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Diffstat (limited to 'drivers/staging/lustre/lustre/include/obd_class.h')
-rw-r--r--drivers/staging/lustre/lustre/include/obd_class.h103
1 files changed, 65 insertions, 38 deletions
diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h
index 4a29261c514d..34b5fa3f081c 100644
--- a/drivers/staging/lustre/lustre/include/obd_class.h
+++ b/drivers/staging/lustre/lustre/include/obd_class.h
@@ -72,6 +72,7 @@ extern int lustre_get_jobid(char *jobid);
struct lu_device_type;
/* genops.c */
+extern struct list_head obd_types;
struct obd_export *class_conn2export(struct lustre_handle *);
int class_register_type(struct obd_ops *, struct md_ops *,
struct lprocfs_vars *, const char *nm,
@@ -222,20 +223,20 @@ extern void (*class_export_dump_hook)(struct obd_export *);
#endif
-#define class_export_rpc_inc(exp) \
-({ \
- atomic_inc(&(exp)->exp_rpc_count); \
- CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
- (exp), atomic_read(&(exp)->exp_rpc_count)); \
-})
+static inline void class_export_rpc_inc(struct obd_export *exp)
+{
+ atomic_inc(&(exp)->exp_rpc_count);
+ CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n",
+ (exp), atomic_read(&(exp)->exp_rpc_count));
+}
-#define class_export_rpc_dec(exp) \
-({ \
- LASSERT_ATOMIC_POS(&exp->exp_rpc_count); \
- atomic_dec(&(exp)->exp_rpc_count); \
- CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
- (exp), atomic_read(&(exp)->exp_rpc_count)); \
-})
+static inline void class_export_rpc_dec(struct obd_export *exp)
+{
+ LASSERT_ATOMIC_POS(&exp->exp_rpc_count);
+ atomic_dec(&(exp)->exp_rpc_count);
+ CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n",
+ (exp), atomic_read(&(exp)->exp_rpc_count));
+}
#define class_export_lock_get(exp, lock) \
({ \
@@ -332,25 +333,29 @@ void obdo_le_to_cpu(struct obdo *dobdo, struct obdo *sobdo);
/* Ensure obd_setup: used for cleanup which must be called
while obd is stopping */
-#define OBD_CHECK_DEV(obd) \
-do { \
- if (!(obd)) { \
- CERROR("NULL device\n"); \
- return -ENODEV; \
- } \
-} while (0)
+static inline int obd_check_dev(struct obd_device *obd)
+{
+ if (!obd) {
+ CERROR("NULL device\n");
+ return -ENODEV;
+ }
+ return 0;
+}
/* ensure obd_setup and !obd_stopping */
-#define OBD_CHECK_DEV_ACTIVE(obd) \
-do { \
- OBD_CHECK_DEV(obd); \
- if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
- CERROR("Device %d not setup\n", \
- (obd)->obd_minor); \
- return -ENODEV; \
- } \
-} while (0)
+static inline int obd_check_dev_active(struct obd_device *obd)
+{
+ int rc;
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
+ if (!obd->obd_set_up || obd->obd_stopping) {
+ CERROR("Device %d not setup\n", obd->obd_minor);
+ return -ENODEV;
+ }
+ return rc;
+}
#if defined (CONFIG_PROC_FS)
#define OBD_COUNTER_OFFSET(op) \
@@ -593,7 +598,9 @@ static inline int obd_precleanup(struct obd_device *obd,
int rc;
DECLARE_LU_VARS(ldt, d);
- OBD_CHECK_DEV(obd);
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
ldt = obd->obd_type->typ_lu;
d = obd->obd_lu_dev;
if (ldt != NULL && d != NULL) {
@@ -619,7 +626,9 @@ static inline int obd_cleanup(struct obd_device *obd)
int rc;
DECLARE_LU_VARS(ldt, d);
- OBD_CHECK_DEV(obd);
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
ldt = obd->obd_type->typ_lu;
d = obd->obd_lu_dev;
@@ -667,7 +676,9 @@ obd_process_config(struct obd_device *obd, int datalen, void *data)
int rc;
DECLARE_LU_VARS(ldt, d);
- OBD_CHECK_DEV(obd);
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
obd->obd_process_conf = 1;
ldt = obd->obd_type->typ_lu;
@@ -885,7 +896,9 @@ static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
struct obd_device *obd = imp->imp_obd;
int rc;
- OBD_CHECK_DEV_ACTIVE(obd);
+ rc = obd_check_dev_active(obd);
+ if (rc)
+ return rc;
OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
OBD_COUNTER_INCREMENT(obd, add_conn);
@@ -898,7 +911,9 @@ static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
struct obd_device *obd = imp->imp_obd;
int rc;
- OBD_CHECK_DEV_ACTIVE(obd);
+ rc = obd_check_dev_active(obd);
+ if (rc)
+ return rc;
OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
OBD_COUNTER_INCREMENT(obd, del_conn);
@@ -932,7 +947,9 @@ static inline int obd_connect(const struct lu_env *env,
__u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
* check */
- OBD_CHECK_DEV_ACTIVE(obd);
+ rc = obd_check_dev_active(obd);
+ if (rc)
+ return rc;
OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
OBD_COUNTER_INCREMENT(obd, connect);
@@ -954,7 +971,9 @@ static inline int obd_reconnect(const struct lu_env *env,
__u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
* check */
- OBD_CHECK_DEV_ACTIVE(obd);
+ rc = obd_check_dev_active(obd);
+ if (rc)
+ return rc;
OBD_CHECK_DT_OP(obd, reconnect, 0);
OBD_COUNTER_INCREMENT(obd, reconnect);
@@ -1279,7 +1298,9 @@ static inline int obd_notify(struct obd_device *obd,
{
int rc;
- OBD_CHECK_DEV(obd);
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
/* the check for async_recov is a complete hack - I'm hereby
overloading the meaning to also mean "this was called from
@@ -1380,7 +1401,11 @@ static inline int obd_health_check(const struct lu_env *env,
static inline int obd_register_observer(struct obd_device *obd,
struct obd_device *observer)
{
- OBD_CHECK_DEV(obd);
+ int rc;
+
+ rc = obd_check_dev(obd);
+ if (rc)
+ return rc;
down_write(&obd->obd_observer_link_sem);
if (obd->obd_observer && observer) {
up_write(&obd->obd_observer_link_sem);
@@ -1895,6 +1920,8 @@ void class_exit_uuidlist(void);
/* class_obd.c */
extern char obd_jobid_node[];
+extern struct miscdevice obd_psdev;
+extern spinlock_t obd_types_lock;
/* prng.c */
#define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
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