linux-ext4 - Re: ext4 support iopoll

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Message-ID: <20200206144804.GC26114@quack2.suse.cz>
Date:   Thu, 6 Feb 2020 15:48:04 +0100
From:   Jan Kara <jack@...e.cz>
To:     Xiaoguang Wang <xiaoguang.wang@...ux.alibaba.com>
Cc:     Ext4 Developers List <linux-ext4@...r.kernel.org>,
        Jan Kara <jack@...e.cz>, ted <tytso@....edu>
Subject: Re: ext4 support iopoll

Hello,

On Thu 06-02-20 21:29:15, Xiaoguang Wang wrote:
> While testing iouring in ext4, we find ext4 does not support .iopoll yet, since
> commit "ext4: introduce direct I/O write using iomap infrastructure", seems that
> ext4 can support iopoll as well, just add a ".iopoll = iomap_dio_iopoll,".
> So I wonder is there any special reason that ext4 does not have have this iopoll
> interface? Thanks.

I'm not aware of any so feel free to submit a patch :)

									Honza
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR