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| author | Roland Dreier <roland@purestorage.com> | 2011-06-22 01:02:21 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-06-23 23:59:45 +0000 |
| commit | 233888644d80cc44330062e5e978c9e3a14c9cb9 (patch) | |
| tree | 88b2b59e76a5f73d27ebda4a0e4d5a3bac49a741 | |
| parent | 7fd29aa920273b70be50c14c4b7e2213fb6623ce (diff) | |
| download | linux-3.10-233888644d80cc44330062e5e978c9e3a14c9cb9.tar.gz linux-3.10-233888644d80cc44330062e5e978c9e3a14c9cb9.tar.bz2 linux-3.10-233888644d80cc44330062e5e978c9e3a14c9cb9.zip | |
target: Convert transport_deregister_session_configfs nacl_sess_lock to save irq state
This patch converts transport_deregister_session_configfs() to save/restore
spinlock IRQ state for struct se_node_acl->nacl_sess_lock access as tcm_qla2xxx
logic expects to call transport_deregister_session_configfs() code with
irq save already held for struct qla_hw_data.
Reported-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
| -rw-r--r-- | drivers/target/target_core_transport.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 4dafeb8b563..4b9b7169bdd 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -536,13 +536,13 @@ EXPORT_SYMBOL(transport_register_session); void transport_deregister_session_configfs(struct se_session *se_sess) { struct se_node_acl *se_nacl; - + unsigned long flags; /* * Used by struct se_node_acl's under ConfigFS to locate active struct se_session */ se_nacl = se_sess->se_node_acl; if ((se_nacl)) { - spin_lock_irq(&se_nacl->nacl_sess_lock); + spin_lock_irqsave(&se_nacl->nacl_sess_lock, flags); list_del(&se_sess->sess_acl_list); /* * If the session list is empty, then clear the pointer. @@ -556,7 +556,7 @@ void transport_deregister_session_configfs(struct se_session *se_sess) se_nacl->acl_sess_list.prev, struct se_session, sess_acl_list); } - spin_unlock_irq(&se_nacl->nacl_sess_lock); + spin_unlock_irqrestore(&se_nacl->nacl_sess_lock, flags); } } EXPORT_SYMBOL(transport_deregister_session_configfs); |