vfs_nointent-2.6-rhel4.patch

lustre 1.6.5 source code

Index: linux-2.6.9-5.0.3.EL/fs/namei.c
===================================================================
--- linux-2.6.9-5.0.3.EL.orig/fs/namei.c	2005-02-26 13:29:11.948782168 +0200
+++ linux-2.6.9-5.0.3.EL/fs/namei.c	2005-02-26 13:29:13.355568304 +0200
@@ -1380,7 +1380,7 @@
 		if (!error) {
 			DQUOT_INIT(inode);
 			
-			error = do_truncate(dentry, 0);
+			error = do_truncate(dentry, 0, 1);
 		}
 		put_write_access(inode);
 		if (error)
@@ -1638,6 +1638,7 @@
 	char * tmp;
 	struct dentry * dentry;
 	struct nameidata nd;
+	intent_init(&nd.intent, IT_LOOKUP);
 
 	if (S_ISDIR(mode))
 		return -EPERM;
@@ -1648,6 +1649,15 @@
 	error = path_lookup(tmp, LOOKUP_PARENT, &nd);
 	if (error)
 		goto out;
+
+	if (nd.dentry->d_inode->i_op->mknod_raw) {
+		struct inode_operations *op = nd.dentry->d_inode->i_op;
+		error = op->mknod_raw(&nd, mode, dev);
+		/* the file system wants to use normal vfs path now */
+		if (error != -EOPNOTSUPP)
+			goto out2;
+	}
+
 	dentry = lookup_create(&nd, 0);
 	error = PTR_ERR(dentry);
 
@@ -1674,6 +1684,7 @@
 		dput(dentry);
 	}
 	up(&nd.dentry->d_inode->i_sem);
+out2:
 	path_release(&nd);
 out:
 	putname(tmp);
@@ -1715,10 +1726,18 @@
 	if (!IS_ERR(tmp)) {
 		struct dentry *dentry;
 		struct nameidata nd;
+		intent_init(&nd.intent, IT_LOOKUP);
 
 		error = path_lookup(tmp, LOOKUP_PARENT, &nd);
 		if (error)
 			goto out;
+		if (nd.dentry->d_inode->i_op->mkdir_raw) {
+			struct inode_operations *op = nd.dentry->d_inode->i_op;
+			error = op->mkdir_raw(&nd, mode);
+			/* the file system wants to use normal vfs path now */
+			if (error != -EOPNOTSUPP)
+				goto out2;
+		}
 		dentry = lookup_create(&nd, 1);
 		error = PTR_ERR(dentry);
 		if (!IS_ERR(dentry)) {
@@ -1728,6 +1747,7 @@
 			dput(dentry);
 		}
 		up(&nd.dentry->d_inode->i_sem);
+out2:
 		path_release(&nd);
 out:
 		putname(tmp);
@@ -1808,6 +1828,7 @@
 	char * name;
 	struct dentry *dentry;
 	struct nameidata nd;
+	intent_init(&nd.intent, IT_LOOKUP);
 
 	name = getname(pathname);
 	if(IS_ERR(name))
@@ -1828,6 +1849,16 @@
 			error = -EBUSY;
 			goto exit1;
 	}
+
+	if (nd.dentry->d_inode->i_op->rmdir_raw) {
+		struct inode_operations *op = nd.dentry->d_inode->i_op;
+
+		error = op->rmdir_raw(&nd);
+		/* the file system wants to use normal vfs path now */
+		if (error != -EOPNOTSUPP)
+			goto exit1;
+	}
+
 	down(&nd.dentry->d_inode->i_sem);
 	dentry = lookup_hash(&nd.last, nd.dentry);
 	error = PTR_ERR(dentry);
@@ -1886,6 +1917,7 @@
 	struct dentry *dentry;
 	struct nameidata nd;
 	struct inode *inode = NULL;
+	intent_init(&nd.intent, IT_LOOKUP);
 
 	name = getname(pathname);
 	if(IS_ERR(name))
@@ -1897,6 +1929,13 @@
 	error = -EISDIR;
 	if (nd.last_type != LAST_NORM)
 		goto exit1;
+	if (nd.dentry->d_inode->i_op->unlink_raw) {
+		struct inode_operations *op = nd.dentry->d_inode->i_op;
+		error = op->unlink_raw(&nd);
+		/* the file system wants to use normal vfs path now */
+		if (error != -EOPNOTSUPP)
+			goto exit1;
+	}
 	down(&nd.dentry->d_inode->i_sem);
 	dentry = lookup_hash(&nd.last, nd.dentry);
 	error = PTR_ERR(dentry);
@@ -1963,10 +2002,18 @@
 	if (!IS_ERR(to)) {
 		struct dentry *dentry;
 		struct nameidata nd;
+		intent_init(&nd.intent, IT_LOOKUP);
 
 		error = path_lookup(to, LOOKUP_PARENT, &nd);
 		if (error)
 			goto out;
+		if (nd.dentry->d_inode->i_op->symlink_raw) {
+			struct inode_operations *op = nd.dentry->d_inode->i_op;
+			error = op->symlink_raw(&nd, from);
+			/* the file system wants to use normal vfs path now */
+			if (error != -EOPNOTSUPP)
+				goto out2;
+		}
 		dentry = lookup_create(&nd, 0);
 		error = PTR_ERR(dentry);
 		if (!IS_ERR(dentry)) {
@@ -1974,6 +2021,7 @@
 			dput(dentry);
 		}
 		up(&nd.dentry->d_inode->i_sem);
+out2:
 		path_release(&nd);
 out:
 		putname(to);
@@ -2037,6 +2085,8 @@
 	struct nameidata nd, old_nd;
 	int error;
 	char * to;
+	intent_init(&nd.intent, IT_LOOKUP);
+	intent_init(&old_nd.intent, IT_LOOKUP);
 
 	to = getname(newname);
 	if (IS_ERR(to))
@@ -2051,6 +2101,13 @@
 	error = -EXDEV;
 	if (old_nd.mnt != nd.mnt)
 		goto out_release;
+	if (nd.dentry->d_inode->i_op->link_raw) {
+		struct inode_operations *op = nd.dentry->d_inode->i_op;
+		error = op->link_raw(&old_nd, &nd);
+		/* the file system wants to use normal vfs path now */
+		if (error != -EOPNOTSUPP)
+			goto out_release;
+	}
 	new_dentry = lookup_create(&nd, 0);
 	error = PTR_ERR(new_dentry);
 	if (!IS_ERR(new_dentry)) {
@@ -2223,6 +2280,8 @@
 	struct dentry * old_dentry, *new_dentry;
 	struct dentry * trap;
 	struct nameidata oldnd, newnd;
+	intent_init(&oldnd.intent, IT_LOOKUP);
+	intent_init(&newnd.intent, IT_LOOKUP);
 
 	error = path_lookup(oldname, LOOKUP_PARENT, &oldnd);
 	if (error)
@@ -2245,6 +2304,13 @@
 	if (newnd.last_type != LAST_NORM)
 		goto exit2;
 
+	if (old_dir->d_inode->i_op->rename_raw) {
+		error = old_dir->d_inode->i_op->rename_raw(&oldnd, &newnd);
+		/* the file system wants to use normal vfs path now */
+		if (error != -EOPNOTSUPP)
+			goto exit2;
+	}
+
 	trap = lock_rename(new_dir, old_dir);
 
 	old_dentry = lookup_hash(&oldnd.last, old_dir);
@@ -2276,8 +2342,7 @@
 	if (new_dentry == trap)
 		goto exit5;
 
-	error = vfs_rename(old_dir->d_inode, old_dentry,
-				   new_dir->d_inode, new_dentry);
+	error = vfs_rename(old_dir->d_inode, old_dentry, new_dir->d_inode, new_dentry);
 exit5:
 	dput(new_dentry);
 exit4:
Index: linux-2.6.9-5.0.3.EL/fs/open.c
===================================================================
--- linux-2.6.9-5.0.3.EL.orig/fs/open.c	2005-02-26 13:29:11.962780040 +0200
+++ linux-2.6.9-5.0.3.EL/fs/open.c	2005-02-26 13:29:13.359567696 +0200
@@ -191,9 +191,10 @@
 	return error;
 }
 
-int do_truncate(struct dentry *dentry, loff_t length)
+int do_truncate(struct dentry *dentry, loff_t length, int called_from_open)
 {
 	int err;
+	struct inode_operations *op = dentry->d_inode->i_op;
 	struct iattr newattrs;
 
 	/* Not pretty: "inode->i_size" shouldn't really be signed. But it is. */
@@ -204,7 +205,14 @@
 	newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
 	down(&dentry->d_inode->i_sem);
 	down_write(&dentry->d_inode->i_alloc_sem);
-	err = notify_change(dentry, &newattrs);
+	if (called_from_open)
+		newattrs.ia_valid |= ATTR_FROM_OPEN;
+	if (op->setattr_raw) {
+		newattrs.ia_valid |= ATTR_RAW;
+		newattrs.ia_ctime = CURRENT_TIME;
+		err = op->setattr_raw(dentry->d_inode, &newattrs);
+	} else
+		err = notify_change(dentry, &newattrs);
 	up_write(&dentry->d_inode->i_alloc_sem);
 	up(&dentry->d_inode->i_sem);
 	return err;
@@ -260,7 +268,7 @@
 	error = locks_verify_truncate(inode, NULL, length);
 	if (!error) {
 		DQUOT_INIT(inode);
-		error = do_truncate(nd.dentry, length);
+		error = do_truncate(nd.dentry, length, 0);
 	}
 	put_write_access(inode);
 
