linux-kernel - Re: [RFC 6/6] drivers: staging: ion: add ION_IOC

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Message-ID: <00b201d22438$d51aaf30$7f500d90$@alibaba-inc.com>
Date:   Wed, 12 Oct 2016 11:29:23 +0800
From:   "Hillf Danton" <hillf.zj@...baba-inc.com>
To:     "'Ruchi Kandoi'" <kandoiruchi@...gle.com>,
        <gregkh@...uxfoundation.org>, <arve@...roid.com>,
        <riandrews@...roid.com>, <sumit.semwal@...aro.org>,
        <arnd@...db.de>, <labbott@...hat.com>, <viro@...iv.linux.org.uk>,
        <jlayton@...chiereds.net>, <bfields@...ldses.org>,
        <mingo@...hat.com>, <peterz@...radead.org>,
        <akpm@...ux-foundation.org>, <keescook@...omium.org>,
        <mhocko@...e.com>, <oleg@...hat.com>, <john.stultz@...aro.org>,
        <mguzik@...hat.com>, <jdanis@...gle.com>, <adobriyan@...il.com>,
        <ghackmann@...gle.com>, <kirill.shutemov@...ux.intel.com>,
        <vbabka@...e.cz>, <dave.hansen@...ux.intel.com>,
        <dan.j.williams@...el.com>, <hannes@...xchg.org>,
        <iamjoonsoo.kim@....com>, <luto@...nel.org>, <tj@...nel.org>,
        <vdavydov.dev@...il.com>, <ebiederm@...ssion.com>,
        <linux-kernel@...r.kernel.org>, <devel@...verdev.osuosl.org>,
        <linux-media@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <linaro-mm-sig@...ts.linaro.org>, <linux-fsdevel@...r.kernel.org>,
        <linux-mm@...ck.org>
Subject: Re: [RFC 6/6] drivers: staging: ion: add ION_IOC_TAG ioctl

On Wednesday, October 12, 2016 7:50 AM Ruchi Kandoi wrote:
> +/**
> + * struct ion_fd_data - metadata passed from userspace for a handle

s/fd/tag/ ?

> + * @handle:	a handle
> + * @tag: a string describing the buffer
> + *
> + * For ION_IOC_TAG userspace populates the handle field with
> + * the handle returned from ion alloc and type contains the memtrack_type which
> + * accurately describes the usage for the memory.
> + */
> +struct ion_tag_data {
> +	ion_user_handle_t handle;
> +	char tag[ION_MAX_TAG_LEN];
> +};
> +