X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;ds=sidebyside;f=lustre%2Fcmm%2Fmdc_internal.h;h=820bd418e8e781f088797723f482a86c4c810bac;hb=30d23e8d36d8b0b4d2571e7801e3643b0e7ab22e;hp=774912bd4449083c514bd47d753049d38098ff6e;hpb=6869932b552ac705f411de3362f01bd50c1f6f7d;p=fs%2Flustre-release.git

diff --git a/lustre/cmm/mdc_internal.h b/lustre/cmm/mdc_internal.h
index 774912b..820bd41 100644
--- a/lustre/cmm/mdc_internal.h
+++ b/lustre/cmm/mdc_internal.h
@@ -26,7 +26,7 @@
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  */
 /*
@@ -48,63 +48,94 @@
 #include <lustre_net.h>
 #include <obd.h>
 #include <md_object.h>
-
+/**
+ * \addtogroup cmm
+ * @{
+ */
+/**
+ * \defgroup cmm_mdc cmm_mdc
+ *
+ * This is mdc wrapper device to work with old MDC obd-based devices.
+ * @{
+ */
+/**
+ * MDC client description.
+ */
 struct mdc_cli_desc {
-        struct lustre_handle     cl_conn;
-        /* uuid of remote MDT to connect */
+        /** uuid of remote MDT to connect */
         struct obd_uuid          cl_srv_uuid;
-        /* mdc uuid */
+        /** mdc uuid */
         struct obd_uuid          cl_cli_uuid;
-        /* export of mdc obd */
+        /** export of mdc obd */
         struct obd_export        *cl_exp;
 };
 
+/**
+ * MDC device.
+ */
 struct mdc_device {
+        /** md_device instance for MDC */
         struct md_device        mc_md_dev;
-        /* other MD servers in cluster */
-        struct list_head        mc_linkage;
+        /** other MD servers in cluster */
+        cfs_list_t              mc_linkage;
+        /** number of current device */
         mdsno_t                 mc_num;
+        /** mdc client description */
         struct mdc_cli_desc     mc_desc;
-        struct semaphore        mc_fid_sem;
+        /** Protects ??*/
+        cfs_semaphore_t         mc_fid_sem;
 };
 
+/**
+ * mdc thread info. Local storage for varios data.
+ */
 struct mdc_thread_info {
+        /** Storage for md_op_data */
         struct md_op_data       mci_opdata;
+        /** Storage for ptlrpc request */
         struct ptlrpc_request  *mci_req;
 };
 
+/** mdc object. */
 struct mdc_object {
-	struct md_object        mco_obj;
+        /** md_object instance for mdc_object */
+        struct md_object        mco_obj;
 };
 
+/** Get lu_device from mdc_device. */
 static inline struct lu_device *mdc2lu_dev(struct mdc_device *mc)
 {
-	return (&mc->mc_md_dev.md_lu_dev);
+        return (&mc->mc_md_dev.md_lu_dev);
 }
 
+/** Get mdc_device from md_device. */
 static inline struct mdc_device *md2mdc_dev(struct md_device *md)
 {
         return container_of0(md, struct mdc_device, mc_md_dev);
 }
 
+/** Get mdc_device from mdc_object. */
 static inline struct mdc_device *mdc_obj2dev(struct mdc_object *mco)
 {
-	return (md2mdc_dev(md_obj2dev(&mco->mco_obj)));
+        return (md2mdc_dev(md_obj2dev(&mco->mco_obj)));
 }
 
+/** Get mdc_object from lu_object. */
 static inline struct mdc_object *lu2mdc_obj(struct lu_object *lo)
 {
-	return container_of0(lo, struct mdc_object, mco_obj.mo_lu);
+        return container_of0(lo, struct mdc_object, mco_obj.mo_lu);
 }
 
+/** Get mdc_object from md_object. */
 static inline struct mdc_object *md2mdc_obj(struct md_object *mo)
 {
-	return container_of0(mo, struct mdc_object, mco_obj);
+        return container_of0(mo, struct mdc_object, mco_obj);
 }
 
+/** Get mdc_device from lu_device. */
 static inline struct mdc_device *lu2mdc_dev(struct lu_device *ld)
 {
-	return container_of0(ld, struct mdc_device, mc_md_dev.md_lu_dev);
+        return container_of0(ld, struct mdc_device, mc_md_dev.md_lu_dev);
 }
 
 struct lu_object *mdc_object_alloc(const struct lu_env *,
@@ -117,6 +148,7 @@ void cmm_mdc_init_ea_size(const struct lu_env *env, struct mdc_device *mc,
 int mdc_send_page(struct cmm_device *cmm, const struct lu_env *env,
                   struct md_object *mo, struct page *page, __u32 end);
 #endif
-
+/** @} */
+/** @} */
 #endif /* __KERNEL__ */
 #endif /* _CMM_MDC_INTERNAL_H */