@@ -312,7 +320,7 @@
 
 	error = locks_verify_truncate(inode, file, length);
 	if (!error)
-		error = do_truncate(dentry, length);
+		error = do_truncate(dentry, length, 0);
 out_putf:
 	fput(file);
 out:
@@ -391,9 +399,19 @@
 		    (error = permission(inode,MAY_WRITE,&nd)) != 0)
 			goto dput_and_out;
 	}
-	down(&inode->i_sem);
-	error = notify_change(nd.dentry, &newattrs);
-	up(&inode->i_sem);
+	if (inode->i_op->setattr_raw) {
+		struct inode_operations *op = nd.dentry->d_inode->i_op;
+
+		newattrs.ia_valid |= ATTR_RAW;
+		error = op->setattr_raw(inode, &newattrs);
+		/* the file system wants to use normal vfs path now */
+		if (error != -EOPNOTSUPP)
+			goto dput_and_out;
+	} else {
+		down(&inode->i_sem);
+		error = notify_change(nd.dentry, &newattrs);
+		up(&inode->i_sem);
+	}
 dput_and_out:
 	path_release(&nd);
 out:
@@ -444,9 +462,19 @@
 		    (error = permission(inode,MAY_WRITE,&nd)) != 0)
 			goto dput_and_out;
 	}
-	down(&inode->i_sem);
-	error = notify_change(nd.dentry, &newattrs);
-	up(&inode->i_sem);
+	if (inode->i_op->setattr_raw) {
+		struct inode_operations *op = nd.dentry->d_inode->i_op;
+
+		newattrs.ia_valid |= ATTR_RAW;
+		error = op->setattr_raw(inode, &newattrs);
+		/* the file system wants to use normal vfs path now */
+		if (error != -EOPNOTSUPP)
+			goto dput_and_out;
+	} else {
+		down(&inode->i_sem);
+		error = notify_change(nd.dentry, &newattrs);
+		up(&inode->i_sem);
+	}
 dput_and_out:
 	path_release(&nd);
 out:
@@ -600,36 +628,52 @@
 
 EXPORT_SYMBOL_GPL(sys_chroot);
 
-asmlinkage long sys_fchmod(unsigned int fd, mode_t mode)
+int chmod_common(struct dentry *dentry, mode_t mode)
 {
-	struct inode * inode;
-	struct dentry * dentry;
-	struct file * file;
-	int err = -EBADF;
+	struct inode * inode = dentry->d_inode;
 	struct iattr newattrs;
+	int error = -EROFS;
 
-	file = fget(fd);
-	if (!file)
+	if (IS_RDONLY(inode))
 		goto out;
+	
+	if (inode->i_op->setattr_raw) {
+		struct inode_operations *op = dentry->d_inode->i_op;
 
-	dentry = file->f_dentry;
-	inode = dentry->d_inode;
+		newattrs.ia_mode = mode;
+		newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
+		newattrs.ia_valid |= ATTR_RAW;
+		error = op->setattr_raw(inode, &newattrs);
+		/* the file system wants to use the normal vfs path now */
+		if (error != -EOPNOTSUPP)
+			goto out;
+	}
 
-	err = -EROFS;
-	if (IS_RDONLY(inode))
-		goto out_putf;
-	err = -EPERM;
+	error = -EPERM;
 	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
-		goto out_putf;
+		goto out;
+
 	down(&inode->i_sem);
 	if (mode == (mode_t) -1)
 		mode = inode->i_mode;
 	newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
 	newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
-	err = notify_change(dentry, &newattrs);
+	error = notify_change(dentry, &newattrs);
 	up(&inode->i_sem);
+out:
+	return error;
+}
 
-out_putf:
+asmlinkage long sys_fchmod(unsigned int fd, mode_t mode)
+{
+	struct file * file;
+	int err = -EBADF;
+
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	err = chmod_common(file->f_dentry, mode);
 	fput(file);
 out:
 	return err;
@@ -638,32 +682,13 @@
 asmlinkage long sys_chmod(const char __user * filename, mode_t mode)
 {
 	struct nameidata nd;
-	struct inode * inode;
 	int error;
-	struct iattr newattrs;
 
 	error = user_path_walk(filename, &nd);
 	if (error)
 		goto out;
-	inode = nd.dentry->d_inode;
-
-	error = -EROFS;
-	if (IS_RDONLY(inode))
-		goto dput_and_out;
-
-	error = -EPERM;
-	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
-		goto dput_and_out;
-
-	down(&inode->i_sem);
-	if (mode == (mode_t) -1)
-		mode = inode->i_mode;
-	newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
-	newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
-	error = notify_change(nd.dentry, &newattrs);
-	up(&inode->i_sem);
 
