X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Ffid%2Ffid_lib.c;h=5db738c7a8519b8b7658eeb53a1d5456ccf8e129;hb=e655d8abdcecc60c80ff43ac291943d4da1488b5;hp=f4720119ed4763b4efe9dcce4c38200d8d67ffa8;hpb=6869932b552ac705f411de3362f01bd50c1f6f7d;p=fs%2Flustre-release.git

diff --git a/lustre/fid/fid_lib.c b/lustre/fid/fid_lib.c
index f472011..5db738c 100644
--- a/lustre/fid/fid_lib.c
+++ b/lustre/fid/fid_lib.c
@@ -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.
@@ -26,8 +24,10 @@
  * 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.
+ *
+ * Copyright (c) 2012, 2014, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -41,20 +41,11 @@
  * Author: Yury Umanets <umka@clusterfs.com>
  */
 
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
 #define DEBUG_SUBSYSTEM S_FID
 
-#ifdef __KERNEL__
-# include <libcfs/libcfs.h>
-# include <linux/module.h>
-#else /* __KERNEL__ */
-# include <liblustre.h>
-#endif
-
-#include <obd.h>
-#include <lu_object.h>
+#include <libcfs/libcfs.h>
+#include <linux/module.h>
+#include <lustre/lustre_idl.h>
 #include <lustre_fid.h>
 
 /**
@@ -69,69 +60,46 @@
  * </pre>
  *
  * The first 0x400 sequences of normal FID are reserved for special purpose.
+ * FID_SEQ_START + 1 is for local file id generation.
+ * FID_SEQ_START + 2 is for .lustre directory and its objects
  */
-const struct lu_range LUSTRE_SEQ_SPACE_RANGE = {
-        FID_SEQ_START + 0x400ULL,
+const struct lu_seq_range LUSTRE_SEQ_SPACE_RANGE = {
+        FID_SEQ_NORMAL,
         (__u64)~0ULL
 };
-EXPORT_SYMBOL(LUSTRE_SEQ_SPACE_RANGE);
 
 /* Zero range, used for init and other purposes. */
-const struct lu_range LUSTRE_SEQ_ZERO_RANGE = {
+const struct lu_seq_range LUSTRE_SEQ_ZERO_RANGE = {
         0,
         0
 };
-EXPORT_SYMBOL(LUSTRE_SEQ_ZERO_RANGE);
 
 /* Lustre Big Fs Lock fid. */
-const struct lu_fid LUSTRE_BFL_FID = { .f_seq = 0x0000000000000003,
-                                       .f_oid = 0x0000000000000001,
+const struct lu_fid LUSTRE_BFL_FID = { .f_seq = FID_SEQ_SPECIAL,
+                                       .f_oid = FID_OID_SPECIAL_BFL,
                                        .f_ver = 0x0000000000000000 };
 EXPORT_SYMBOL(LUSTRE_BFL_FID);
 
-void range_cpu_to_le(struct lu_range *dst, const struct lu_range *src)
-{
-        /* check that all fields are converted */
-        CLASSERT(sizeof *src ==
-                 sizeof src->lr_start +
-                 sizeof src->lr_end);
-        dst->lr_start = cpu_to_le64(src->lr_start);
-        dst->lr_end = cpu_to_le64(src->lr_end);
-}
-EXPORT_SYMBOL(range_cpu_to_le);
-
-void range_le_to_cpu(struct lu_range *dst, const struct lu_range *src)
-{
-        /* check that all fields are converted */
-        CLASSERT(sizeof *src ==
-                 sizeof src->lr_start +
-                 sizeof src->lr_end);
-        dst->lr_start = le64_to_cpu(src->lr_start);
-        dst->lr_end = le64_to_cpu(src->lr_end);
-}
-EXPORT_SYMBOL(range_le_to_cpu);
+/** Special fid for ".lustre" directory */
+const struct lu_fid LU_DOT_LUSTRE_FID = { .f_seq = FID_SEQ_DOT_LUSTRE,
+                                          .f_oid = FID_OID_DOT_LUSTRE,
+                                          .f_ver = 0x0000000000000000 };
+EXPORT_SYMBOL(LU_DOT_LUSTRE_FID);
 
-#ifdef __KERNEL__
-void range_cpu_to_be(struct lu_range *dst, const struct lu_range *src)
-{
-        /* check that all fields are converted */
-        CLASSERT(sizeof *src ==
-                 sizeof src->lr_start +
-                 sizeof src->lr_end);
-        dst->lr_start = cpu_to_be64(src->lr_start);
-        dst->lr_end = cpu_to_be64(src->lr_end);
-}
-EXPORT_SYMBOL(range_cpu_to_be);
+/** Special fid for "fid" special object in .lustre */
+const struct lu_fid LU_OBF_FID = { .f_seq = FID_SEQ_DOT_LUSTRE,
+                                   .f_oid = FID_OID_DOT_LUSTRE_OBF,
+                                   .f_ver = 0x0000000000000000 };
+EXPORT_SYMBOL(LU_OBF_FID);
 
-void range_be_to_cpu(struct lu_range *dst, const struct lu_range *src)
-{
-        /* check that all fields are converted */
-        CLASSERT(sizeof *src ==
-                 sizeof src->lr_start +
-                 sizeof src->lr_end);
-        dst->lr_start = be64_to_cpu(src->lr_start);
-        dst->lr_end = be64_to_cpu(src->lr_end);
-}
-EXPORT_SYMBOL(range_be_to_cpu);
+/** Special fid for "lost+found" special object in .lustre */
+const struct lu_fid LU_LPF_FID = { .f_seq = FID_SEQ_DOT_LUSTRE,
+				   .f_oid = FID_OID_DOT_LUSTRE_LPF,
+				   .f_ver = 0x0000000000000000 };
+EXPORT_SYMBOL(LU_LPF_FID);
 
-#endif
+/** "/lost+found" - special FID for ldiskfs backend, invislbe to client. */
+const struct lu_fid LU_BACKEND_LPF_FID = { .f_seq = FID_SEQ_LOCAL_FILE,
+					   .f_oid = OSD_LPF_OID,
+					   .f_ver = 0x0000000000000000 };
+EXPORT_SYMBOL(LU_BACKEND_LPF_FID);