-#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 */ };
#endif
-struct mds_grp_hash_entry;
+#define LLOG_LVFS
/* simple.c */
+
struct lvfs_ucred {
- struct mds_grp_hash_entry *luc_ghash;
- struct group_info *luc_ginfo;
+ struct upcall_cache_entry *luc_uce;
__u32 luc_fsuid;
__u32 luc_fsgid;
__u32 luc_cap;
- __u32 luc_uid;
- __u32 luc_umask;
+ __u32 luc_suppgid1;
+ __u32 luc_suppgid2;
+ __u32 luc_umask;
};
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 vfsmount *pwdmnt;
struct dentry *pwd;
mm_segment_t fs;
struct lvfs_ucred luc;
- struct lvfs_callback_ops cb_ops;
int ngroups;
+ struct lvfs_callback_ops cb_ops;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,4)
struct group_info *group_info;
#else
struct group_info group_info;
#endif
#ifdef OBD_CTXT_DEBUG
- int pid;
__u32 magic;
#endif
};
#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);
dput(de);
}
-#ifdef S_PDIROPS
-void *lock_dir(struct inode *dir, struct qstr *name);
-void unlock_dir(struct inode *dir, void *lock);
-#endif
-
/* We need to hold the inode semaphore over the dcache lookup itself, or we
* run the risk of entering the filesystem lookup path concurrently on SMP
* systems, and instantiating two inodes for the same entry. We still
int fid_namelen)
{
struct dentry *dchild;
-#ifdef S_PDIROPS
- struct qstr qstr;
- void *lock;
- qstr.name = fid_name;
- qstr.len = fid_namelen;
- lock = lock_dir(dparent->d_inode, &qstr);
-#else
- down(&dparent->d_inode->i_sem);
-#endif
+ LOCK_INODE_MUTEX(dparent->d_inode);
dchild = lookup_one_len(fid_name, dparent, fid_namelen);
+ UNLOCK_INODE_MUTEX(dparent->d_inode);
-#ifdef S_PDIROPS
- unlock_dir(dparent->d_inode, lock);
-#else
- up(&dparent->d_inode->i_sem);
-#endif
+ 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;
}
}
#endif
-static inline int ll_fid2str(char *str, __u64 id, __u32 generation)
-{
- return sprintf(str, "%llx:%08x", (unsigned long long)id, generation);
-}
-
#endif