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fs: remove fs devices list 

We store the fs devices in a list only because we want to
check if the fs driver needs a backingstore or not. The
driver will bail out anyway if it needs a backingstore and
doesn't find one. So we can remove this check and thus remove
the list of fs devices.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2012-02-14 21:14:25 +01:00
parent b0c22c2f34
commit 33b5ead7e6
2 changed files with 1 additions and 24 deletions
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23
fs/fs.c
View File

@ -701,7 +701,6 @@ 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;
}
@ -715,7 +714,6 @@ EXPORT_SYMBOL(register_fs_driver);
*/
int mount(const char *device, const char *fsname, const char *_path)
{
struct fs_driver_d *fs_drv = NULL, *f;
struct mtab_entry *entry;
struct fs_device_d *fsdev;
struct device_d *parent_device = NULL;
@ -733,18 +731,6 @@ int mount(const char *device, const char *fsname, const char *_path)
goto out;
}
list_for_each_entry(f, &fs_driver_list, list) {
if (!strcmp(f->drv.name, fsname)) {
fs_drv = f;
break;
}
}
if (!fs_drv) {
errno = -EINVAL;
goto out;
}
if (mtab_root) {
if (path_check_prereq(path, S_IFDIR))
goto out;
@ -757,14 +743,7 @@ int mount(const char *device, const char *fsname, const char *_path)
}
fsdev = xzalloc(sizeof(struct fs_device_d));
if (!(fs_drv->flags & FS_DRIVER_NO_DEV)) {
fsdev->backingstore = strdup(device);
if (!device) {
printf("need a device for driver %s\n", fsname);
errno = -ENODEV;
goto out1;
}
}
fsdev->backingstore = xstrdup(device);
safe_strncpy(fsdev->dev.name, fsname, MAX_DRIVER_NAME);
fsdev->dev.type_data = fsdev;
fsdev->dev.id = get_free_deviceid(fsdev->dev.name);

2
include/fs.h
View File

@ -72,8 +72,6 @@ struct fs_driver_d {
struct driver_d drv;
unsigned long flags;
struct list_head list;
};
struct mtab_entry {