-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define OAP_MAGIC 8675309
+extern atomic_t osc_pool_req_count;
+extern unsigned int osc_reqpool_maxreqcount;
+extern struct ptlrpc_request_pool *osc_rq_pool;
+
+struct lu_env;
+
+enum async_flags {
+ ASYNC_READY = 0x1, /* ap_make_ready will not be called before this
+ page is added to an rpc */
+ ASYNC_URGENT = 0x2, /* page must be put into an RPC before return */
+ ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called
+ to give the caller a chance to update
+ or cancel the size of the io */
+ ASYNC_HP = 0x10,
+};
+
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 list_head oap_pending_item;
+ struct list_head oap_rpc_item;
- obd_off oap_obj_off;
+ loff_t oap_obj_off;
unsigned oap_page_off;
enum async_flags oap_async_flags;
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 osc_object *oap_obj;
- struct obd_async_page_ops *oap_caller_ops;
- void *oap_caller_data;
- struct list_head oap_page_list;
- struct ldlm_lock *oap_ldlm_lock;
- spinlock_t oap_lock;
+ spinlock_t oap_lock;
};
#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))
+static inline struct osc_async_page *brw_page2oap(struct brw_page *pga)
+{
+ return (struct osc_async_page *)container_of(pga, struct osc_async_page,
+ oap_brw_page);
+}
struct osc_cache_waiter {
- struct list_head ocw_entry;
- cfs_waitq_t ocw_waitq;
- struct osc_async_page *ocw_oap;
- int ocw_rc;
+ struct list_head ocw_entry;
+ wait_queue_head_t ocw_waitq;
+ struct osc_async_page *ocw_oap;
+ int ocw_grant;
+ int ocw_rc;
};
-#define OSCC_FLAG_RECOVERING 0x01
-#define OSCC_FLAG_CREATING 0x02
-#define OSCC_FLAG_NOSPC 0x04 /* can't create more objects on OST */
-#define OSCC_FLAG_SYNC_IN_PROGRESS 0x08 /* only allow one thread to sync */
-#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,
- struct lov_stripe_md **ea, struct obd_trans_info *oti);
-void oscc_init(struct obd_device *obd);
void osc_wake_cache_waiters(struct client_obd *cli);
+int osc_shrink_grant_to_target(struct client_obd *cli, __u64 target_bytes);
+void osc_update_next_shrink(struct client_obd *cli);
-#ifdef LPROCFS
+/*
+ * cl integration.
+ */
+#include <cl_object.h>
+
+extern struct ptlrpc_request_set *PTLRPCD_SET;
+
+typedef int (*osc_enqueue_upcall_f)(void *cookie, struct lustre_handle *lockh,
+ int rc);
+
+int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
+ __u64 *flags, union ldlm_policy_data *policy,
+ struct ost_lvb *lvb, int kms_valid,
+ osc_enqueue_upcall_f upcall,
+ void *cookie, struct ldlm_enqueue_info *einfo,
+ struct ptlrpc_request_set *rqset, int async, int agl);
+
+int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id,
+ __u32 type, union ldlm_policy_data *policy, __u32 mode,
+ __u64 *flags, void *data, struct lustre_handle *lockh,
+ int unref);
+
+int osc_setattr_async(struct obd_export *exp, struct obdo *oa,
+ obd_enqueue_update_f upcall, void *cookie,
+ struct ptlrpc_request_set *rqset);
+int osc_punch_base(struct obd_export *exp, struct obdo *oa,
+ obd_enqueue_update_f upcall, void *cookie,
+ struct ptlrpc_request_set *rqset);
+int osc_sync_base(struct osc_object *obj, struct obdo *oa,
+ obd_enqueue_update_f upcall, void *cookie,
+ struct ptlrpc_request_set *rqset);
+
+int osc_process_config_base(struct obd_device *obd, struct lustre_cfg *cfg);
+int osc_build_rpc(const struct lu_env *env, struct client_obd *cli,
