Re: [PATCH 04/18] fs: Implement lazy LRU updates for inodes.

Al Viro
2010-10-08T09:08:07Z

On Fri, Oct 08, 2010 at 04:21:18PM +1100, Dave Chinner wrote:

> void __iget(struct inode *inode)
> {
> - if (atomic_inc_return(&inode->i_count) != 1)
> - return;
> -
> - if (!(inode->i_state & (I_DIRTY|I_SYNC)))
> - list_move(&inode->i_list, &inode_in_use);
> - percpu_counter_dec(&nr_inodes_unused);
> + atomic_inc(&inode->i_count);
> }

Umm... Are you sure we don't rely on implict barriers present in the current
version?