- while setattr, the flags used for distinguish punch operation
*/
__u64 oi_flags;
- /* Lock handle specific for every OSC lock. */
- struct lustre_handle *oi_lockh;
/* lsm data specific for every OSC. */
struct lov_stripe_md *oi_md;
/* obdo data specific for every OSC, if needed at all. */
/* oss capability, its type is obd_capa in client to avoid copy.
* in contrary its type is lustre_capa in OSS. */
void *oi_capa;
- /* transfer jobid from ost_sync() to filter_sync()... */
- char *oi_jobid;
};
struct obd_type {
- struct list_head typ_chain;
- struct obd_ops *typ_dt_ops;
- struct md_ops *typ_md_ops;
- struct proc_dir_entry *typ_procroot;
- struct proc_dir_entry *typ_procsym;
- __u32 typ_sym_filter;
- char *typ_name;
- int typ_refcnt;
- struct lu_device_type *typ_lu;
- spinlock_t obd_type_lock;
+ struct list_head typ_chain;
+ struct obd_ops *typ_dt_ops;
+ struct md_ops *typ_md_ops;
+ struct proc_dir_entry *typ_procroot;
+ struct proc_dir_entry *typ_procsym;
+ __u32 typ_sym_filter;
+ char *typ_name;
+ int typ_refcnt;
+ struct lu_device_type *typ_lu;
+ spinlock_t obd_type_lock;
};
struct brw_page {
obd_flag flag;
};
-/* llog contexts */
-enum llog_ctxt_id {
- LLOG_CONFIG_ORIG_CTXT = 0,
- LLOG_CONFIG_REPL_CTXT,
- LLOG_MDS_OST_ORIG_CTXT,
- LLOG_MDS_OST_REPL_CTXT,
- LLOG_SIZE_ORIG_CTXT,
- LLOG_SIZE_REPL_CTXT,
- LLOG_RD1_ORIG_CTXT,
- LLOG_RD1_REPL_CTXT,
- LLOG_TEST_ORIG_CTXT,
- LLOG_TEST_REPL_CTXT,
- LLOG_LOVEA_ORIG_CTXT,
- LLOG_LOVEA_REPL_CTXT,
- LLOG_CHANGELOG_ORIG_CTXT, /**< changelog generation on mdd */
- LLOG_CHANGELOG_REPL_CTXT, /**< changelog access on clients */
- LLOG_CHANGELOG_USER_ORIG_CTXT, /**< for multiple changelog consumers */
- LLOG_AGENT_ORIG_CTXT, /**< agent requests generation on cdt */
- LLOG_MAX_CTXTS
-};
-
struct timeout_item {
- enum timeout_event ti_event;
- cfs_time_t ti_timeout;
- timeout_cb_t ti_cb;
- void *ti_cb_data;
- cfs_list_t ti_obd_list;
- cfs_list_t ti_chain;
+ enum timeout_event ti_event;
+ cfs_time_t ti_timeout;
+ timeout_cb_t ti_cb;
+ void *ti_cb_data;
+ struct list_head ti_obd_list;
+ struct list_head ti_chain;
};
#define OBD_MAX_RIF_DEFAULT 8
struct mdc_rpc_lock;
struct obd_import;
struct client_obd {
- struct rw_semaphore cl_sem;
+ struct rw_semaphore cl_sem;
struct obd_uuid cl_target_uuid;
struct obd_import *cl_import; /* ptlrpc connection state */
int cl_conn_count;
enum lustre_sec_part cl_sp_to;
struct sptlrpc_flavor cl_flvr_mgc; /* fixed flavor of mgc->mgs */
- /* the grant values are protected by loi_list_lock below */
- long cl_dirty; /* all _dirty_ in bytes */
- long cl_dirty_max; /* allowed w/o rpc */
- long cl_dirty_transit; /* dirty synchronous */
- long cl_avail_grant; /* bytes of credit for ost */
- long cl_lost_grant; /* lost credits (trunc) */
+ /* the grant values are protected by loi_list_lock below */
+ long cl_dirty_pages; /* all _dirty_ in pages */
+ long cl_dirty_max_pages; /* allowed w/o rpc */
+ long cl_dirty_transit; /* dirty synchronous */
+ long cl_avail_grant; /* bytes of credit for ost */
+ long cl_lost_grant; /* lost credits (trunc) */
/* since we allocate grant by blocks, we don't know how many grant will
* be used to add a page into cache. As a solution, we reserve maximum
* grant before trying to dirty a page and unreserve the rest.
* See osc_{reserve|unreserve}_grant for details. */
- long cl_reserved_grant;
- cfs_list_t cl_cache_waiters; /* waiting for cache/grant */
- cfs_time_t cl_next_shrink_grant; /* jiffies */
- cfs_list_t cl_grant_shrink_list; /* Timeout event list */
- int cl_grant_shrink_interval; /* seconds */
+ long cl_reserved_grant;
+ struct list_head cl_cache_waiters; /* waiting for cache/grant */
+ cfs_time_t cl_next_shrink_grant; /* jiffies */
+ struct list_head cl_grant_shrink_list; /* Timeout event list */
+ int cl_grant_shrink_interval; /* seconds */
/* A chunk is an optimal size used by osc_extent to determine
* the extent size. A chunk is max(PAGE_CACHE_SIZE, OST block size) */
- int cl_chunkbits;
- int cl_chunk;
- int cl_extent_tax; /* extent overhead, by bytes */
+ int cl_chunkbits;
+ int cl_extent_tax; /* extent overhead, by bytes */
/* keep track of objects that have lois that contain pages which
* have been queued for async brw. this lock also protects the
* NB by Jinshan: though field names are still _loi_, but actually
* osc_object{}s are in the list.
*/
- client_obd_lock_t cl_loi_list_lock;
- cfs_list_t cl_loi_ready_list;
- cfs_list_t cl_loi_hp_ready_list;
- cfs_list_t cl_loi_write_list;
- cfs_list_t cl_loi_read_list;
- int cl_r_in_flight;
- int cl_w_in_flight;
+ client_obd_lock_t cl_loi_list_lock;
+ struct list_head cl_loi_ready_list;
+ struct list_head cl_loi_hp_ready_list;
+ struct list_head cl_loi_write_list;
+ struct list_head cl_loi_read_list;
+ int cl_r_in_flight;
+ int cl_w_in_flight;
/* just a sum of the loi/lop pending numbers to be exported by /proc */
- atomic_t cl_pending_w_pages;
- atomic_t cl_pending_r_pages;
- __u32 cl_max_pages_per_rpc;
- int cl_max_rpcs_in_flight;
- struct obd_histogram cl_read_rpc_hist;
- struct obd_histogram cl_write_rpc_hist;
- struct obd_histogram cl_read_page_hist;
- struct obd_histogram cl_write_page_hist;
- struct obd_histogram cl_read_offset_hist;
- struct obd_histogram cl_write_offset_hist;
+ atomic_t cl_pending_w_pages;
+ atomic_t cl_pending_r_pages;
+ __u32 cl_max_pages_per_rpc;
+ int cl_max_rpcs_in_flight;
+ struct obd_histogram cl_read_rpc_hist;
+ struct obd_histogram cl_write_rpc_hist;
+ struct obd_histogram cl_read_page_hist;
+ struct obd_histogram cl_write_page_hist;
+ struct obd_histogram cl_read_offset_hist;
+ struct obd_histogram cl_write_offset_hist;
/* lru for osc caching pages */
struct cl_client_cache *cl_cache;
- cfs_list_t cl_lru_osc; /* member of cl_cache->ccc_lru */
+ struct list_head cl_lru_osc; /* member of cl_cache->ccc_lru */
atomic_t *cl_lru_left;
atomic_t cl_lru_busy;
atomic_t cl_lru_shrinkers;
atomic_t cl_lru_in_list;
- cfs_list_t cl_lru_list; /* lru page list */
+ struct list_head cl_lru_list; /* lru page list */
client_obd_lock_t cl_lru_list_lock; /* page list protector */
atomic_t cl_unstable_count;
/* number of in flight destroy rpcs is limited to max_rpcs_in_flight */
- atomic_t cl_destroy_in_flight;
- wait_queue_head_t cl_destroy_waitq;
+ atomic_t cl_destroy_in_flight;
+ wait_queue_head_t cl_destroy_waitq;
struct mdc_rpc_lock *cl_rpc_lock;
struct mdc_rpc_lock *cl_close_lock;
/* mgc datastruct */
- struct mutex cl_mgc_mutex;
+ struct mutex cl_mgc_mutex;
struct local_oid_storage *cl_mgc_los;
- struct dt_object *cl_mgc_configs_dir;
- atomic_t cl_mgc_refcount;
- struct obd_export *cl_mgc_mgsexp;
+ struct dt_object *cl_mgc_configs_dir;
+ atomic_t cl_mgc_refcount;
+ struct obd_export *cl_mgc_mgsexp;
/* checksumming for data sent over the network */
unsigned int cl_checksum:1; /* 0 = disabled, 1 = enabled */
};
struct echo_client_obd {
- struct obd_export *ec_exp; /* the local connection to osc/lov */
+ struct obd_export *ec_exp; /* the local connection to osc/lov */
spinlock_t ec_lock;
- cfs_list_t ec_objects;
- cfs_list_t ec_locks;
- int ec_nstripes;
- __u64 ec_unique;
+ struct list_head ec_objects;
+ struct list_head ec_locks;
+ int ec_nstripes;
+ __u64 ec_unique;
};
/* Generic subset of OSTs */
#define OBD_STATFS_CACHE_SECONDS 1
struct lov_tgt_desc {
- cfs_list_t ltd_kill;
+ struct list_head ltd_kill;
struct obd_uuid ltd_uuid;
struct obd_device *ltd_obd;
struct obd_export *ltd_exp;
struct niobuf_local {
__u64 lnb_file_offset;
__u32 lnb_page_offset;
- __u32 len;
- __u32 flags;
- struct page *page;
- struct dentry *dentry;
- int lnb_grant_used;
- int rc;
+ __u32 lnb_len;
+ __u32 lnb_flags;
+ struct page *lnb_page;
+ void *lnb_data;
+ int lnb_rc;
};
#define LUSTRE_FLD_NAME "fld"
#define LUSTRE_MGS_OBDNAME "MGS"
#define LUSTRE_MGC_OBDNAME "MGC"
-static inline int is_osp_on_mdt(char *name)
-{
- char *ptr;
-
- ptr = strrchr(name, '-');
- if (ptr == NULL) {
- CERROR("%s is not a obdname\n", name);
- return 0;
- }
-
- /* 1.8 OSC/OSP name on MDT is fsname-OSTxxxx-osc */
- if (strncmp(ptr + 1, "osc", 3) == 0)
- return 1;
-
- if (strncmp(ptr + 1, "MDT", 3) != 0)
- return 0;
-
- while (*(--ptr) != '-' && ptr != name);
-
- if (ptr == name)
- return 0;
-
- if (strncmp(ptr + 1, LUSTRE_OSP_NAME, strlen(LUSTRE_OSP_NAME)) != 0 &&
- strncmp(ptr + 1, LUSTRE_OSC_NAME, strlen(LUSTRE_OSC_NAME)) != 0)
- return 0;
-
- return 1;
-}
-
-/* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
-#define N_LOCAL_TEMP_PAGE 0x10000000
-
struct obd_trans_info {
- __u64 oti_transno;
- __u64 oti_xid;
- /* Only used on the server side for tracking acks. */
- struct oti_req_ack_lock {
- struct lustre_handle lock;
- __u32 mode;
- } oti_ack_locks[4];
- void *oti_handle;
- struct llog_cookie oti_onecookie;
- struct llog_cookie *oti_logcookies;
- int oti_numcookies;
- /** synchronous write is needed */
- unsigned long oti_sync_write:1;
-
- /* initial thread handling transaction */
- struct ptlrpc_thread * oti_thread;
- __u32 oti_conn_cnt;
- /** VBR: versions */
- __u64 oti_pre_version;
- /** JobID */
- char *oti_jobid;
-
- struct obd_uuid *oti_ost_uuid;
+ __u64 oti_xid;
+ /* Only used on the server side for tracking acks. */
+ struct oti_req_ack_lock {
+ struct lustre_handle lock;
+ __u32 mode;
+ } oti_ack_locks[4];
+ void *oti_handle;
+ struct llog_cookie oti_onecookie;
+ struct llog_cookie *oti_logcookies;
+
+ /** VBR: versions */
+ __u64 oti_pre_version;
};
-static inline void oti_init(struct obd_trans_info *oti,
- struct ptlrpc_request *req)
-{
- if (oti == NULL)
- return;
- memset(oti, 0, sizeof(*oti));
-
- if (req == NULL)
- return;
-
- oti->oti_xid = req->rq_xid;
- /** VBR: take versions from request */
- if (req->rq_reqmsg != NULL &&
- lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
- __u64 *pre_version = lustre_msg_get_versions(req->rq_reqmsg);
- oti->oti_pre_version = pre_version ? pre_version[0] : 0;
- oti->oti_transno = lustre_msg_get_transno(req->rq_reqmsg);
- }
-
- /** called from mds_create_objects */
- if (req->rq_repmsg != NULL)
- oti->oti_transno = lustre_msg_get_transno(req->rq_repmsg);
- oti->oti_thread = req->rq_svc_thread;
- if (req->rq_reqmsg != NULL)
- oti->oti_conn_cnt = lustre_msg_get_conn_cnt(req->rq_reqmsg);
-}
-
-static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
-{
- if (!oti)
- return;
-
- if (num_cookies == 1)
- oti->oti_logcookies = &oti->oti_onecookie;
- else
- OBD_ALLOC_LARGE(oti->oti_logcookies,
- num_cookies * sizeof(oti->oti_onecookie));
-
- oti->oti_numcookies = num_cookies;
-}
-
-static inline void oti_free_cookies(struct obd_trans_info *oti)
-{
- if (!oti || !oti->oti_logcookies)
- return;
-
- if (oti->oti_logcookies == &oti->oti_onecookie)
- LASSERT(oti->oti_numcookies == 1);
- else
- OBD_FREE_LARGE(oti->oti_logcookies,
- oti->oti_numcookies*sizeof(oti->oti_onecookie));
- oti->oti_logcookies = NULL;
- oti->oti_numcookies = 0;
-}
-
/*
* Events signalled through obd_notify() upcall-chain.
*/
};
struct obd_llog_group {
- int olg_seq;
struct llog_ctxt *olg_ctxts[LLOG_MAX_CTXTS];
wait_queue_head_t olg_waitq;
spinlock_t olg_lock;
obd_starting:1, /* started setup */
obd_force:1, /* cleanup with > 0 obd refcount */
obd_fail:1, /* cleanup with failover */
- obd_async_recov:1, /* allow asynchronous orphan cleanup */
obd_no_conn:1, /* deny new connections */
obd_inactive:1, /* device active/inactive
* (for /proc/status only!!) */
cfs_hash_t *obd_nid_hash;
/* nid stats body */
cfs_hash_t *obd_nid_stats_hash;
- cfs_list_t obd_nid_stats;
- atomic_t obd_refcount;
- cfs_list_t obd_exports;
- cfs_list_t obd_unlinked_exports;
- cfs_list_t obd_delayed_exports;
+ struct list_head obd_nid_stats;
+ atomic_t obd_refcount;
+ struct list_head obd_exports;
+ struct list_head obd_unlinked_exports;
+ struct list_head obd_delayed_exports;
struct list_head obd_lwp_list;
int obd_num_exports;
spinlock_t obd_nid_lock;
struct obd_notify_upcall obd_upcall;
struct obd_export *obd_self_export;
struct obd_export *obd_lwp_export;
- /* list of exports in LRU order, for ping evictor, with obd_dev_lock */
- cfs_list_t obd_exports_timed;
- time_t obd_eviction_timer; /* for ping evictor */
+ /* list of exports in LRU order, for ping evictor, with obd_dev_lock */
+ struct list_head obd_exports_timed;
+ time_t obd_eviction_timer; /* for ping evictor */
int obd_max_recoverable_clients;
atomic_t obd_connected_clients;
int obd_stale_clients;
- int obd_delayed_clients;
/* this lock protects all recovery list_heads, timer and
* obd_next_recovery_transno value */
- spinlock_t obd_recovery_task_lock;
- __u64 obd_next_recovery_transno;
- int obd_replayed_requests;
- int obd_requests_queued_for_recovery;
- wait_queue_head_t obd_next_transno_waitq;
+ spinlock_t obd_recovery_task_lock;
+ __u64 obd_next_recovery_transno;
+ int obd_replayed_requests;
+ int obd_requests_queued_for_recovery;
+ wait_queue_head_t obd_next_transno_waitq;
/* protected by obd_recovery_task_lock */
- struct timer_list obd_recovery_timer;
- time_t obd_recovery_start; /* seconds */
- time_t obd_recovery_end; /* seconds, for lprocfs_status */
- int obd_recovery_time_hard;
- int obd_recovery_timeout;
- int obd_recovery_ir_factor;
+ struct timer_list obd_recovery_timer;
+ /* seconds */
+ time_t obd_recovery_start;
+ /* seconds, for lprocfs_status */
+ time_t obd_recovery_end;
+ int obd_recovery_time_hard;
+ int obd_recovery_timeout;
+ int obd_recovery_ir_factor;
/* new recovery stuff from CMD2 */
- struct target_recovery_data obd_recovery_data;
- int obd_replayed_locks;
- atomic_t obd_req_replay_clients;
- atomic_t obd_lock_replay_clients;
+ struct target_recovery_data obd_recovery_data;
+ int obd_replayed_locks;
+ atomic_t obd_req_replay_clients;
+ atomic_t obd_lock_replay_clients;
/* all lists are protected by obd_recovery_task_lock */
- cfs_list_t obd_req_replay_queue;
- cfs_list_t obd_lock_replay_queue;
- cfs_list_t obd_final_req_queue;
+ struct list_head obd_req_replay_queue;
+ struct list_head obd_lock_replay_queue;
+ struct list_head obd_final_req_queue;
union {
#ifdef HAVE_SERVER_SUPPORT
struct lprocfs_seq_vars *obd_vars;
atomic_t obd_evict_inprogress;
wait_queue_head_t obd_evict_inprogress_waitq;
- cfs_list_t obd_evict_list; /* protected with pet_lock */
+ struct list_head obd_evict_list; /* protected with pet_lock */
/**
* Ldlm pool part. Save last calculated SLV and Limit.
*/
rwlock_t obd_pool_lock;
- int obd_pool_limit;
- __u64 obd_pool_slv;
+ int obd_pool_limit;
+ __u64 obd_pool_slv;
/**
* A list of outstanding class_incref()'s against this obd. For
int obd_conn_inprogress;
};
-#define OBD_LLOG_FL_SENDNOW 0x0001
-#define OBD_LLOG_FL_EXIT 0x0002
-
enum obd_cleanup_stage {
/* Special case hack for MDS LOVs */
OBD_CLEANUP_EARLY,
/* get/set_info keys */
#define KEY_ASYNC "async"
-#define KEY_BLOCKSIZE_BITS "blocksize_bits"
-#define KEY_BLOCKSIZE "blocksize"
#define KEY_CAPA_KEY "capa_key"
#define KEY_CHANGELOG_CLEAR "changelog_clear"
#define KEY_FID2PATH "fid2path"
#define KEY_GRANT_SHRINK "grant_shrink"
#define KEY_HSM_COPYTOOL_SEND "hsm_send"
#define KEY_INIT_RECOV_BACKUP "init_recov_bk"
-#define KEY_INIT_RECOV "initial_recov"
#define KEY_INTERMDS "inter_mds"
#define KEY_LAST_ID "last_id"
#define KEY_LAST_FID "last_fid"
#define KEY_LOCK_TO_STRIPE "lock_to_stripe"
#define KEY_LOVDESC "lovdesc"
-#define KEY_LOV_IDX "lov_idx"
#define KEY_MAX_EASIZE "max_easize"
#define KEY_DEFAULT_EASIZE "default_easize"
#define KEY_MAX_COOKIESIZE "max_cookiesize"
/* KEY_SET_INFO in lustre_idl.h */
#define KEY_SPTLRPC_CONF "sptlrpc_conf"
#define KEY_CONNECT_FLAG "connect_flags"
-#define KEY_SYNC_LOCK_CANCEL "sync_lock_cancel"
#define KEY_CACHE_SET "cache_set"
#define KEY_CACHE_LRU_SHRINK "cache_lru_shrink"
-#define KEY_CHANGELOG_INDEX "changelog_index"
#define KEY_OSP_CONNECTED "osp_connected"
struct lu_context;
/* iattr fields and blocks. */
struct iattr op_attr;
-#ifdef __KERNEL__
- unsigned int op_attr_flags;
-#endif
__u64 op_valid;
loff_t op_attr_blocks;
enum mds_op_bias op_bias;
/* Used by readdir */
- __u64 op_hash_offset;
-
- /* Used by readdir */
__u32 op_npages;
/* used to transfer info between the stacks of MD client
__u32 keylen, void *key,
__u32 vallen, void *val,
struct ptlrpc_request_set *set);
- int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
- int (*o_detach)(struct obd_device *dev);
int (*o_setup) (struct obd_device *dev, struct lustre_cfg *cfg);
int (*o_precleanup)(struct obd_device *dev,
enum obd_cleanup_stage cleanup_stage);
int (*o_create)(const struct lu_env *env, struct obd_export *exp,
struct obdo *oa, struct lov_stripe_md **ea,
struct obd_trans_info *oti);
- int (*o_create_async)(struct obd_export *exp, struct obd_info *oinfo,
- struct lov_stripe_md **ea,
- struct obd_trans_info *oti);
int (*o_destroy)(const struct lu_env *env, struct obd_export *exp,
struct obdo *oa, struct lov_stripe_md *ea,
struct obd_trans_info *oti, struct obd_export *md_exp,
int (*o_llog_init)(struct obd_device *obd, struct obd_llog_group *grp,
struct obd_device *disk_obd, int *idx);
int (*o_llog_finish)(struct obd_device *obd, int count);
- int (*o_llog_connect)(struct obd_export *, struct llogd_conn_body *);
-
- /* metadata-only methods */
- int (*o_pin)(struct obd_export *, const struct lu_fid *fid,
- struct obd_capa *, struct obd_client_handle *, int flag);
- int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);
int (*o_import_event)(struct obd_device *, struct obd_import *,
enum obd_import_event);
struct mdt_remote_perm *remote_perm;
struct obd_capa *mds_capa;
struct obd_capa *oss_capa;
- __u64 lm_flags;
};
struct md_open_data {
int (*m_fsync)(struct obd_export *, const struct lu_fid *,
struct obd_capa *, struct ptlrpc_request **);
- int (*m_readpage)(struct obd_export *, struct md_op_data *,
- struct page **, struct ptlrpc_request **);
-
- int (*m_read_entry)(struct obd_export *, struct md_op_data *,
- struct md_callback *cb_op, struct lu_dirent **ld,
- struct page **ppage);
+ int (*m_read_page)(struct obd_export *, struct md_op_data *,
+ struct md_callback *cb_op, __u64 hash_offset,
+ struct page **ppage);
int (*m_unlink)(struct obd_export *, struct md_op_data *,
struct ptlrpc_request **);
int (*m_revalidate_lock)(struct obd_export *, struct lookup_intent *,
struct lu_fid *, __u64 *bits);
+
#define MD_STATS_LAST_OP m_revalidate_lock
int (*m_getstatus)(struct obd_export *, struct lu_fid *,
int (*m_getattr_name)(struct obd_export *, struct md_op_data *,
struct ptlrpc_request **);
- int (*m_is_subdir)(struct obd_export *, const struct lu_fid *,
- const struct lu_fid *,
- struct ptlrpc_request **);
-
int (*m_init_ea_size)(struct obd_export *, int, int, int, int);
int (*m_get_lustre_md)(struct obd_export *, struct ptlrpc_request *,
int (*m_get_remote_perm)(struct obd_export *, const struct lu_fid *,
struct obd_capa *, __u32,
struct ptlrpc_request **);
+
+ int (*m_get_fid_from_lsm)(struct obd_export *,
+ const struct lmv_stripe_md *,
+ const char *name, int namelen,
+ struct lu_fid *fid);
};
struct lsm_operations {
}
}
-/* Requests for obd_extent_calc() */
-#define OBD_CALC_STRIPE_START 1
-#define OBD_CALC_STRIPE_END 2
-
-static inline struct lustre_capa *oinfo_capa(struct obd_info *oinfo)
-{
- return oinfo->oi_capa;
-}
-
static inline struct md_open_data *obd_mod_alloc(void)
{
struct md_open_data *mod;
return obd->u.cli.cl_max_pages_per_rpc << PAGE_CACHE_SHIFT;
}
+/* when RPC size or the max RPCs in flight is increased, the max dirty pages
+ * of the client should be increased accordingly to avoid sending fragmented
+ * RPCs over the network when the client runs out of the maximum dirty space
+ * when so many RPCs are being generated.
+ */
+static inline void client_adjust_max_dirty(struct client_obd *cli)
+{
+ /* initializing */
+ if (cli->cl_dirty_max_pages <= 0)
+ cli->cl_dirty_max_pages = (OSC_MAX_DIRTY_DEFAULT * 1024 * 1024)
+ >> PAGE_CACHE_SHIFT;
+ else {
+ long dirty_max = cli->cl_max_rpcs_in_flight *
+ cli->cl_max_pages_per_rpc;
+
+ if (dirty_max > cli->cl_dirty_max_pages)
+ cli->cl_dirty_max_pages = dirty_max;
+ }
+
+ if (cli->cl_dirty_max_pages > totalram_pages / 8)
+ cli->cl_dirty_max_pages = totalram_pages / 8;
+}
+
#endif /* __OBD_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff