linux-kernel - Re: [PATCH] f2fs: no need to take page lock in readdir

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Date:   Wed, 27 Feb 2019 20:44:29 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     Gao Xiang <gaoxiang25@...wei.com>, Jaegeuk Kim <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-fsdevel@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] f2fs: no need to take page lock in readdir

On 2019/2/21 12:57, Gao Xiang wrote:
> VFS will take inode_lock for readdir, therefore no need to
> take page lock in readdir at all just as the majority of
> other generic filesystems.
> 
> This patch improves concurrency since .iterate_shared
> was introduced to VFS years ago.
> 
> Signed-off-by: Gao Xiang <gaoxiang25@...wei.com>

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

Thanks,