Re: [PATCH 10/11] vfs: trylock inode->i_rwsem in iterate_dir() to support nowait

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To: Hao Xu <hao.xu@xxxxxxxxx>
Subject: Re: [PATCH 10/11] vfs: trylock inode->i_rwsem in iterate_dir() to support nowait
From: Christian Brauner <brauner@xxxxxxxxxx>
Date: Mon, 4 Sep 2023 11:37:35 +0200
Cc: io-uring@xxxxxxxxxxxxxxx, Jens Axboe <axboe@xxxxxxxxx>, Dominique Martinet <asmadeus@xxxxxxxxxxxxx>, Pavel Begunkov <asml.silence@xxxxxxxxx>, Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>, Stefan Roesch <shr@xxxxxx>, Clay Harris <bugs@xxxxxxxxxxx>, Dave Chinner <david@xxxxxxxxxxxxx>, "Darrick J . Wong" <djwong@xxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, linux-cachefs@xxxxxxxxxx, ecryptfs@xxxxxxxxxxxxxxx, linux-nfs@xxxxxxxxxxxxxxx, linux-unionfs@xxxxxxxxxxxxxxx, bpf@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, linux-btrfs@xxxxxxxxxxxxxxx, codalist@xxxxxxxxxxxxxxxxxxxxxxxx, linux-f2fs-devel@xxxxxxxxxxxxxxxxxxxxx, cluster-devel@xxxxxxxxxx, linux-mm@xxxxxxxxx, linux-nilfs@xxxxxxxxxxxxxxx, devel@xxxxxxxxxxxxxxxxxx, linux-cifs@xxxxxxxxxxxxxxx, samba-technical@xxxxxxxxxxxxxxx, linux-mtd@xxxxxxxxxxxxxxxxxxx, Wanpeng Li <wanpengli@xxxxxxxxxxx>
In-reply-to: <20230827132835.1373581-11-hao.xu@linux.dev>
References: <20230827132835.1373581-1-hao.xu@linux.dev> <20230827132835.1373581-11-hao.xu@linux.dev>

On Sun, Aug 27, 2023 at 09:28:34PM +0800, Hao Xu wrote:
> From: Hao Xu <howeyxu@xxxxxxxxxxx>
> 
> Trylock inode->i_rwsem in iterate_dir() to support nowait semantics and
> error out -EAGAIN when there is contention.
> 
> Signed-off-by: Hao Xu <howeyxu@xxxxxxxxxxx>
> ---

Unreviewable until you rebased on -rc1 as far as I'm concerned because
the code in here changed a lot.

References:
- [PATCH v6 00/11] io_uring getdents
  - From: Hao Xu
- [PATCH 10/11] vfs: trylock inode->i_rwsem in iterate_dir() to support nowait
  - From: Hao Xu

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