linux-kernel - Re: [PATCH 8/8] btrfs: drop mmap

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Message-ID: <20180926002439.GB18567@dastard>
Date:   Wed, 26 Sep 2018 10:24:39 +1000
From:   Dave Chinner <david@...morbit.com>
To:     Josef Bacik <josef@...icpanda.com>
Cc:     akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
        kernel-team@...com, linux-btrfs@...r.kernel.org, riel@...hat.com,
        hannes@...xchg.org, tj@...nel.org, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 8/8] btrfs: drop mmap_sem in mkwrite for btrfs

On Tue, Sep 25, 2018 at 11:30:11AM -0400, Josef Bacik wrote:
> @@ -1454,6 +1463,11 @@ static inline int fixup_user_fault(struct task_struct *tsk,
>  	BUG();
>  	return -EFAULT;
>  }
> +stiatc inline struct file *maybe_unlock_mmap_for_io(struct vm_area_struct *vma,
> +						    int flags)
> +{
> +	return NULL;
> +}

This doesn't compile either.

-Dave.
-- 
Dave Chinner
david@...morbit.com