LU-8066 obd_type: discard obd_types linked list.

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

diff --git a/lustre/include/obd.h b/lustre/include/obd.h
index 233f4f0..c43cafb 100644 (file)
--- a/lustre/include/obd.h
+++ b/lustre/include/obd.h
@@ -99,7 +99,6 @@ struct obd_info {
 };
 
 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;
@@ -107,12 +106,12 @@ struct obd_type {
 #ifdef HAVE_SERVER_SUPPORT
        bool                     typ_sym_filter;
 #endif
-       char                    *typ_name;
        int                      typ_refcnt;
        struct lu_device_type   *typ_lu;
        spinlock_t               obd_type_lock;
        struct kobject           typ_kobj;
 };
+#define typ_name typ_kobj.name
 
 struct brw_page {
        u64              off;
@@ -342,6 +341,8 @@ struct client_obd {
         __u32                    cl_supp_cksum_types;
         /* checksum algorithm to be used */
        enum cksum_types         cl_cksum_type;
+       /* preferred checksum algorithm to be used */
+       enum cksum_types         cl_preferred_cksum_type;
 
         /* also protected by the poorly named _loi_list_lock lock above */
         struct osc_async_rc      cl_ar;
@@ -380,6 +381,8 @@ struct echo_client_obd {
 
 /* allow statfs data caching for 1 second */
 #define OBD_STATFS_CACHE_SECONDS 1
+/* arbitrary maximum. larger would be useless, allows catching bogus input */
+#define OBD_STATFS_CACHE_MAX_AGE 3600 /* seconds */
 
 #define lov_tgt_desc lu_tgt_desc
 
@@ -423,14 +426,12 @@ struct lmv_obd {
        spinlock_t              lmv_lock;
        struct lmv_desc         desc;
 
-       struct mutex            lmv_init_mutex;
        int                     connected;
        int                     max_easize;
        int                     max_def_easize;
        u32                     lmv_statfs_start;
 
-       u32                     tgts_size; /* size of tgts array */
-       struct lmv_tgt_desc     **tgts;
+       struct lu_tgt_descs     lmv_mdt_descs;
 
        struct obd_connect_data conn_data;
        struct kobject          *lmv_tgts_kobj;
@@ -454,6 +455,8 @@ struct niobuf_local {
        __u16           lnb_guards[MAX_GUARD_NUMBER];
        __u16           lnb_guard_rpc:1;
        __u16           lnb_guard_disk:1;
+       /* separate unlock for read path to allow shared access */
+       __u16           lnb_locked:1;
 };
 
 struct tgt_thread_big_cache {
@@ -586,7 +589,6 @@ struct obd_llog_group {
        struct llog_ctxt   *olg_ctxts[LLOG_MAX_CTXTS];
        wait_queue_head_t  olg_waitq;
        spinlock_t         olg_lock;
-       struct mutex       olg_cat_processing;
 };
 
 /* corresponds to one of the obd's */
@@ -678,8 +680,11 @@ struct obd_device {
        time64_t                obd_recovery_start;
        /* seconds, for lprocfs_status */
        time64_t                obd_recovery_end;
-       time64_t                obd_recovery_time_hard;
-       time64_t                obd_recovery_timeout;
+       /* To tell timeouts from time stamps Lustre uses time_t
+        * instead of time64_t.
+        */
+       time_t                  obd_recovery_time_hard;
+       time_t                  obd_recovery_timeout;
        int                     obd_recovery_ir_factor;
 
        /* new recovery stuff from CMD2 */
@@ -1029,7 +1034,7 @@ struct lustre_md {
                struct lmv_foreign_md   *lfm;
        };
        struct lmv_stripe_md    *default_lmv;
-#ifdef CONFIG_FS_POSIX_ACL
+#ifdef CONFIG_LUSTRE_FS_POSIX_ACL
        struct posix_acl        *posix_acl;
 #endif
 };
@@ -1154,6 +1159,8 @@ struct md_ops {
                                  struct lu_fid *fid);
        int (*m_unpackmd)(struct obd_export *exp, struct lmv_stripe_md **plsm,
                          const union lmv_mds_md *lmv, size_t lmv_size);
+       int (*m_rmfid)(struct obd_export *exp, struct fid_array *fa, int *rcs,
+                      struct ptlrpc_request_set *set);
 };
 
 static inline struct md_open_data *obd_mod_alloc(void)
@@ -1268,8 +1275,8 @@ static inline void client_adjust_max_dirty(struct client_obd *cli)
                        cli->cl_dirty_max_pages = dirty_max;
        }
 
-       if (cli->cl_dirty_max_pages > totalram_pages / 8)
-               cli->cl_dirty_max_pages = totalram_pages / 8;
+       if (cli->cl_dirty_max_pages > cfs_totalram_pages() / 8)
+               cli->cl_dirty_max_pages = cfs_totalram_pages() / 8;
 
        /* This value is exported to userspace through the max_dirty_mb
         * parameter.  So we round up the number of pages to make it a round