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Subject: Re: [PATCH v2] f2fs: add nowait aio support
To:     Hyunchul Lee <hyc.lee@gmail.com>, Jaegeuk Kim <jaegeuk@kernel.org>
CC:     <linux-f2fs-devel@lists.sourceforge.net>,
        <linux-kernel@vger.kernel.org>, <kernel-team@lge.com>,
        Christoph Hellwig <hch@lst.de>,
        Goldwyn Rodrigues <rgoldwyn@suse.com>,
        Hyunchul Lee <cheol.lee@lge.com>
References: <1520493679-17778-1-git-send-email-hyc.lee@gmail.com>
From:   Chao Yu <yuchao0@huawei.com>
Message-ID: <9dce3494-50c1-4cf8-52b9-f8e8ead2f82b@huawei.com>
Date:   Thu, 8 Mar 2018 17:04:35 +0800
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On 2018/3/8 15:21, Hyunchul Lee wrote:
> From: Hyunchul Lee <cheol.lee@lge.com>
> 
> This patch adds nowait aio support[1].
> 
> Return EAGAIN if any of the following checks fail for direct I/O:
>   - i_rwsem is not lockable
>   - Blocks are not allocated at the write location
> 
> And xfstests generic/471 is passed.
> 
>  [1]: 6be96d "Introduce RWF_NOWAIT and FMODE_AIO_NOWAIT"
> 
> Signed-off-by: Hyunchul Lee <cheol.lee@lge.com>

Reviewed-by: Chao Yu <yuchao0@huawei.com>

Thanks,