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From:   "Fabio M. De Francesco" <fmdefrancesco@gmail.com>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com>,
        Todd Kjos <tkjos@android.com>,
        Martijn Coenen <maco@android.com>,
        Joel Fernandes <joel@joelfernandes.org>,
        Christian Brauner <brauner@kernel.org>,
        Hridya Valsaraju <hridya@google.com>,
        Suren Baghdasaryan <surenb@google.com>,
        Ira Weiny <ira.weiny@intel.com>, linux-kernel@vger.kernel.org
Cc:     "Fabio M. De Francesco" <fmdefrancesco@gmail.com>
Subject: [PATCH 0/3] binder: Use kmap_local_page() in binder_alloc.c
Date:   Sat, 23 Apr 2022 12:24:18 +0200
Message-Id: <20220423102421.16869-1-fmdefrancesco@gmail.com>
MIME-Version: 1.0
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Precedence: bulk

Use kmap_local_page() in binder_alloc.c because kmap() and kmap_atomic()
are being deprecated and kmap_local_page is preferred where it is feasible.

With kmap_local_page(), the mapping is per thread, CPU local and not
globally visible. Furthermore, the mapping can be acquired from any
context, including interrupts.

Fabio M. De Francesco (3):
  binder: Use memset_page() in binder_alloc_clear_buf()
  binder: Use kmap_local_page() in binder_alloc_copy_user_to_buffer()
  binder: Use kmap_local_page() in binder_alloc_get_page()

 drivers/android/binder_alloc.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

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2.34.1