[PATCH] s390: qeth driver fixes [5/6]
[PATCH 8/9] s390: qeth driver fixes [5/6]
From: Frank Pavlic <fpavlic@de.ibm.com>
fix kernel panic in qdio queue handling.
qeth_qdio_clear_card() could be invoked by 2 CPUs
simultaneously (for example reboot event and recovery).
Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h
index 22a7ffb..821383d 100644
--- a/drivers/s390/net/qeth.h
+++ b/drivers/s390/net/qeth.h
@@ -463,6 +463,7 @@
QETH_QDIO_UNINITIALIZED,
QETH_QDIO_ALLOCATED,
QETH_QDIO_ESTABLISHED,
+ QETH_QDIO_CLEANING
};
struct qeth_buffer_pool_entry {
@@ -537,7 +538,7 @@
} __attribute__ ((aligned(256)));
struct qeth_qdio_info {
- volatile enum qeth_qdio_info_states state;
+ atomic_t state;
/* input */
struct qeth_qdio_q *in_q;
struct qeth_qdio_buffer_pool in_buf_pool;