From: yury <yury>
Date: Fri, 23 Jun 2006 10:07:54 +0000 (+0000)
Subject: - added exporting client side meta-seq to userspace via procfs (not used yet);
X-Git-Tag: v1_8_0_110~486^2~1562
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=b6cddd68249a8e3ad44cce0599c7059b6a5817b7;p=fs%2Flustre-release.git

- added exporting client side meta-seq to userspace via procfs (not used yet);
- cleanups and small fixes in FLD.
---

diff --git a/lustre/fid/fid_handler.c b/lustre/fid/fid_handler.c
index 50c428f..f99e712 100644
--- a/lustre/fid/fid_handler.c
+++ b/lustre/fid/fid_handler.c
@@ -408,7 +408,7 @@ seq_server_proc_init(struct lu_server_seq *seq)
         }
 
         rc = lprocfs_add_vars(seq_type_proc_dir,
-                              seq_proc_list, seq);
+                              seq_server_proc_list, seq);
         if (rc) {
                 CERROR("can't init sequence manager "
                        "proc, rc %d\n", rc);
diff --git a/lustre/fid/fid_internal.h b/lustre/fid/fid_internal.h
index e65ab9c..91e85f1 100644
--- a/lustre/fid/fid_internal.h
+++ b/lustre/fid/fid_internal.h
@@ -29,7 +29,8 @@
 #define SEQ_SERVICE_WATCHDOG_TIMEOUT (obd_timeout * 1000)
 
 #ifdef LPROCFS
-extern struct lprocfs_vars seq_proc_list[];
+extern struct lprocfs_vars seq_server_proc_list[];
+extern struct lprocfs_vars seq_client_proc_list[];
 #endif
 
 #endif
diff --git a/lustre/fid/lproc_fid.c b/lustre/fid/lproc_fid.c
index 93f2f2c..871fe04 100644
--- a/lustre/fid/lproc_fid.c
+++ b/lustre/fid/lproc_fid.c
@@ -173,6 +173,49 @@ seq_proc_read_super(char *page, char **start, off_t off,
 }
 
 static int
+seq_proc_write_meta(struct file *file, const char *buffer,
+		    unsigned long count, void *data)
+{
+        struct lu_client_seq *seq = (struct lu_client_seq *)data;
+	int rc;
+	ENTRY;
+
+        LASSERT(seq != NULL);
+
+	down(&seq->seq_sem);
+	rc = seq_proc_write_range(file, buffer, count,
+				  data, &seq->seq_range);
+
+	if (rc == 0) {
+		CDEBUG(D_WARNING, "SEQ-MGR(cli): meta-sequence has changed to "
+		       "["LPU64"-"LPU64"]\n", seq->seq_range.lr_start,
+		       seq->seq_range.lr_end);
+	}
+	
+	up(&seq->seq_sem);
+	
+        RETURN(count);
+}
+
+static int
+seq_proc_read_meta(char *page, char **start, off_t off,
+		   int count, int *eof, void *data)
+{
+        struct lu_client_seq *seq = (struct lu_client_seq *)data;
+	int rc;
+	ENTRY;
+
+        LASSERT(seq != NULL);
+
+	down(&seq->seq_sem);
+	rc = seq_proc_read_range(page, start, off, count, eof,
+				 data, &seq->seq_range);
+	up(&seq->seq_sem);
+	
+	RETURN(rc);
+}
+
+static int
 seq_proc_read_controller(char *page, char **start, off_t off,
 			 int count, int *eof, void *data)
 {
@@ -195,9 +238,13 @@ seq_proc_read_controller(char *page, char **start, off_t off,
 	RETURN(rc);
 }
 
-struct lprocfs_vars seq_proc_list[] = {
+struct lprocfs_vars seq_server_proc_list[] = {
 	{ "space",      seq_proc_read_space, seq_proc_write_space, NULL },
 	{ "super",      seq_proc_read_super, seq_proc_write_super, NULL },
 	{ "controller", seq_proc_read_controller, NULL, NULL },
 	{ NULL }};
+
+struct lprocfs_vars seq_client_proc_list[] = {
+	{ "meta",       seq_proc_read_meta, seq_proc_write_meta, NULL },
+	{ NULL }};
 #endif
diff --git a/lustre/fld/fld_index.c b/lustre/fld/fld_index.c
index aad55e5..7b55422 100644
--- a/lustre/fld/fld_index.c
+++ b/lustre/fld/fld_index.c
@@ -150,8 +150,6 @@ int fld_index_handle_insert(struct lu_server_fld *fld,
         dt->dd_ops->dt_trans_stop(ctx, th);
 
         RETURN(rc);
-        /* XXX: stub until IAM is ready */
-        return 0;
 }
 
 int fld_index_handle_delete(struct lu_server_fld *fld,
@@ -172,8 +170,6 @@ int fld_index_handle_delete(struct lu_server_fld *fld,
         dt->dd_ops->dt_trans_stop(ctx, th);
 
