1 files changed, 10 insertions, 9 deletions

diff --git a/fs/namespace.c b/fs/namespace.c
index a40685d800a8..06f8e63f6cb1 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -614,9 +614,11 @@ static inline void __mntput(struct vfsmount *mnt)
          */
         for_each_possible_cpu(cpu) {
                 struct mnt_writer *cpu_writer = &per_cpu(mnt_writers, cpu);
-                if (cpu_writer->mnt != mnt)
-                        continue;
                 spin_lock(&cpu_writer->lock);
+                if (cpu_writer->mnt != mnt) {
+                        spin_unlock(&cpu_writer->lock);
+                        continue;
+                }
                 atomic_add(cpu_writer->count, &mnt->__mnt_writers);
                 cpu_writer->count = 0;
                 /*
@@ -1128,7 +1130,7 @@ static int do_umount(struct vfsmount *mnt, int flags)
  * unixes. Our API is identical to OSF/1 to avoid making a mess of AMD
  */
 
-asmlinkage long sys_umount(char __user * name, int flags)
+SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
 {
         struct path path;
         int retval;
@@ -1160,7 +1162,7 @@ out:
 /*
  *      The 2.0 compatible umount. No flags.
  */
-asmlinkage long sys_oldumount(char __user * name)
+SYSCALL_DEFINE1(oldumount, char __user *, name)
 {
         return sys_umount(name, 0);
 }
@@ -2045,9 +2047,8 @@ struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
         return new_ns;
 }
 
-asmlinkage long sys_mount(char __user * dev_name, char __user * dir_name,
-                          char __user * type, unsigned long flags,
-                          void __user * data)
+SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
+                char __user *, type, unsigned long, flags, void __user *, data)
 {
         int retval;
         unsigned long data_page;
@@ -2172,8 +2173,8 @@ static void chroot_fs_refs(struct path *old_root, struct path *new_root)
  *    though, so you may need to say mount --bind /nfs/my_root /nfs/my_root
  *    first.
  */
-asmlinkage long sys_pivot_root(const char __user * new_root,
-                               const char __user * put_old)
+SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
+                const char __user *, put_old)
 {
         struct vfsmount *tmp;
         struct path new, old, parent_path, root_parent, root;