+ struct list_head *ext_list, int cmd);
+long osc_lru_shrink(const struct lu_env *env, struct client_obd *cli,
+ long target, bool force);
+long osc_lru_reclaim(struct client_obd *cli, unsigned long npages);
+
+extern spinlock_t osc_ast_guard;
+extern struct lu_kmem_descr osc_caches[];
+extern struct lock_class_key osc_ast_guard_class;
+
+unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock);
+
+int osc_cleanup(struct obd_device *obd);
+int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
+
+#ifdef CONFIG_PROC_FS
+extern struct lprocfs_vars lprocfs_osc_obd_vars[];
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
+extern struct lu_device_type osc_device_type;
+
static inline int osc_recoverable_error(int rc)
{
- return (rc == -EIO || rc == -EROFS || rc == -ENOMEM || rc == -EAGAIN);
+ return (rc == -EIO || rc == -EROFS || rc == -ENOMEM ||
+ rc == -EAGAIN || rc == -EINPROGRESS);
+}
+
+static inline unsigned long rpcs_in_flight(struct client_obd *cli)
+{
+ return cli->cl_r_in_flight + cli->cl_w_in_flight;
}
-/* return 1 if osc should be resend request */
-static inline int osc_should_resend(int resend, struct client_obd *cli)
+static inline char *cli_name(struct client_obd *cli)
{
- return atomic_read(&cli->cl_resends) ?
- atomic_read(&cli->cl_resends) > resend : 1;
+ return cli->cl_import->imp_obd->obd_name;
}
#ifndef min_t
({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
#endif
+struct osc_device {
+ struct cl_device od_cl;
+ struct obd_export *od_exp;
+
+ /* Write stats is actually protected by client_obd's lock. */
+ struct osc_stats {
+ uint64_t os_lockless_writes; /* by bytes */
+ uint64_t os_lockless_reads; /* by bytes */
+ uint64_t os_lockless_truncates; /* by times */
+ } od_stats;
+
+ /* configuration item(s) */
+ int od_contention_time;
+ int od_lockless_truncate;
+};
+
+static inline struct osc_device *obd2osc_dev(const struct obd_device *d)
+{
+ return container_of0(d->obd_lu_dev, struct osc_device, od_cl.cd_lu_dev);
+}
+
+extern struct kmem_cache *osc_quota_kmem;
+struct osc_quota_info {
+ /** linkage for quota hash table */
+ struct hlist_node oqi_hash;
+ u32 oqi_id;
+};
+
+struct osc_async_args {
+ struct obd_info *aa_oi;
+};
+
+int osc_quota_setup(struct obd_device *obd);
+int osc_quota_cleanup(struct obd_device *obd);
+int osc_quota_setdq(struct client_obd *cli, const unsigned int qid[],
+ u64 valid, u32 flags);
+int osc_quota_chkdq(struct client_obd *cli, const unsigned int qid[]);
+int osc_quotactl(struct obd_device *unused, struct obd_export *exp,
+ struct obd_quotactl *oqctl);
+void osc_inc_unstable_pages(struct ptlrpc_request *req);
+void osc_dec_unstable_pages(struct ptlrpc_request *req);
+bool osc_over_unstable_soft_limit(struct client_obd *cli);
+/**
+ * Bit flags for osc_dlm_lock_at_pageoff().
+ */
+enum osc_dap_flags {
+ /**
+ * Just check if the desired lock exists, it won't hold reference
+ * count on lock.
+ */
+ OSC_DAP_FL_TEST_LOCK = 1 << 0,
+ /**
+ * Return the lock even if it is being canceled.
+ */
+ OSC_DAP_FL_CANCELING = 1 << 1
+};
+struct ldlm_lock *osc_dlmlock_at_pgoff(const struct lu_env *env,
+ struct osc_object *obj, pgoff_t index,
+ enum osc_dap_flags flags);
+void osc_pack_req_body(struct ptlrpc_request *req, struct obdo *oa);
+int osc_object_invalidate(const struct lu_env *env, struct osc_object *osc);
#endif /* OSC_INTERNAL_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff