LU-169 lov: add lsm refcounting

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

diff --git a/lustre/include/lclient.h b/lustre/include/lclient.h
index 1f5d908..c79ddfc 100644 (file)
--- a/lustre/include/lclient.h
+++ b/lustre/include/lclient.h
@@ -1,6 +1,4 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
  * GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -28,6 +26,8 @@
 /*
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -43,9 +43,21 @@
 #ifndef LCLIENT_H
 #define LCLIENT_H
 
-int cl_glimpse_size(struct inode *inode);
+blkcnt_t dirty_cnt(struct inode *inode);
+
+int cl_glimpse_size0(struct inode *inode, int agl);
 int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io,
-                    struct inode *inode, struct cl_object *clob);
+                    struct inode *inode, struct cl_object *clob, int agl);
+
+static inline int cl_glimpse_size(struct inode *inode)
+{
+        return cl_glimpse_size0(inode, 0);
+}
+
+static inline int cl_agl(struct inode *inode)
+{
+        return cl_glimpse_size0(inode, 1);
+}
 
 /**
  * Locking policy for setattr.
@@ -329,8 +341,7 @@ void ccc_io_advance(const struct lu_env *env, const struct cl_io_slice *ios,
 void ccc_io_update_iov(const struct lu_env *env, struct ccc_io *cio,
                        struct cl_io *io);
 int ccc_prep_size(const struct lu_env *env, struct cl_object *obj,
-                  struct cl_io *io, loff_t start, size_t count, int vfslock,
-                  int *exceed);
+                  struct cl_io *io, loff_t start, size_t count, int *exceed);
 void ccc_req_completion(const struct lu_env *env,
                         const struct cl_req_slice *slice, int ioret);
 void ccc_req_attr_set(const struct lu_env *env,const struct cl_req_slice *slice,
@@ -356,13 +367,12 @@ int cl_setattr_ost(struct inode *inode, const struct iattr *attr,
 
 struct cl_page *ccc_vmpage_page_transient(cfs_page_t *vmpage);
 int ccc_object_invariant(const struct cl_object *obj);
-int cl_inode_init(struct inode *inode, struct lustre_md *md);
+int cl_file_inode_init(struct inode *inode, struct lustre_md *md);
 void cl_inode_fini(struct inode *inode);
 int cl_local_size(struct inode *inode);
 
 __u16 ll_dirent_type_get(struct lu_dirent *ent);
-__u64 cl_fid_build_ino(const struct lu_fid *fid);
-__u32 cl_fid_build_ino32(const struct lu_fid *fid);
+__u64 cl_fid_build_ino(const struct lu_fid *fid, int api32);
 __u32 cl_fid_build_gen(const struct lu_fid *fid);
 
 #ifdef INVARIANT_CHECK
@@ -394,4 +404,18 @@ int  cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock,
                       struct ccc_grouplock *cg);
 void cl_put_grouplock(struct ccc_grouplock *cg);
 
+/**
+ * New interfaces to get and put lov_stripe_md from lov layer. This violates
+ * layering because lov_stripe_md is supposed to be a private data in lov.
+ *
+ * NB: If you find you have to use these interfaces for your new code, please
+ * think about it again. These interfaces may be removed in the future for
+ * better layering. */
+struct lov_stripe_md *lov_lsm_get(struct cl_object *clobj);
+void lov_lsm_put(struct cl_object *clobj, struct lov_stripe_md *lsm);
+int lov_read_and_clear_async_rc(struct cl_object *clob);
+
+struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode);
+void ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm);
+
 #endif /*LCLIENT_H */