger 2014-06-03 18:27:52 -07:00
commit 2363d19668
2 changed files with 3 additions and 1 deletions
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1
drivers/target/iscsi/iscsi_target.c
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@ -460,6 +460,7 @@ int iscsit_del_np(struct iscsi_np *np)
spin_lock_bh(&np->np_thread_lock);
np->np_exports--;
if (np->np_exports) {
np->enabled = true;
spin_unlock_bh(&np->np_thread_lock);
return 0;
}

3
drivers/target/iscsi/iscsi_target_tpg.c
View file

@ -184,7 +184,8 @@ static void iscsit_clear_tpg_np_login_thread(
return;
}
tpg_np->tpg_np->enabled = false;
if (shutdown)
tpg_np->tpg_np->enabled = false;
iscsit_reset_np_thread(tpg_np->tpg_np, tpg_np, tpg, shutdown);
}