/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * lustre/lib/lvfs_linux.c
- * Lustre filesystem abstraction routines
+ * GPL HEADER START
*
- * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
- * Author: Andreas Dilger <adilger@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * 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.
+ * This program 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * 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
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * 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.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/lvfs/lvfs_linux.c
+ *
+ * Author: Andreas Dilger <adilger@clusterfs.com>
*/
#ifndef EXPORT_SYMTAB
EXPORT_SYMBOL(simple_mknod);
/* utility to make a directory */
-struct dentry *simple_mkdir(struct dentry *dir, char *name, int mode, int fix)
+struct dentry *simple_mkdir(struct dentry *dir, struct vfsmount *mnt,
+ char *name, int mode, int fix)
{
struct dentry *dchild;
int err = 0;
GOTO(out_up, dchild);
}
- err = vfs_mkdir(dir->d_inode, dchild, mode);
+ err = ll_vfs_mkdir(dir->d_inode, dchild, mnt, mode);
if (err)
GOTO(out_err, err);
EXPORT_SYMBOL(simple_mkdir);
/* utility to rename a file */
-int lustre_rename(struct dentry *dir, char *oldname, char *newname)
+int lustre_rename(struct dentry *dir, struct vfsmount *mnt,
+ char *oldname, char *newname)
{
struct dentry *dchild_old, *dchild_new;
int err = 0;
if (IS_ERR(dchild_new))
GOTO(put_old, err = PTR_ERR(dchild_new));
- err = vfs_rename(dir->d_inode, dchild_old, dir->d_inode, dchild_new);
+ err = ll_vfs_rename(dir->d_inode, dchild_old, mnt,
+ dir->d_inode, dchild_new, mnt);
dput(dchild_new);
put_old:
}
EXPORT_SYMBOL(l_readdir);
+int l_notify_change(struct vfsmount *mnt, struct dentry *dchild,
+ struct iattr *newattrs)
+{
+ int rc;
+
+ LOCK_INODE_MUTEX(dchild->d_inode);
+#ifdef HAVE_SECURITY_PLUG
+ rc = notify_change(dchild, mnt, newattrs);
+#else
+ rc = notify_change(dchild, newattrs);
+#endif
+ UNLOCK_INODE_MUTEX(dchild->d_inode);
+ return rc;
+}
+EXPORT_SYMBOL(l_notify_change);
+
+/* utility to truncate a file */
+int simple_truncate(struct dentry *dir, struct vfsmount *mnt,
+ char *name, loff_t length)
+{
+ struct dentry *dchild;
+ struct iattr newattrs;
+ int err = 0;
+ ENTRY;
+
+ CDEBUG(D_INODE, "truncating file %.*s to %lld\n", (int)strlen(name),
+ name, (long long)length);
+ dchild = ll_lookup_one_len(name, dir, strlen(name));
+ if (IS_ERR(dchild))
+ GOTO(out, err = PTR_ERR(dchild));
+
+ if (dchild->d_inode) {
+ int old_mode = dchild->d_inode->i_mode;
+ if (S_ISDIR(old_mode)) {
+ CERROR("found %s (%lu/%u) is mode %o\n", name,
+ dchild->d_inode->i_ino,
+ dchild->d_inode->i_generation, old_mode);
+ GOTO(out_dput, err = -EISDIR);
+ }
+
+ newattrs.ia_size = length;
+ newattrs.ia_valid = ATTR_SIZE;
+ err = l_notify_change(mnt, dchild, &newattrs);
+ }
+ EXIT;
+out_dput:
+ dput(dchild);
+out:
+ return err;
+}
+EXPORT_SYMBOL(simple_truncate);
#ifdef LUSTRE_KERNEL_VERSION
#ifndef HAVE_CLEAR_RDONLY_ON_PUT
}
EXPORT_SYMBOL(lvfs_check_io_health);
-MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
+MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
MODULE_DESCRIPTION("Lustre VFS Filesystem Helper v0.1");
MODULE_LICENSE("GPL");
git://git.whamcloud.com / fs / lustre-release.git / blobdiff