         RETURN(rc);
-        /* XXX: stub until IAM is ready */
-        return 0;
 }
 
 int fld_index_handle_lookup(struct lu_server_fld *fld,
@@ -190,9 +186,6 @@ int fld_index_handle_lookup(struct lu_server_fld *fld,
         if (rc == 0)
                 *mds = be64_to_cpu(*(__u64 *)rec);
         RETURN(rc);
-        /* XXX: stub until IAM is ready */
-        *mds = 0;
-        return 0;
 }
 
 int fld_index_init(struct lu_server_fld *fld,
diff --git a/lustre/fld/fld_request.c b/lustre/fld/fld_request.c
index d96b81d..b477ec5 100644
--- a/lustre/fld/fld_request.c
+++ b/lustre/fld/fld_request.c
@@ -353,8 +353,10 @@ fld_client_create(struct lu_client_fld *fld,
         md_fld.mf_mds = mds;
         
         rc = fld_client_rpc(fld_exp, &md_fld, FLD_CREATE);
+        
 #ifdef __KERNEL__
-        fld_cache_insert(fld_cache, seq, mds);
+        if (rc  == 0)
+                rc = fld_cache_insert(fld_cache, seq, mds);
 #endif
         
         RETURN(rc);
@@ -363,7 +365,7 @@ EXPORT_SYMBOL(fld_client_create);
 
 int
 fld_client_delete(struct lu_client_fld *fld,
-                  __u64 seq, mdsno_t mds)
+                  __u64 seq)
 {
         struct obd_export *fld_exp;
         struct md_fld      md_fld;
@@ -378,7 +380,7 @@ fld_client_delete(struct lu_client_fld *fld,
                 RETURN(-EINVAL);
 
         md_fld.mf_seq = seq;
-        md_fld.mf_mds = mds;
+        md_fld.mf_mds = 0;
 
         rc = fld_client_rpc(fld_exp, &md_fld, FLD_DELETE);
         RETURN(rc);
@@ -433,7 +435,8 @@ fld_client_lookup(struct lu_client_fld *fld,
                 RETURN(rc);
 
 #ifdef __KERNEL__
-        rc = fld_cache_insert(fld_cache, seq, *mds);
+        if (rc == 0)
+                rc = fld_cache_insert(fld_cache, seq, *mds);
 #endif
         
         RETURN(rc);
diff --git a/lustre/include/lustre_fld.h b/lustre/include/lustre_fld.h
index f02dd32..119dfe6 100644
--- a/lustre/include/lustre_fld.h
+++ b/lustre/include/lustre_fld.h
@@ -72,19 +72,19 @@ int fld_client_init(struct lu_client_fld *fld,
 
 void fld_client_fini(struct lu_client_fld *fld);
 
-int fld_client_add_export(struct lu_client_fld *fld,
-                          struct obd_export *exp);
-
-int fld_client_del_export(struct lu_client_fld *fld,
-                          struct obd_export *exp);
+int fld_client_lookup(struct lu_client_fld *fld,
+                      __u64 seq, mdsno_t *mds);
 
 int fld_client_create(struct lu_client_fld *fld,
                       __u64 seq, mdsno_t mds);
 
 int fld_client_delete(struct lu_client_fld *fld,
-                      __u64 seq, mdsno_t mds);
+                      __u64 seq);
 
-int fld_client_lookup(struct lu_client_fld *fld,
-                      __u64 seq, mdsno_t *mds);
+int fld_client_add_export(struct lu_client_fld *fld,
+                          struct obd_export *exp);
+
+int fld_client_del_export(struct lu_client_fld *fld,
+                          struct obd_export *exp);
 
 #endif
diff --git a/lustre/lmv/lmv_fld.c b/lustre/lmv/lmv_fld.c
index aec66ae..5ebc72a 100644
--- a/lustre/lmv/lmv_fld.c
+++ b/lustre/lmv/lmv_fld.c
@@ -59,10 +59,10 @@ int lmv_fld_lookup(struct obd_device *obd, const struct lu_fid *fid)
                        fid_seq(fid), rc);
                 RETURN(rc);
         }
-        CDEBUG(D_WARNING, "LMV: got MDS %u for sequence: "LPU64"\n",
+        CDEBUG(D_WARNING, "LMV: got MDS "LPU64" for sequence: "LPU64"\n",
                mds, fid_seq(fid));
         if (mds >= lmv->desc.ld_tgt_count) {
-                CERROR("Got invalid mdsno: %u (max: %d)\n",
+                CERROR("Got invalid mdsno: "LPU64" (max: %d)\n",
                        mds, lmv->desc.ld_tgt_count);
                 mds = (__u64)-EINVAL;
         }