* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2014, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* State maintained by osc layer for each IO context.
*/
struct osc_io {
- /** super class */
- struct cl_io_slice oi_cl;
- /** true if this io is lockless. */
- int oi_lockless;
+ /** super class */
+ struct cl_io_slice oi_cl;
+ /** true if this io is lockless. */
+ int oi_lockless:1,
+ /** true if this io is counted as active IO */
+ oi_is_active:1;
/** how many LRU pages are reserved for this IO */
unsigned long oi_lru_reserved;
};
/**
- * State of transfer for osc.
- */
-struct osc_req {
- struct cl_req_slice or_cl;
-};
-
-/**
* State maintained by osc layer for the duration of a system call.
*/
struct osc_session {
#define OTI_PVEC_SIZE 256
struct osc_thread_info {
- struct ldlm_res_id oti_resname;
- ldlm_policy_data_t oti_policy;
- struct cl_lock_descr oti_descr;
- struct cl_attr oti_attr;
- struct lustre_handle oti_handle;
- struct cl_page_list oti_plist;
+ struct ldlm_res_id oti_resname;
+ union ldlm_policy_data oti_policy;
+ struct cl_lock_descr oti_descr;
+ struct cl_attr oti_attr;
+ struct lustre_handle oti_handle;
+ struct cl_page_list oti_plist;
struct cl_io oti_io;
void *oti_pvec[OTI_PVEC_SIZE];
/**
pgoff_t oti_next_index;
pgoff_t oti_fn_index; /* first non-overlapped index */
struct cl_sync_io oti_anchor;
+ struct cl_req_attr oti_req_attr;
+ struct lu_buf oti_ladvise_buf;
};
struct osc_object {
/**
* Radix tree for caching pages
*/
- struct radix_tree_root oo_tree;
spinlock_t oo_tree_lock;
+ struct radix_tree_root oo_tree;
unsigned long oo_npages;
/* Protect osc_lock this osc_object has */
- spinlock_t oo_ol_spin;
struct list_head oo_ol_list;
+ spinlock_t oo_ol_spin;
+
+ /** number of active IOs of this object */
+ atomic_t oo_nr_ios;
+ wait_queue_head_t oo_io_waitq;
};
static inline void osc_object_lock(struct osc_object *obj)
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;
const struct cl_io *io);
int osc_io_init (const struct lu_env *env,
struct cl_object *obj, struct cl_io *io);
-int osc_req_init (const struct lu_env *env, struct cl_device *dev,
- struct cl_req *req);
struct lu_object *osc_object_alloc(const struct lu_env *env,
const struct lu_object_header *hdr,
struct lu_device *dev);
int osc_page_init(const struct lu_env *env, struct cl_object *obj,
struct cl_page *page, pgoff_t ind);
-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_index2policy(union ldlm_policy_data *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, struct list_head *list);
void osc_page_submit(const struct lu_env *env, struct osc_page *opg,
struct osc_page *ops);
int osc_queue_sync_pages(const struct lu_env *env, struct osc_object *obj,
struct list_head *list, int cmd, int brw_flags);
-int osc_cache_truncate_start(const struct lu_env *env, struct osc_io *oio,
- struct osc_object *obj, __u64 size);
-void osc_cache_truncate_end(const struct lu_env *env, struct osc_io *oio,
- struct osc_object *obj);
+int osc_cache_truncate_start(const struct lu_env *env, struct osc_object *obj,
+ __u64 size, struct osc_extent **extp);
+void osc_cache_truncate_end(const struct lu_env *env, struct osc_extent *ext);
int osc_cache_writeback_range(const struct lu_env *env, struct osc_object *obj,
pgoff_t start, pgoff_t end, int hp, int discard);
int osc_cache_wait_range(const struct lu_env *env, struct osc_object *obj,
return (struct cl_object *)&obj->oo_cl;
}
-static inline ldlm_mode_t osc_cl_lock2ldlm(enum cl_lock_mode mode)
+static inline enum ldlm_mode osc_cl_lock2ldlm(enum cl_lock_mode mode)
{
- LASSERT(mode == CLM_READ || mode == CLM_WRITE || mode == CLM_GROUP);
- if (mode == CLM_READ)
- return LCK_PR;
- else if (mode == CLM_WRITE)
- return LCK_PW;
- else
- return LCK_GROUP;
+ LASSERT(mode == CLM_READ || mode == CLM_WRITE || mode == CLM_GROUP);
+ if (mode == CLM_READ)
+ return LCK_PR;
+ if (mode == CLM_WRITE)
+ return LCK_PW;
+ return LCK_GROUP;
}
-static inline enum cl_lock_mode osc_ldlm2cl_lock(ldlm_mode_t mode)
+static inline enum cl_lock_mode osc_ldlm2cl_lock(enum ldlm_mode mode)
{
- LASSERT(mode == LCK_PR || mode == LCK_PW || mode == LCK_GROUP);
- if (mode == LCK_PR)
- return CLM_READ;
- else if (mode == LCK_PW)
- return CLM_WRITE;
- else
- return CLM_GROUP;
+ LASSERT(mode == LCK_PR || mode == LCK_PW || mode == LCK_GROUP);
+ if (mode == LCK_PR)
+ return CLM_READ;
+ if (mode == LCK_PW)
+ return CLM_WRITE;
+ return CLM_GROUP;
}
static inline struct osc_page *cl2osc_page(const struct cl_page_slice *slice)
return (struct osc_page *)container_of(oap, struct osc_page, ops_oap);
}
+static inline struct osc_page *
+osc_cl_page_osc(struct cl_page *page, struct osc_object *osc)
+{
+ const struct cl_page_slice *slice;
+
+ LASSERT(osc != NULL);
+ slice = cl_object_page_slice(&osc->oo_cl, page);
+ return cl2osc_page(slice);
+}
+
static inline struct osc_lock *cl2osc_lock(const struct cl_lock_slice *slice)
{
LINVRNT(osc_is_object(&slice->cls_obj->co_lu));
oe_rw:1,
/** sync extent, queued by osc_queue_sync_pages() */
oe_sync:1,
+ /** set if this extent has partial, sync pages.
+ * Extents with partial page(s) can't merge with others in RPC */
+ oe_no_merge:1,
oe_srvlock:1,
oe_memalloc:1,
/** an ACTIVE extent is going to be truncated, so when this extent
git://git.whamcloud.com / fs / lustre-release.git / blobdiff