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Message-ID: <f08778aa-0e50-40aa-a1be-9cc894b2e219@quicinc.com>
Date:   Wed, 4 Oct 2023 12:09:02 -0700
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Subject: Re: [PATCH v2 1/2] tee: amdtee: use page_alloc_exact() for memory
 allocations
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To:     Devaraj Rangasamy <Devaraj.Rangasamy@amd.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>, <x86@kernel.org>,
        "H . Peter Anvin" <hpa@zytor.com>,
        Jens Wiklander <jens.wiklander@linaro.org>,
        Sumit Garg <sumit.garg@linaro.org>,
        "Paul E . McKenney" <paulmck@kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Randy Dunlap <rdunlap@infradead.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Daniel Sneddon <daniel.sneddon@linux.intel.com>,
        Rijo Thomas <Rijo-john.Thomas@amd.com>,
        SivaSangeetha SK <SivaSangeetha.SK@amd.com>,
        Josh Poimboeuf <jpoimboe@kernel.org>,
        Juergen Gross <jgross@suse.com>,
        Ard Biesheuvel <ardb@kernel.org>,
        Ross Lagerwall <ross.lagerwall@citrix.com>,
        Yuntao Wang <ytcoode@gmail.com>,
        Sean Christopherson <seanjc@google.com>,
        Jarkko Nikula <jarkko.nikula@linux.intel.com>,
        Herbert Xu <herbert@gondor.apana.org.au>,
        Tom Lendacky <thomas.lendacky@amd.com>,
        Mario Limonciello <mario.limonciello@amd.com>,
        <linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <op-tee@lists.trustedfirmware.org>
CC:     Mythri PK <Mythri.Pandeshwarakrishna@amd.com>,
        Nimesh Easow <Nimesh.Easow@amd.com>
References: <fe6fd7781d77ea32064e5b861f33150b28768278.1693340098.git.Devaraj.Rangasamy@amd.com>
From:   Jeff Johnson <quic_jjohnson@quicinc.com>
In-Reply-To: <fe6fd7781d77ea32064e5b861f33150b28768278.1693340098.git.Devaraj.Rangasamy@amd.com>
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On 8/29/2023 1:19 PM, Devaraj Rangasamy wrote:> Use page_alloc_exact() 
to get buffers, instead of
> get_free_pages(), so as to avoid wastage of memory.
> Currently get_free_pages() is allocating at next order,
> while page_alloc_exact() will free the unused pages.

s/page_alloc_exact()/alloc_pages_exact()/ everywhere including subject 
to match the actual code change?