get rid of s_files and files_lock

The only thing we need it for is alt-sysrq-r (emergency remount r/o)
and these days we can do just as well without going through the
list of files.

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

1 files changed, 0 insertions, 2 deletions

diff --git a/fs/open.c b/fs/open.c
index a1465b1ec8c7..fffbed40dbe9 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -685,7 +685,6 @@ static int do_dentry_open(struct file *f,
         }
 
         f->f_mapping = inode->i_mapping;
-        file_sb_list_add(f, inode->i_sb);
 
         if (unlikely(f->f_mode & FMODE_PATH)) {
                 f->f_op = &empty_fops;
@@ -724,7 +723,6 @@ static int do_dentry_open(struct file *f,
 
 cleanup_all:
         fops_put(f->f_op);
-        file_sb_list_del(f);
         if (f->f_mode & FMODE_WRITE) {
                 put_write_access(inode);
                 if (!special_file(inode->i_mode)) {