linux-kernel - Re: dm: ioctl: use kvfree

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Message-ID: <570BCC51.50004@gmail.com>
Date:	Mon, 11 Apr 2016 21:39:53 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Mike Snitzer <snitzer@...hat.com>
CC:	Alasdair Kergon <agk@...hat.com>, Shaohua Li <shli@...nel.org>,
	linux-kernel@...r.kernel.org, dm-devel@...hat.com,
	linux-raid@...r.kernel.org
Subject: Re: dm: ioctl: use kvfree

On Monday 11 April 2016 08:47 PM, Mike Snitzer wrote:
> On Mon, Apr 11 2016 at 11:14am -0400,
> Sudip Mukherjee <sudipm.mukherjee@...il.com> wrote:
>
>> We can use kvfree() instead of calling kfree() and vfree() based on
>> if-else and param_flags. kvfree() will check the type of address and
>> will call the respective function to free it.
>> Additionally we can also remove the use of DM_PARAMS_KMALLOC and
>> DM_PARAMS_VMALLOC.
>>
>> Signed-off-by: Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>
>
> Have you actually tested htis?  Last time I looked to do this it exposed
> crashes.  I don't have time to dig into this again right now but this is
> _not_ as simple as this patch implies.
>

No, it was just build tested. Is it possible to test it in qemu or kvm?

regards
sudip