linux-kernel - Re: [PATCH] random: convert to using fops->write

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Message-ID: <YobePA1M0htNbTRN@zx2c4.com>
Date:   Fri, 20 May 2022 02:18:04 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] random: convert to using fops->write_iter()

Hi Jens,

On Thu, May 19, 2022 at 05:43:15PM -0600, Jens Axboe wrote:
> +	while (iov_iter_count(iter)) {
> +		block_len = min(iov_iter_count(iter), sizeof(block));

Whereas get_random_bytes_user() used a separate len param, it looks like
this function is using iov's len. Maybe that's not such a bad idea? I'll
give a shot at fixing that up in both places, and you can tell me what
you think.

Jason