Whamcloud - gitweb
LU-9846 obd: Add overstriping CONNECT flag
[fs/lustre-release.git] / lustre / include / lustre_export.h
index 7aa1dff..83e3bbe 100644 (file)
@@ -23,7 +23,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2016, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
  * @{
  */
 
+#include <linux/workqueue.h>
+
 #include <lprocfs_status.h>
-#include <lustre/lustre_idl.h>
+#include <uapi/linux/lustre/lustre_idl.h>
 #include <lustre_dlm.h>
 
 struct mds_client_data;
@@ -99,6 +101,13 @@ struct tg_export_data {
        long                    ted_grant;    /* in bytes */
        long                    ted_pending;  /* bytes just being written */
        __u8                    ted_pagebits; /* log2 of client page size */
+
+       /**
+        * File Modification Data (FMD) tracking
+        */
+       spinlock_t              ted_fmd_lock; /* protects ted_fmd_list */
+       struct list_head        ted_fmd_list; /* FIDs being modified */
+       int                     ted_fmd_count;/* items in ted_fmd_list */
 };
 
 /**
@@ -119,13 +128,10 @@ struct ec_export_data { /* echo client */
 /** Filter (oss-side) specific import data */
 struct filter_export_data {
        struct tg_export_data   fed_ted;
-       spinlock_t              fed_lock;       /**< protects fed_mod_list */
        __u64                   fed_lastid_gen;
-       struct list_head        fed_mod_list; /* files being modified */
        /* count of SOFT_SYNC RPCs, which will be reset after
         * ofd_soft_sync_limit number of RPCs, and trigger a sync. */
        atomic_t                fed_soft_sync_count;
-       int                     fed_mod_count;/* items in fed_writing list */
        __u32                   fed_group;
 };
 
@@ -164,6 +170,7 @@ do {                                                                           \
 
 enum obd_option {
         OBD_OPT_FORCE =         0x0001,
+        OBD_OPT_FAILOVER =      0x0002,
         OBD_OPT_ABORT_RECOV =   0x0004,
 };
 
@@ -201,6 +208,8 @@ struct obd_export {
        struct obd_uuid         exp_client_uuid;
         /** To link all exports on an obd device */
        struct list_head        exp_obd_chain;
+       /** work_struct for destruction of export */
+       struct work_struct      exp_zombie_work;
        /* Unlinked export list */
        struct list_head        exp_stale_list;
        struct hlist_node       exp_uuid_hash;  /** uuid-export hash*/
@@ -238,45 +247,44 @@ struct obd_export {
        /** Last committed transno for this export */
        __u64                   exp_last_committed;
        /** When was last request received */
-       cfs_time_t              exp_last_request_time;
+       time64_t                exp_last_request_time;
        /** On replay all requests waiting for replay are linked here */
        struct list_head        exp_req_replay_queue;
        /**
         * protects exp_flags, exp_outstanding_replies and the change
         * of exp_imp_reverse
         */
-       spinlock_t                exp_lock;
+       spinlock_t              exp_lock;
        /** Compatibility flags for this export are embedded into
         *  exp_connect_data */
-       struct obd_connect_data   exp_connect_data;
-        enum obd_option           exp_flags;
-        unsigned long             exp_failed:1,
-                                  exp_in_recovery:1,
-                                  exp_disconnected:1,
-                                  exp_connecting:1,
-                                  /** VBR: export missed recovery */
-                                  exp_delayed:1,
-                                  /** VBR: failed version checking */
-                                  exp_vbr_failed:1,
-                                  exp_req_replay_needed:1,
-                                  exp_lock_replay_needed:1,
-                                  exp_need_sync:1,
-                                  exp_flvr_changed:1,
-                                  exp_flvr_adapt:1,
-                                  exp_libclient:1, /* liblustre client? */
-                                 /* if to swap nidtbl entries for 2.2 clients.
-                                  * Only used by the MGS to fix LU-1644. */
-                                 exp_need_mne_swab:1,
-                                 /* The export already got final replay ping
-                                  * request. */
-                                 exp_replay_done:1;
-        /* also protected by exp_lock */
-        enum lustre_sec_part      exp_sp_peer;
-        struct sptlrpc_flavor     exp_flvr;             /* current */
-        struct sptlrpc_flavor     exp_flvr_old[2];      /* about-to-expire */
-       time64_t                  exp_flvr_expire[2];   /* seconds */
-
-        /** protects exp_hp_rpcs */
+       struct obd_connect_data exp_connect_data;
+       enum obd_option         exp_flags;
+       unsigned long           exp_failed:1,
+                               exp_in_recovery:1,
+                               exp_disconnected:1,
+                               exp_connecting:1,
+                               /** VBR: export missed recovery */
+                               exp_delayed:1,
+                               /** VBR: failed version checking */
+                               exp_vbr_failed:1,
+                               exp_req_replay_needed:1,
+                               exp_lock_replay_needed:1,
+                               exp_need_sync:1,
+                               exp_flvr_changed:1,
+                               exp_flvr_adapt:1,
+                               /* if to swap nidtbl entries for 2.2 clients.
+                                * Only used by the MGS to fix LU-1644. */
+                               exp_need_mne_swab:1,
+                               /* The export already got final replay ping
+                                * request. */
+                               exp_replay_done:1;
+       /* also protected by exp_lock */
+       enum lustre_sec_part    exp_sp_peer;
+       struct sptlrpc_flavor   exp_flvr;               /* current */
+       struct sptlrpc_flavor   exp_flvr_old[2];        /* about-to-expire */
+       time64_t                exp_flvr_expire[2];     /* seconds */
+
+       /** protects exp_hp_rpcs */
        spinlock_t              exp_rpc_lock;
        struct list_head        exp_hp_rpcs;    /* (potential) HP RPCs */
        struct list_head        exp_reg_rpcs;  /* RPC being handled */
@@ -317,6 +325,18 @@ static inline __u64 exp_connect_flags(struct obd_export *exp)
        return *exp_connect_flags_ptr(exp);
 }
 
+static inline __u64 *exp_connect_flags2_ptr(struct obd_export *exp)
+{
+       return &exp->exp_connect_data.ocd_connect_flags2;
+}
+
+static inline __u64 exp_connect_flags2(struct obd_export *exp)
+{
+       if (exp_connect_flags(exp) & OBD_CONNECT_FLAGS2)
+               return *exp_connect_flags2_ptr(exp);
+       return 0;
+}
+
 static inline int exp_max_brw_size(struct obd_export *exp)
 {
        LASSERT(exp != NULL);
@@ -331,13 +351,6 @@ static inline int exp_connect_multibulk(struct obd_export *exp)
        return exp_max_brw_size(exp) > ONE_MB_BRW_SIZE;
 }
 
-static inline int exp_expired(struct obd_export *exp, cfs_duration_t age)
-{
-        LASSERT(exp->exp_delayed);
-        return cfs_time_before(cfs_time_add(exp->exp_last_request_time, age),
-                               cfs_time_current_sec());
-}
-
 static inline int exp_connect_cancelset(struct obd_export *exp)
 {
        LASSERT(exp != NULL);
@@ -406,6 +419,13 @@ static inline bool imp_connect_disp_stripe(struct obd_import *imp)
        return ocd->ocd_connect_flags & OBD_CONNECT_DISP_STRIPE;
 }
 
+static inline bool imp_connect_shortio(struct obd_import *imp)
+{
+       struct obd_connect_data *ocd = &imp->imp_connect_data;
+
+       return ocd->ocd_connect_flags & OBD_CONNECT_SHORTIO;
+}
+
 static inline __u64 exp_connect_ibits(struct obd_export *exp)
 {
        struct obd_connect_data *ocd;
@@ -419,14 +439,55 @@ static inline int exp_connect_large_acl(struct obd_export *exp)
        return !!(exp_connect_flags(exp) & OBD_CONNECT_LARGE_ACL);
 }
 
+static inline int exp_connect_lockahead_old(struct obd_export *exp)
+{
+       return !!(exp_connect_flags(exp) & OBD_CONNECT_LOCKAHEAD_OLD);
+}
+
+static inline int exp_connect_lockahead(struct obd_export *exp)
+{
+       return !!(exp_connect_flags2(exp) & OBD_CONNECT2_LOCKAHEAD);
+}
+
+static inline int exp_connect_overstriping(struct obd_export *exp)
+{
+       return !!(exp_connect_flags2(exp) & OBD_CONNECT2_OVERSTRIPING);
+}
+
+static inline int exp_connect_flr(struct obd_export *exp)
+{
+       return !!(exp_connect_flags2(exp) & OBD_CONNECT2_FLR);
+}
+
+static inline int exp_connect_lock_convert(struct obd_export *exp)
+{
+       return !!(exp_connect_flags2(exp) & OBD_CONNECT2_LOCK_CONVERT);
+}
+
 extern struct obd_export *class_conn2export(struct lustre_handle *conn);
-extern struct obd_device *class_conn2obd(struct lustre_handle *conn);
 
-#define KKUC_CT_DATA_MAGIC     0x092013cea
+static inline int exp_connect_archive_id_array(struct obd_export *exp)
+{
+       return !!(exp_connect_flags2(exp) & OBD_CONNECT2_ARCHIVE_ID_ARRAY);
+}
+
+static inline int exp_connect_sepol(struct obd_export *exp)
+{
+       return !!(exp_connect_flags2(exp) & OBD_CONNECT2_SELINUX_POLICY);
+}
+
+enum {
+       /* archive_ids in array format */
+       KKUC_CT_DATA_ARRAY_MAGIC        = 0x092013cea,
+       /* archive_ids in bitmap format */
+       KKUC_CT_DATA_BITMAP_MAGIC       = 0x082018cea,
+};
+
+
 struct kkuc_ct_data {
        __u32           kcd_magic;
-       struct obd_uuid kcd_uuid;
-       __u32           kcd_archive;
+       __u32           kcd_nr_archives;
+       __u32           kcd_archives[0];
 };
 
 /** @} export */