-dput_and_out:
+	error = chmod_common(nd.dentry, mode);
 	path_release(&nd);
 out:
 	return error;
@@ -684,6 +709,18 @@
 	if (IS_RDONLY(inode))
 		goto out;
 	error = -EPERM;
+	if (inode->i_op->setattr_raw) {
+		struct inode_operations *op = dentry->d_inode->i_op;
+
+		newattrs.ia_uid = user;
+		newattrs.ia_gid = group;
+		newattrs.ia_valid = ATTR_UID | ATTR_GID | ATTR_CTIME;
+		newattrs.ia_valid |= ATTR_RAW;
+		error = op->setattr_raw(inode, &newattrs);
+		/* the file system wants to use normal vfs path now */
+		if (error != -EOPNOTSUPP)
+			return error;
+	}
 	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
 		goto out;
 	newattrs.ia_valid =  ATTR_CTIME;
@@ -697,6 +734,7 @@
 	}
 	if (!S_ISDIR(inode->i_mode))
 		newattrs.ia_valid |= ATTR_KILL_SUID|ATTR_KILL_SGID;
+
 	down(&inode->i_sem);
 	error = notify_change(dentry, &newattrs);
 	up(&inode->i_sem);
Index: linux-2.6.9-5.0.3.EL/fs/exec.c
===================================================================
--- linux-2.6.9-5.0.3.EL.orig/fs/exec.c	2005-02-26 13:29:11.936783992 +0200
+++ linux-2.6.9-5.0.3.EL/fs/exec.c	2005-02-26 13:29:13.362567240 +0200
@@ -1451,7 +1451,7 @@
 		goto close_fail;
 	if (!file->f_op->write)
 		goto close_fail;
-	if (do_truncate(file->f_dentry, 0) != 0)
+	if (do_truncate(file->f_dentry, 0, 0) != 0)
 		goto close_fail;
 
 	retval = binfmt->core_dump(signr, regs, file);
Index: linux-2.6.9-5.0.3.EL/include/linux/fs.h
===================================================================
--- linux-2.6.9-5.0.3.EL.orig/include/linux/fs.h	2005-02-26 13:29:11.987776240 +0200
+++ linux-2.6.9-5.0.3.EL/include/linux/fs.h	2005-02-26 13:29:13.365566784 +0200
@@ -926,13 +926,20 @@
 	int (*create) (struct inode *,struct dentry *,int, struct nameidata *);
 	struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameidata *);
 	int (*link) (struct dentry *,struct inode *,struct dentry *);
+	int (*link_raw) (struct nameidata *,struct nameidata *);
 	int (*unlink) (struct inode *,struct dentry *);
+	int (*unlink_raw) (struct nameidata *);
 	int (*symlink) (struct inode *,struct dentry *,const char *);
+	int (*symlink_raw) (struct nameidata *,const char *);
 	int (*mkdir) (struct inode *,struct dentry *,int);
+	int (*mkdir_raw) (struct nameidata *,int);
 	int (*rmdir) (struct inode *,struct dentry *);
+	int (*rmdir_raw) (struct nameidata *);
 	int (*mknod) (struct inode *,struct dentry *,int,dev_t);
+	int (*mknod_raw) (struct nameidata *,int,dev_t);
 	int (*rename) (struct inode *, struct dentry *,
 			struct inode *, struct dentry *);
+	int (*rename_raw) (struct nameidata *, struct nameidata *);
 	int (*readlink) (struct dentry *, char __user *,int);
 	int (*follow_link) (struct dentry *, struct nameidata *);
 	void (*put_link) (struct dentry *, struct nameidata *);
@@ -1234,7 +1241,7 @@
 
 /* fs/open.c */
 
-extern int do_truncate(struct dentry *, loff_t start);
+extern int do_truncate(struct dentry *, loff_t start, int called_from_open);
 extern struct file *filp_open(const char *, int, int);
 extern struct file * dentry_open(struct dentry *, struct vfsmount *, int);
 extern struct file * dentry_open_it(struct dentry *, struct vfsmount *, int, struct lookup_intent *);
Index: linux-2.6.9-5.0.3.EL/net/unix/af_unix.c
===================================================================
--- linux-2.6.9-5.0.3.EL.orig/net/unix/af_unix.c	2005-02-25 10:25:31.000000000 +0200
+++ linux-2.6.9-5.0.3.EL/net/unix/af_unix.c	2005-02-26 13:29:13.387563440 +0200
@@ -676,6 +676,7 @@
 	int err = 0;
 	
 	if (sunname->sun_path[0]) {
+		intent_init(&nd.intent, IT_LOOKUP);
 		err = path_lookup(sunname->sun_path, LOOKUP_FOLLOW, &nd);
 		if (err)
 			goto fail;