shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-03 17:51:57 +09:00
Code Issues Packages Projects Releases Wiki Activity

iser-target: Fix multi network portal shutdown regression

Browse Source 
commit 2363d19668 upstream.

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

commit 14f4b54fe3
Author: Sagi Grimberg <sagig@mellanox.com>
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.

(Fix up context changes for v3.10.y - nab)

Cc: Sagi Grimberg <sagig@dev.mellanox.co.il>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nicholas Bellinger
2014-06-03 18:27:52 -07:00
committed by Greg Kroah-Hartman
parent c2334086a4
commit 96f27d2649
2 changed files with 7 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/target/iscsi/iscsi_target.c
View File

@@ -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;
}

10
drivers/target/iscsi/iscsi_target_tpg.c
View File

@@ -175,14 +175,16 @@ void iscsit_put_tpg(struct iscsi_portal_group *tpg)
static void iscsit_clear_tpg_np_login_thread(
struct iscsi_tpg_np *tpg_np,
struct iscsi_portal_group *tpg)
struct iscsi_portal_group *tpg,
bool shutdown)
{
if (!tpg_np->tpg_np) {
pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n");
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);
}
@@ -198,7 +200,7 @@ void iscsit_clear_tpg_np_login_threads(
continue;
}
spin_unlock(&tpg->tpg_np_lock);
iscsit_clear_tpg_np_login_thread(tpg_np, tpg);
iscsit_clear_tpg_np_login_thread(tpg_np, tpg, false);
spin_lock(&tpg->tpg_np_lock);
}
spin_unlock(&tpg->tpg_np_lock);
@@ -521,7 +523,7 @@ static int iscsit_tpg_release_np(
struct iscsi_portal_group *tpg,
struct iscsi_np *np)
{
iscsit_clear_tpg_np_login_thread(tpg_np, tpg);
iscsit_clear_tpg_np_login_thread(tpg_np, tpg, true);
pr_debug("CORE[%s] - Removed Network Portal: %s:%hu,%hu on %s\n",
tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt,