LU-6179 llite: remove LOCKAHEAD_OLD compatibility

[fs/lustre-release.git] / lustre / include / lustre_export.h

diff --git a/lustre/include/lustre_export.h b/lustre/include/lustre_export.h
index ed511c8..f6e136a 100644 (file)
--- a/lustre/include/lustre_export.h
+++ b/lustre/include/lustre_export.h
@@ -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/
@@ -42,6 +42,9 @@
  * @{
  */
 
+#include <linux/rhashtable.h>
+#include <linux/workqueue.h>
+
 #include <lprocfs_status.h>
 #include <uapi/linux/lustre/lustre_idl.h>
 #include <lustre_dlm.h>
@@ -99,6 +102,13 @@ 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 +129,10 @@ 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;
 };
 
@@ -182,12 +189,11 @@ struct obd_export {
         * what export they are talking to.
         */
        struct portals_handle   exp_handle;
-       atomic_t                exp_refcount;
        /**
         * Set of counters below is to track where export references are
         * kept. The exp_rpc_count is used for reconnect handling also,
         * the cb_count and locks_count are for debug purposes only for now.
-        * The sum of them should be less than exp_refcount by 3
+        * The sum of them should be less than exp_handle.href by 3
         */
        atomic_t                exp_rpc_count; /* RPC references */
        atomic_t                exp_cb_count; /* Commit callback references */
@@ -202,9 +208,11 @@ 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*/
+       struct rhash_head       exp_uuid_hash;  /** uuid-export hash */
        struct hlist_node       exp_nid_hash;   /** nid-export hash */
        struct hlist_node       exp_gen_hash;   /** last_rcvd clt gen hash */
         /**
@@ -269,7 +277,9 @@ struct obd_export {
                                exp_need_mne_swab:1,
                                /* The export already got final replay ping
                                 * request. */
-                               exp_replay_done:1;
+                               exp_replay_done:1,
+                               /* local client with recovery disabled */
+                               exp_no_recovery:1;
        /* also protected by exp_lock */
        enum lustre_sec_part    exp_sp_peer;
        struct sptlrpc_flavor   exp_flvr;               /* current */
@@ -299,7 +309,8 @@ struct obd_export {
        /** highest XID received by export client that has no
         * unreceived lower-numbered XID
         */
-       __u64                     exp_last_xid;
+       __u64                   exp_last_xid;
+       long                    *exp_used_slots;
 };
 
 #define exp_target_data u.eu_target_data
@@ -324,7 +335,9 @@ static inline __u64 *exp_connect_flags2_ptr(struct obd_export *exp)
 
 static inline __u64 exp_connect_flags2(struct obd_export *exp)
 {
-       return *exp_connect_flags2_ptr(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)
@@ -429,24 +442,50 @@ 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)
+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_flags(exp) & OBD_CONNECT_LOCKAHEAD_OLD);
+       return !!(exp_connect_flags2(exp) & OBD_CONNECT2_OVERSTRIPING);
 }
 
-static inline int exp_connect_lockahead(struct obd_export *exp)
+static inline int exp_connect_flr(struct obd_export *exp)
 {
-       return !!(exp_connect_flags2(exp) & OBD_CONNECT2_LOCKAHEAD);
+       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 */