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Date:   Tue, 18 Aug 2020 12:12:26 +0200
From:   Christian Brauner <christian.brauner@ubuntu.com>
To:     "Eric W. Biederman" <ebiederm@xmission.com>
Cc:     linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
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Subject: Re: [PATCH 15/17] file: In f_dupfd read RLIMIT_NOFILE once.
Message-ID: <20200818101226.weamow3swms6xizm@wittgenstein>
References: <87ft8l6ic3.fsf@x220.int.ebiederm.org>
 <20200817220425.9389-15-ebiederm@xmission.com>
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On Mon, Aug 17, 2020 at 05:04:23PM -0500, Eric W. Biederman wrote:
> Simplify the code, and remove the chance of races by reading
> RLIMIT_NOFILE only once in f_dupfd.
> 
> Pass the read value of RLIMIT_NOFILE into alloc_fd which is the other
> location the rlimit was read in f_dupfd.  As f_dupfd is the only
> caller of alloc_fd this changing alloc_fd is trivially safe.
> 
> Further this causes alloc_fd to take all of the same arguments as
> __alloc_fd except for the files_struct argument.
> 
> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
> ---

Acked-by: Christian Brauner <christian.brauner@ubuntu.com>