Branch HEAD

[fs/lustre-release.git] / lustre / include / linux / lvfs.h

diff --git a/lustre/include/linux/lvfs.h b/lustre/include/linux/lvfs.h
index f51cf73..7c2f6ae 100644 (file)
--- a/lustre/include/linux/lvfs.h
+++ b/lustre/include/linux/lvfs.h
@@ -1,25 +1,54 @@
-#ifndef __LVFS_H__
-#define __LVFS_H__
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
+ *
+ *   This file is part of Lustre, http://www.lustre.org.
+ *
+ *   Lustre is free software; you can redistribute it and/or
+ *   modify it under the terms of version 2 of the GNU General Public
+ *   License as published by the Free Software Foundation.
+ *
+ *   Lustre is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Lustre; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * lustre VFS/process permission interface
+ */
 
-#include <linux/kp30.h>
+#ifndef __LINUX_LVFS_H__
+#define __LINUX_LVFS_H__
 
-#define LL_FID_NAMELEN (16 + 1 + 8 + 1)
+#ifndef __LVFS_H__
+#error Do not #include this file directly. #include <lvfs.h> instead
+#endif
 
 #if defined __KERNEL__
+#include <linux/lustre_compat25.h>
 #include <linux/lvfs_linux.h>
-#endif 
-
-#ifdef LIBLUSTRE
-#include <lvfs_user_fs.h>
+#else
+struct group_info { /* unused */ };
+#include <liblustre.h>
 #endif
 
+#define LLOG_LVFS
+
 /* simple.c */
+
 struct lvfs_ucred {
-        __u32 luc_fsuid;
-        __u32 luc_fsgid;
-        __u32 luc_cap;
-        __u32 luc_suppgid1;
-        __u32 luc_suppgid2;
+        __u32                   luc_uid;
+        __u32                   luc_gid;
+        __u32                   luc_fsuid;
+        __u32                   luc_fsgid;
+        __u32                   luc_cap;
+        __u32                   luc_umask;
+       struct group_info      *luc_ginfo;
+       struct mdt_identity    *luc_identity;
 };
 
 struct lvfs_callback_ops {
@@ -29,14 +58,15 @@ struct lvfs_callback_ops {
 #define OBD_RUN_CTXT_MAGIC      0xC0FFEEAA
 #define OBD_CTXT_DEBUG          /* development-only debugging */
 struct lvfs_run_ctxt {
-        struct vfsmount *pwdmnt;
-        struct dentry   *pwd;
-        mm_segment_t     fs;
-        struct lvfs_ucred luc;
-        int              ngroups;
+        struct vfsmount         *pwdmnt;
+        struct dentry           *pwd;
+        mm_segment_t             fs;
+        struct lvfs_ucred        luc;
+        int                      ngroups;
         struct lvfs_callback_ops cb_ops;
+        struct group_info       *group_info;
 #ifdef OBD_CTXT_DEBUG
-        __u32            magic;
+        __u32                    magic;
 #endif
 };
 
@@ -46,19 +76,11 @@ struct lvfs_run_ctxt {
 #define OBD_SET_CTXT_MAGIC(ctxt) do {} while(0)
 #endif
 
-/* lvfs_common.c */
-struct dentry *lvfs_fid2dentry(struct lvfs_run_ctxt *, __u64, __u32, __u64 ,void *data);
-
-void push_ctxt(struct lvfs_run_ctxt *save, struct lvfs_run_ctxt *new_ctx,
-               struct lvfs_ucred *cred);
-void pop_ctxt(struct lvfs_run_ctxt *saved, struct lvfs_run_ctxt *new_ctx,
-              struct lvfs_ucred *cred);
-
 #ifdef __KERNEL__
-int lvfs_reint(struct super_block *sb, void *r_rec);
-int lvfs_undo(struct super_block *sb, void *r_rec);
+
 struct dentry *simple_mkdir(struct dentry *dir, char *name, int mode, int fix);
 struct dentry *simple_mknod(struct dentry *dir, char *name, int mode, int fix);
+int lustre_rename(struct dentry *dir, char *oldname, char *newname);
 int lustre_fread(struct file *file, void *buf, int len, loff_t *off);
 int lustre_fwrite(struct file *file, const void *buf, int len, loff_t *off);
 int lustre_fsync(struct file *file);
@@ -84,10 +106,19 @@ static inline struct dentry *ll_lookup_one_len(const char *fid_name,
 {
         struct dentry *dchild;
 
-        down(&dparent->d_inode->i_sem);
+        LOCK_INODE_MUTEX(dparent->d_inode);
         dchild = lookup_one_len(fid_name, dparent, fid_namelen);
-        up(&dparent->d_inode->i_sem);
+        UNLOCK_INODE_MUTEX(dparent->d_inode);
+
+        if (IS_ERR(dchild) || dchild->d_inode == NULL)
+                return dchild;
 
+        if (is_bad_inode(dchild->d_inode)) {
+                CERROR("bad inode returned %lu/%u\n",
+                       dchild->d_inode->i_ino, dchild->d_inode->i_generation);
+                dput(dchild);
+                dchild = ERR_PTR(-ENOENT);
+        }
         return dchild;
 }
 
@@ -99,9 +130,4 @@ static inline void ll_sleep(int t)
 }
 #endif
 
-static inline int ll_fid2str(char *str, __u64 id, __u32 generation)
-{
-        return sprintf(str, "%llx:%08x", (unsigned long long)id, generation);
-}
-
 #endif