linux-kernel - Re: [PATCH 16/21] binder: refactor page range allocation

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Message-ID: <20231107090835.260342-1-aliceryhl@google.com>
Date:   Tue,  7 Nov 2023 09:08:35 +0000
From:   Alice Ryhl <aliceryhl@...gle.com>
To:     Carlos Llamas <cmllamas@...gle.com>
Cc:     "Arve Hjønnevåg" <arve@...roid.com>,
        Christian Brauner <brauner@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        kernel-team@...roid.com, linux-kernel@...r.kernel.org,
        Martijn Coenen <maco@...roid.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Todd Kjos <tkjos@...roid.com>
Subject: Re: [PATCH 16/21] binder: refactor page range allocation

Carlos Llamas <cmllamas@...gle.com> writes:
> Instead of looping through the page range twice to first determine if
> the mmap lock is required, simply do it per-page as needed. Split out
> all this logic into a separate binder_get_user_page_remote() function.
>
> Signed-off-by: Carlos Llamas <cmllamas@...gle.com>

One nit, otherwise looks okay to me.
Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>

Carlos Llamas <cmllamas@...gle.com> writes:
> +		unsigned long index;
> -		size_t index;

You're changing the type of index to unsigned long here, but it seems to
me that size_t is the correct type.

Alice