* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, Whamcloud, Inc.
+ * Copyright (c) 2012, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
/* osc_build_res_name() */
#include <obd_ost.h>
#include <cl_object.h>
+#include <lclient.h>
#include "osc_internal.h"
/** \defgroup osc osc
* page writeback from happening. */
struct osc_extent *oi_trunc;
+ int oi_lru_reserved;
+
struct obd_info oi_info;
struct obdo oi_oa;
struct osc_async_cbargs {
+ bool opc_rpc_sent;
int opc_rc;
- cfs_completion_t opc_sync;
+ struct completion opc_sync;
} oi_cbarg;
};
struct osc_io os_io;
};
+#define OTI_PVEC_SIZE 256
struct osc_thread_info {
struct ldlm_res_id oti_resname;
ldlm_policy_data_t oti_policy;
struct cl_attr oti_attr;
struct lustre_handle oti_handle;
struct cl_page_list oti_plist;
- struct cl_io oti_io;
+ struct cl_io oti_io;
+ struct cl_page *oti_pvec[OTI_PVEC_SIZE];
};
struct osc_object {
*/
int oo_contended;
cfs_time_t oo_contention_time;
-#ifdef INVARIANT_CHECK
+#ifdef CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK
/**
* IO context used for invariant checks in osc_lock_has_pages().
*/
struct cl_io oo_debug_io;
/** Serialization object for osc_object::oo_debug_io. */
- cfs_mutex_t oo_debug_mutex;
+ struct mutex oo_debug_mutex;
#endif
/**
* List of pages in transfer.
* Lock, protecting ccc_object::cob_inflight, because a seat-belt is
* locked during take-off and landing.
*/
- cfs_spinlock_t oo_seatbelt;
+ spinlock_t oo_seatbelt;
/**
* used by the osc to keep track of what objects to build into rpcs.
/** Protect extent tree. Will be used to protect
* oo_{read|write}_pages soon. */
- cfs_spinlock_t oo_lock;
+ spinlock_t oo_lock;
};
static inline void osc_object_lock(struct osc_object *obj)
{
- cfs_spin_lock(&obj->oo_lock);
+ spin_lock(&obj->oo_lock);
}
static inline int osc_object_trylock(struct osc_object *obj)
{
- return cfs_spin_trylock(&obj->oo_lock);
+ return spin_trylock(&obj->oo_lock);
}
static inline void osc_object_unlock(struct osc_object *obj)
{
- cfs_spin_unlock(&obj->oo_lock);
+ spin_unlock(&obj->oo_lock);
}
static inline int osc_object_is_locked(struct osc_object *obj)
{
- return cfs_spin_is_locked(&obj->oo_lock);
+ return spin_is_locked(&obj->oo_lock);
}
/*
/** lock value block */
struct ost_lvb ols_lvb;
/** DLM flags with which osc_lock::ols_lock was enqueued */
- int ols_flags;
+ __u64 ols_flags;
/** osc_lock::ols_lock handle */
struct lustre_handle ols_handle;
struct ldlm_enqueue_info ols_einfo;
*/
ops_temp:1,
/**
- * Set if the page must be transferred with OBD_BRW_SRVLOCK.
- */
- ops_srvlock:1;
- /**
- * Linkage into a per-osc_object list of pages in flight. For
- * debugging.
- */
- cfs_list_t ops_inflight;
- /**
- * Thread that submitted this page for transfer. For debugging.
- */
- cfs_task_t *ops_submitter;
- /**
- * Submit time - the time when the page is starting RPC. For debugging.
- */
- cfs_time_t ops_submit_time;
+ * in LRU?
+ */
+ ops_in_lru:1,
+ /**
+ * Set if the page must be transferred with OBD_BRW_SRVLOCK.
+ */
+ ops_srvlock:1;
+ /**
+ * lru page list. See osc_lru_{del|use}() in osc_page.c for usage.
+ */
+ cfs_list_t ops_lru;
+ /**
+ * Linkage into a per-osc_object list of pages in flight. For
+ * debugging.
+ */
+ cfs_list_t ops_inflight;
+ /**
+ * Thread that submitted this page for transfer. For debugging.
+ */
+ struct task_struct *ops_submitter;
+ /**
+ * Submit time - the time when the page is starting RPC. For debugging.
+ */
+ cfs_time_t ops_submit_time;
/**
* A lock of which we hold a reference covers this page. Only used by
struct cl_lock *ops_lock;
};
-extern cfs_mem_cache_t *osc_page_kmem;
-extern cfs_mem_cache_t *osc_lock_kmem;
-extern cfs_mem_cache_t *osc_object_kmem;
-extern cfs_mem_cache_t *osc_thread_kmem;
-extern cfs_mem_cache_t *osc_session_kmem;
-extern cfs_mem_cache_t *osc_req_kmem;
-extern cfs_mem_cache_t *osc_extent_kmem;
+extern struct kmem_cache *osc_lock_kmem;
+extern struct kmem_cache *osc_object_kmem;
+extern struct kmem_cache *osc_thread_kmem;
+extern struct kmem_cache *osc_session_kmem;
+extern struct kmem_cache *osc_req_kmem;
+extern struct kmem_cache *osc_extent_kmem;
extern struct lu_device_type osc_device_type;
extern struct lu_context_key osc_key;
struct lu_object *osc_object_alloc(const struct lu_env *env,
const struct lu_object_header *hdr,
struct lu_device *dev);
-struct cl_page *osc_page_init (const struct lu_env *env,
- struct cl_object *obj,
- struct cl_page *page, cfs_page_t *vmpage);
+int osc_page_init(const struct lu_env *env, struct cl_object *obj,
+ struct cl_page *page, struct page *vmpage);
-void osc_lock_build_res(const struct lu_env *env, const struct osc_object *obj,
- struct ldlm_res_id *resname);
void osc_index2policy (ldlm_policy_data_t *policy, const struct cl_object *obj,
pgoff_t start, pgoff_t end);
int osc_lvb_print (const struct lu_env *env, void *cookie,
lu_printer_t p, const struct ost_lvb *lvb);
+void osc_lru_add_batch(struct client_obd *cli, cfs_list_t *list);
void osc_page_submit(const struct lu_env *env, struct osc_page *opg,
enum cl_req_type crt, int brw_flags);
int osc_cancel_async_page(const struct lu_env *env, struct osc_page *ops);
int osc_set_async_flags(struct osc_object *obj, struct osc_page *opg,
obd_flag async_flags);
int osc_prep_async_page(struct osc_object *osc, struct osc_page *ops,
- cfs_page_t *page, loff_t offset);
+ struct page *page, loff_t offset);
int osc_queue_async_io(const struct lu_env *env, struct cl_io *io,
struct osc_page *ops);
int osc_teardown_async_page(const struct lu_env *env, struct osc_object *obj,
OES_TRUNC = 6, /** being truncated */
OES_STATE_MAX
};
-#define OES_STRINGS { "inv", "active", "cache", "locking", "lockdone", "rpc", \
- "trunc", NULL }
/**
* osc_extent data to manage dirty pages.
pgoff_t oe_max_end;
/** waitqueue - for those who want to be notified if this extent's
* state has changed. */
- cfs_waitq_t oe_waitq;
+ wait_queue_head_t oe_waitq;
/** lock covering this extent */
struct cl_lock *oe_osclock;
/** terminator of this extent. Must be true if this extent is in IO. */
- cfs_task_t *oe_owner;
+ struct task_struct *oe_owner;
/** return value of writeback. If somebody is waiting for this extent,
* this value can be known by outside world. */
int oe_rc;