linux-kernel - Re: [PATCH v9 3/5] vfs: Use dlock list for superblock's inode list

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Message-ID: <20180917141528.GI3902@linux-r8p5>
Date:   Mon, 17 Sep 2018 07:15:28 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     Waiman Long <longman@...hat.com>
Cc:     Alexander Viro <viro@...iv.linux.org.uk>, Jan Kara <jack@...e.com>,
        Jeff Layton <jlayton@...chiereds.net>,
        "J. Bruce Fields" <bfields@...ldses.org>,
        Tejun Heo <tj@...nel.org>,
        Christoph Lameter <cl@...ux-foundation.org>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Andi Kleen <andi@...stfloor.org>,
        Dave Chinner <dchinner@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>
Subject: Re: [PATCH v9 3/5] vfs: Use dlock list for superblock's inode list

On Wed, 12 Sep 2018, Waiman Long wrote:

>@@ -927,8 +921,6 @@ struct inode *new_inode(struct super_block *sb)
> {
> 	struct inode *inode;
>
>-	spin_lock_prefetch(&sb->s_inode_list_lock);

I think we can get rid of the spin_lock_prefetch call altogether as this is the
only user left afaict.