/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2003 Cluster File Systems, Inc.
- *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
*/
#ifndef OSC_INTERNAL_H
struct osc_async_page {
int oap_magic;
+ unsigned short oap_cmd;
+ unsigned short oap_interrupted:1;
+
struct list_head oap_pending_item;
struct list_head oap_urgent_item;
struct list_head oap_rpc_item;
- struct page *oap_page;
- int oap_cmd;
obd_off oap_obj_off;
- obd_off oap_page_off;
- int oap_count;
- obd_flags oap_brw_flags;
+ unsigned oap_page_off;
enum async_flags oap_async_flags;
- unsigned long oap_interrupted:1;
- struct obd_io_group *oap_oig;
+ struct brw_page oap_brw_page;
+
struct oig_callback_context oap_occ;
+ struct obd_io_group *oap_oig;
struct ptlrpc_request *oap_request;
struct client_obd *oap_cli;
struct lov_oinfo *oap_loi;
struct obd_async_page_ops *oap_caller_ops;
- void *oap_caller_data;
+ void *oap_caller_data;
+ struct list_head oap_page_list;
+ struct ldlm_lock *oap_ldlm_lock;
+ spinlock_t oap_lock;
};
-#define OAP_FROM_COOKIE(c) \
- (LASSERT(((struct osc_async_page *)(c))->oap_magic == OAP_MAGIC), \
+#define oap_page oap_brw_page.pg
+#define oap_count oap_brw_page.count
+#define oap_brw_flags oap_brw_page.flag
+
+#define OAP_FROM_COOKIE(c) \
+ (LASSERT(((struct osc_async_page *)(c))->oap_magic == OAP_MAGIC), \
(struct osc_async_page *)(c))
struct osc_cache_waiter {
struct list_head ocw_entry;
- wait_queue_head_t ocw_waitq;
+ cfs_waitq_t ocw_waitq;
struct osc_async_page *ocw_oap;
int ocw_rc;
};
#define OSCC_FLAG_LOW 0x10
#define OSCC_FLAG_EXITING 0x20
+int osc_precreate(struct obd_export *exp);
int osc_create(struct obd_export *exp, struct obdo *oa,
struct lov_stripe_md **ea, struct obd_trans_info *oti);
int osc_real_create(struct obd_export *exp, struct obdo *oa,
void oscc_init(struct obd_device *obd);
void osc_wake_cache_waiters(struct client_obd *cli);
-#ifdef __KERNEL__
+#ifdef LPROCFS
int lproc_osc_attach_seqstat(struct obd_device *dev);
+void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars);
#else
static inline int lproc_osc_attach_seqstat(struct obd_device *dev) {return 0;}
+static inline void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars)
+{
+ memset(lvars, 0, sizeof(*lvars));
+}
+#endif
+
+static inline int osc_recoverable_error(int rc)
+{
+ return (rc == -EIO || rc == -EROFS || rc == -ENOMEM || rc == -EAGAIN);
+}
+
+/* return 1 if osc should be resend request */
+static inline int osc_should_resend(int resend, struct client_obd *cli)
+{
+ return atomic_read(&cli->cl_resends) ?
+ atomic_read(&cli->cl_resends) > resend : 1;
+}
+
+#ifndef min_t
+#define min_t(type,x,y) \
+ ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
#endif
#endif /* OSC_INTERNAL_H */