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([2a01:4b00:bd21:4f00:7cc6:d3ca:494:116c]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6ae15690dbbsm551642a12.22.2026.09.30.03.09.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 30 Sep 2026 03:09:46 -0700 (PDT) Message-ID: <77db5aa5-f160-48fb-ab59-a754b100bc34@gmail.com> Date: Wed, 30 Sep 2026 11:09:41 +0100 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 06/13] nvme-pci: implement dma-buf backed requests To: Christophe JAILLET Cc: agk@redhat.com, akpm@linux-foundation.org, anuj20.g@samsung.com, axboe@kernel.dk, bmarzins@redhat.com, brauner@kernel.org, christian.koenig@amd.com, dm-devel@lists.linux.dev, dri-devel@lists.freedesktop.org, hch@lst.de, io-uring@vger.kernel.org, jack@suse.cz, joshi.k@samsung.com, kbusch@kernel.org, linaro-mm-sig@lists.linaro.org, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-nvme@lists.infradead.org, matthew.brost@intel.com, mpatocka@redhat.com, nj.shetty@samsung.com, phil.cayton@intel.com, sagi@grimberg.me, snitzer@kernel.org, sumit.semwal@linaro.org, tushar.gohad@intel.com, viro@zeniv.linux.org.uk, william.power@intel.com References: <5a35ad21-c9d4-4dab-a4f0-97baee6e2301@wanadoo.fr> Content-Language: en-US From: Pavel Begunkov In-Reply-To: <5a35ad21-c9d4-4dab-a4f0-97baee6e2301@wanadoo.fr> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 9/29/26 16:45, Christophe JAILLET wrote: ...>> +    for_each_sgtable_dma_sg(sgt, sg, tmp) { >> +        dma_addr_t dma_addr = sg_dma_address(sg); >> +        unsigned long sg_len = sg_dma_len(sg); >> + >> +        if ((sg_len % NVME_CTRL_PAGE_SIZE) || >> +            (dma_addr % NVME_CTRL_PAGE_SIZE)) { >> +            ret = -EINVAL; >> +            goto err; >> +        } >> +        while (sg_len) { >> +            map->dma_list[i++] = dma_addr; >> +            dma_addr += NVME_CTRL_PAGE_SIZE; >> +            sg_len -= NVME_CTRL_PAGE_SIZE; >> +        } >> +    } >> + >> +    ret = dma_buf_io_init_map(ctx, &map->base, sgt); >> +    if (ret) >> +        goto err; >> +    map->nr_entries = nr_entries; >> +    map->sgt = sgt; >> +    return &map->base; >> +err: >> +    if (sgt) >> +        dma_buf_unmap_attachment(attach, sgt, ctx->dir); >> +    kfree(map); > > kvfree()? Sashiko also flagged this one. I'm going to apply the nits from both emails, thanks. -- Pavel Begunkov