staging/lustre/fld: prepare FLD module for client server split

[firefly-linux-kernel-4.4.55.git] / drivers / staging / lustre / lustre / fld / lproc_fld.c

diff --git a/drivers/staging/lustre/lustre/fld/lproc_fld.c b/drivers/staging/lustre/lustre/fld/lproc_fld.c
index c1bd80339e6744d12bdd4c9ddfc42599357089a5..77322ba5bf312fa9c56bd1d4a910ed4289a10bed 100644 (file)
--- a/drivers/staging/lustre/lustre/fld/lproc_fld.c
+++ b/drivers/staging/lustre/lustre/fld/lproc_fld.c
@@ -158,202 +158,6 @@ struct file_operations fld_proc_cache_flush_fops = {
        .release        = fld_proc_cache_flush_release,
 };
 
-struct fld_seq_param {
-       struct lu_env           fsp_env;
-       struct dt_it            *fsp_it;
-       struct lu_server_fld    *fsp_fld;
-       unsigned int            fsp_stop:1;
-};
-
-static void *fldb_seq_start(struct seq_file *p, loff_t *pos)
-{
-       struct fld_seq_param    *param = p->private;
-       struct lu_server_fld    *fld;
-       struct dt_object        *obj;
-       const struct dt_it_ops  *iops;
-
-       if (param == NULL || param->fsp_stop)
-               return NULL;
-
-       fld = param->fsp_fld;
-       obj = fld->lsf_obj;
-       LASSERT(obj != NULL);
-       iops = &obj->do_index_ops->dio_it;
-
-       iops->load(&param->fsp_env, param->fsp_it, *pos);
-
-       *pos = be64_to_cpu(*(__u64 *)iops->key(&param->fsp_env, param->fsp_it));
-       return param;
-}
-
-static void fldb_seq_stop(struct seq_file *p, void *v)
-{
-       struct fld_seq_param    *param = p->private;
-       const struct dt_it_ops  *iops;
-       struct lu_server_fld    *fld;
-       struct dt_object        *obj;
-
-       if (param == NULL)
-               return;
-
-       fld = param->fsp_fld;
-       obj = fld->lsf_obj;
-       LASSERT(obj != NULL);
-       iops = &obj->do_index_ops->dio_it;
-
-       iops->put(&param->fsp_env, param->fsp_it);
-}
-
-static void *fldb_seq_next(struct seq_file *p, void *v, loff_t *pos)
-{
-       struct fld_seq_param    *param = p->private;
-       struct lu_server_fld    *fld;
-       struct dt_object        *obj;
-       const struct dt_it_ops  *iops;
-       int                     rc;
-
-       if (param == NULL || param->fsp_stop)
-               return NULL;
-
-       fld = param->fsp_fld;
-       obj = fld->lsf_obj;
-       LASSERT(obj != NULL);
-       iops = &obj->do_index_ops->dio_it;
-
-       rc = iops->next(&param->fsp_env, param->fsp_it);
-       if (rc > 0) {
-               param->fsp_stop = 1;
-               return NULL;
-       }
-
-       *pos = be64_to_cpu(*(__u64 *)iops->key(&param->fsp_env, param->fsp_it));
-       return param;
-}
-
-static int fldb_seq_show(struct seq_file *p, void *v)
-{
-       struct fld_seq_param    *param = p->private;
-       struct lu_server_fld    *fld;
-       struct dt_object        *obj;
-       const struct dt_it_ops  *iops;
-       struct fld_thread_info  *info;
-       struct lu_seq_range     *fld_rec;
-       int                     rc;
-
-       if (param == NULL || param->fsp_stop)
-               return 0;
-
-       fld = param->fsp_fld;
-       obj = fld->lsf_obj;
-       LASSERT(obj != NULL);
-       iops = &obj->do_index_ops->dio_it;
-
-       info = lu_context_key_get(&param->fsp_env.le_ctx,
-                                 &fld_thread_key);
-       fld_rec = &info->fti_rec;
-       rc = iops->rec(&param->fsp_env, param->fsp_it,
