X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=fs%2Ffilesystems.c;h=e3fa77c6ed56dce64e3fe68892022edaa85d0e56;hb=refs%2Fheads%2Fvserver;hp=276be78d5f32995233fb9f011da0af8ef5ff361a;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/fs/filesystems.c b/fs/filesystems.c
index 276be78d5..e3fa77c6e 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -6,11 +6,13 @@
  *  table of configured filesystems
  */
 
+#include <linux/syscalls.h>
 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/kmod.h>
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/sched.h>	/* for 'current' */
 #include <asm/uaccess.h>
 
 /*
@@ -27,7 +29,7 @@
  */
 
 static struct file_system_type *file_systems;
-static rwlock_t file_systems_lock = RW_LOCK_UNLOCKED;
+static DEFINE_RWLOCK(file_systems_lock);
 
 /* WARNING: This can be used only if we _already_ own a reference */
 void get_filesystem(struct file_system_type *fs)
@@ -67,8 +69,6 @@ int register_filesystem(struct file_system_type * fs)
 	int res = 0;
 	struct file_system_type ** p;
 
-	if (!fs)
-		return -EINVAL;
 	if (fs->next)
 		return -EBUSY;
 	INIT_LIST_HEAD(&fs->fs_supers);