From 6459b135d9f1cc1aee8d3564a6097ae21e30b2ac Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Wed, 10 Jun 2009 21:15:06 +0200
Subject: Get rid of DEVICE_TYPE_FS usage

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 fs/cramfs/cramfs.c |  3 +--
 fs/devfs.c         |  3 +--
 fs/fs.c            | 27 +++++++++++++++++----------
 fs/ramfs.c         |  3 +--
 4 files changed, 20 insertions(+), 16 deletions(-)

(limited to 'fs')

diff --git a/fs/cramfs/cramfs.c b/fs/cramfs/cramfs.c
index 62f15d6271..4ab9f08071 100644
--- a/fs/cramfs/cramfs.c
+++ b/fs/cramfs/cramfs.c
@@ -455,7 +455,6 @@ static struct fs_driver_d cramfs_driver = {
 	.closedir	= cramfs_closedir,
 	.stat		= cramfs_stat,
 	.drv = {
-		.type = DEVICE_TYPE_FS,
 		.probe = cramfs_probe,
 		.remove = cramfs_remove,
 		.name = "cramfs",
@@ -465,7 +464,7 @@ static struct fs_driver_d cramfs_driver = {
 
 static int cramfs_init(void)
 {
-	return register_driver(&cramfs_driver.drv);
+	return register_fs_driver(&cramfs_driver);
 }
 
 device_initcall(cramfs_init);
diff --git a/fs/devfs.c b/fs/devfs.c
index a945c31998..9b9fb93c5f 100644
--- a/fs/devfs.c
+++ b/fs/devfs.c
@@ -264,7 +264,6 @@ static struct fs_driver_d devfs_driver = {
 	.memmap    = devfs_memmap,
 	.flags     = FS_DRIVER_NO_DEV,
 	.drv = {
-		.type   = DEVICE_TYPE_FS,
 		.probe  = devfs_probe,
 		.remove = devfs_delete,
 		.name = "devfs",
@@ -274,7 +273,7 @@ static struct fs_driver_d devfs_driver = {
 
 static int devfs_init(void)
 {
-	return register_driver(&devfs_driver.drv);
+	return register_fs_driver(&devfs_driver);
 }
 
 device_initcall(devfs_init);
diff --git a/fs/fs.c b/fs/fs.c
index 6f278c0e1f..fc7ada064f 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -635,6 +635,16 @@ int close(int fd)
 }
 EXPORT_SYMBOL(close);
 
+static LIST_HEAD(fs_driver_list);
+
+int register_fs_driver(struct fs_driver_d *fsdrv)
+{
+	list_add_tail(&fsdrv->list, &fs_driver_list);
+	register_driver(&fsdrv->drv);
+	return 0;
+}
+EXPORT_SYMBOL(register_fs_driver);
+
 /*
  * Mount a device to a directory.
  * We do this by registering a new device on which the filesystem
@@ -643,8 +653,7 @@ EXPORT_SYMBOL(close);
  */
 int mount(const char *device, const char *fsname, const char *_path)
 {
-	struct driver_d *drv;
-	struct fs_driver_d *fs_drv;
+	struct fs_driver_d *fs_drv = NULL, *f;
 	struct mtab_entry *entry;
 	struct fs_device_d *fsdev;
 	struct device_d *dev, *parent_device = NULL;
@@ -666,13 +675,14 @@ int mount(const char *device, const char *fsname, const char *_path)
 		goto out;
 	}
 
-	drv = get_driver_by_name(fsname);
-	if (!drv) {
-		errno = -ENODEV;
-		goto out;
+	list_for_each_entry(f, &fs_driver_list, list) {
+		if (!strcmp(f->drv.name, fsname)) {
+			fs_drv = f;
+			break;
+		}
 	}
 
-	if (drv->type != DEVICE_TYPE_FS) {
+	if (!fs_drv) {
 		errno = -EINVAL;
 		goto out;
 	}
@@ -688,8 +698,6 @@ int mount(const char *device, const char *fsname, const char *_path)
 		}
 	}
 
-	fs_drv = drv->type_data;
-
 	if (!fs_drv->flags & FS_DRIVER_NO_DEV) {
 		parent_device = get_device_by_id(device + 5);
 		if (!parent_device) {
@@ -701,7 +709,6 @@ int mount(const char *device, const char *fsname, const char *_path)
 	fsdev = xzalloc(sizeof(struct fs_device_d));
 	fsdev->parent = parent_device;
 	sprintf(fsdev->dev.name, "%s", fsname);
-	fsdev->dev.type = DEVICE_TYPE_FS;
 	fsdev->dev.type_data = fsdev;
 
 	if ((ret = register_device(&fsdev->dev))) {
diff --git a/fs/ramfs.c b/fs/ramfs.c
index 6d675df195..9aad4f6b0a 100644
--- a/fs/ramfs.c
+++ b/fs/ramfs.c
@@ -560,7 +560,6 @@ static struct fs_driver_d ramfs_driver = {
 	.stat      = ramfs_stat,
 	.flags     = FS_DRIVER_NO_DEV,
 	.drv = {
-		.type   = DEVICE_TYPE_FS,
 		.probe  = ramfs_probe,
 		.remove = ramfs_remove,
 		.name = "ramfs",
@@ -570,7 +569,7 @@ static struct fs_driver_d ramfs_driver = {
 
 static int ramfs_init(void)
 {
-	return register_driver(&ramfs_driver.drv);
+	return register_fs_driver(&ramfs_driver);
 }
 
 device_initcall(ramfs_init);
-- 
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