-                      (struct dt_rec *)fld_rec, 0);
-       if (rc != 0) {
-               CERROR("%s:read record error: rc %d\n",
-                      fld->lsf_name, rc);
-       } else if (fld_rec->lsr_start != 0) {
-               range_be_to_cpu(fld_rec, fld_rec);
-               rc = seq_printf(p, DRANGE"\n", PRANGE(fld_rec));
-       }
-
-       return rc;
-}
-
-struct seq_operations fldb_sops = {
-       .start = fldb_seq_start,
-       .stop = fldb_seq_stop,
-       .next = fldb_seq_next,
-       .show = fldb_seq_show,
-};
-
-static int fldb_seq_open(struct inode *inode, struct file *file)
-{
-       struct seq_file         *seq;
-       struct lu_server_fld    *fld = (struct lu_server_fld *)PDE_DATA(inode);
-       struct dt_object        *obj;
-       const struct dt_it_ops  *iops;
-       struct fld_seq_param    *param = NULL;
-       int                     env_init = 0;
-       int                     rc;
-
-       rc = seq_open(file, &fldb_sops);
-       if (rc)
-               GOTO(out, rc);
-
-       obj = fld->lsf_obj;
-       if (obj == NULL) {
-               seq = file->private_data;
-               seq->private = NULL;
-               return 0;
-       }
-
-       OBD_ALLOC_PTR(param);
-       if (param == NULL)
-               GOTO(out, rc = -ENOMEM);
-
-       rc = lu_env_init(&param->fsp_env, LCT_MD_THREAD);
-       if (rc != 0)
-               GOTO(out, rc);
-
-       env_init = 1;
-       iops = &obj->do_index_ops->dio_it;
-       param->fsp_it = iops->init(&param->fsp_env, obj, 0, NULL);
-       if (IS_ERR(param->fsp_it))
-               GOTO(out, rc = PTR_ERR(param->fsp_it));
-
-       param->fsp_fld = fld;
-       param->fsp_stop = 0;
-
-       seq = file->private_data;
-       seq->private = param;
-out:
-       if (rc != 0) {
-               if (env_init == 1)
-                       lu_env_fini(&param->fsp_env);
-               if (param != NULL)
-                       OBD_FREE_PTR(param);
-       }
-       return rc;
-}
-
-static int fldb_seq_release(struct inode *inode, struct file *file)
-{
-       struct seq_file         *seq = file->private_data;
-       struct fld_seq_param    *param;
-       struct lu_server_fld    *fld;
-       struct dt_object        *obj;
-       const struct dt_it_ops  *iops;
-
-       param = seq->private;
-       if (param == NULL) {
-               lprocfs_seq_release(inode, file);
-               return 0;
-       }
-
-       fld = param->fsp_fld;
-       obj = fld->lsf_obj;
-       LASSERT(obj != NULL);
-       iops = &obj->do_index_ops->dio_it;
-
-       LASSERT(iops != NULL);
-       LASSERT(obj != NULL);
-       LASSERT(param->fsp_it != NULL);
-       iops->fini(&param->fsp_env, param->fsp_it);
-       lu_env_fini(&param->fsp_env);
-       OBD_FREE_PTR(param);
-       lprocfs_seq_release(inode, file);
-
-       return 0;
-}
-
-struct lprocfs_vars fld_server_proc_list[] = {
-       { NULL }};
-
 LPROC_SEQ_FOPS_RO(fld_proc_targets);
 LPROC_SEQ_FOPS(fld_proc_hash);
 
@@ -363,11 +167,4 @@ struct lprocfs_vars fld_client_proc_list[] = {
        { "cache_flush", &fld_proc_cache_flush_fops },
        { NULL }};
 
-struct file_operations fld_proc_seq_fops = {
-       .owner   = THIS_MODULE,
-       .open    = fldb_seq_open,
-       .read    = seq_read,
-       .release = fldb_seq_release,
-};
-
-#endif
+#endif /* LPROCFS */