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authorUrsula Braun <ursula.braun@de.ibm.com>2010-01-11 02:50:51 +0000
committerDavid S. Miller <davem@davemloft.net>2010-01-13 20:34:56 -0800
commit84b66683dba002f4cce2aaf78bf45debfaf22795 (patch)
treebd26657a46dc210e700051f91d3c4ec9c41acc03 /drivers/s390/net
parent76b11f8e270f04851774ff64b16e29e5a43d3a1a (diff)
qeth: avoid recovery during device online setting
If a qeth device is set online, several initialisation steps are performed. If a failure in one of these steps occurs, the qeth device is reset into DOWN state. If due to the failure a qeth recovery is scheduled and started in another thread, this might cause all kinds of conflicts, even a kernel panic. The patch forbids scheduling of a qeth recovery while online processing is performed till the card is in state SOFTSETUP. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390/net')
-rw-r--r--drivers/s390/net/qeth_l2_main.c1
-rw-r--r--drivers/s390/net/qeth_l3_main.c2
2 files changed, 0 insertions, 3 deletions
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 74ba388a159..c3258b0dd64 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -927,7 +927,6 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
QETH_DBF_TEXT(SETUP, 2, "setonlin");
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
- qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
recover_flag = card->state;
rc = qeth_core_hardsetup_card(card);
if (rc) {
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 337d03fb045..5475834ab91 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -3338,8 +3338,6 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
QETH_DBF_TEXT(SETUP, 2, "setonlin");
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
- qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
-
recover_flag = card->state;
rc = qeth_core_hardsetup_card(card);
if (rc) {