Push BKL into do_mount()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 2 insertions, 7 deletions

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 42ee05981e71..9a3334ae282e 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -371,8 +371,6 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, char __user *, path,
         int retval = -EINVAL;
         char *name;
 
-        lock_kernel();
-
         name = getname(path);
         retval = PTR_ERR(name);
         if (IS_ERR(name))
@@ -392,7 +390,6 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, char __user *, path,
         }
         putname(name);
  out:
-        unlock_kernel();
         return retval;
 }
 
diff --git a/fs/compat.c b/fs/compat.c
index bb2a9b2e8173..6aefb776dfeb 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -812,10 +812,8 @@ asmlinkage long compat_sys_mount(char __user * dev_name, char __user * dir_name,
                 }
         }
 
-        lock_kernel();
         retval = do_mount((char*)dev_page, dir_page, (char*)type_page,
                         flags, (void*)data_page);
-        unlock_kernel();
 
  out4:
         free_page(data_page);
diff --git a/fs/namespace.c b/fs/namespace.c
index 7e537f0393b5..4740f7bdb556 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1921,6 +1921,7 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
         if (retval)
                 goto dput_out;
 
+        lock_kernel();
         if (flags & MS_REMOUNT)
                 retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
                                     data_page);
@@ -1933,6 +1934,7 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
         else
                 retval = do_new_mount(&path, type_page, flags, mnt_flags,
                                       dev_name, data_page);
+        unlock_kernel();
 dput_out:
         path_put(&path);
         return retval;
@@ -2046,10 +2048,8 @@ SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
         if (retval < 0)
                 goto out3;
 
-        lock_kernel();
         retval = do_mount((char *)dev_page, dir_page, (char *)type_page,
                           flags, (void *)data_page);
-        unlock_kernel();
         free_page(data_page);
 
 out3: