Re: buffer.c lock_kernel() -- removal

[Alexander Viro]

On Thu, 10 Jan 2002, Craig Christophel wrote:

> Included is a patch against buffer.c that removes the 
> lock_kernel()/unlock_kernel() pairs in the few functions that they exist.  
> 
> This is for 2.5>2.5.2-pre10.
> 
> I beleive that I checked all of the member functions for locking schematics 
> but if you can prove me wrong -- go for it.   The only issue I can see would 

... and in the very first chunk we have
  
> -	lock_kernel();
>  	sync_inodes_sb(sb);
>  	DQUOT_SYNC(sb);
>  	lock_super(sb);
>  	if (sb->s_dirt && sb->s_op && sb->s_op->write_super)
>  		sb->s_op->write_super(sb);
>  	unlock_super(sb);
> -	unlock_kernel();

i.e. method that used to have BKL loses it.  Unless you are willing to post
the results of audit for all filesystems - sorry, no go.