linux-kernel - Re: [PATCH v3 3/3] dm: lookup devices by path with name_to_dev

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Message-ID: <AANLkTin_z74cq3HSWHYLxYzSLDI_HeI9fGAdtJdbvcb_@mail.gmail.com>
Date:	Tue, 25 May 2010 10:58:29 -0500
From:	Will Drewry <wad@...omium.org>
To:	Mike Snitzer <snitzer@...hat.com>
Cc:	dm-devel@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/3] dm: lookup devices by path with name_to_dev_t

On Mon, May 24, 2010 at 6:55 PM, Mike Snitzer <snitzer@...hat.com> wrote:
> On Mon, May 24 2010 at  7:35pm -0400,
> Mike Snitzer <snitzer@...hat.com> wrote:
>
>> On Mon, May 24 2010 at 12:35pm -0400,
>> Will Drewry <wad@...omium.org> wrote:
>>
>> > On Mon, May 24, 2010 at 10:07 AM, Alasdair G Kergon <agk@...hat.com> wrote:
>> > > On Mon, May 24, 2010 at 09:44:07AM -0500, Will Drewry wrote:
>> > >> fwiw, the only reason for the copy was because |path| is a
>> > >> const in the function but not when passed to name_to_dev_t.
>> > >> I wasn't sure what the preferred practice was so I just duped
>> > >> the data needed.
>> > >
>> > > Well check that it is treated as 'const' and send a separate patch to
>> > > the maintainer to add const, perhaps?  If it isn't const (why would
>> > > that be?), then yes we'd need to copy it.
>> >
>> > I'll cross-check the code again and send a patch out if it looks like
>> > it is const-safe.
>>
>> Also, it would see that name_to_dev_t is EXPORT_SYMBOL?
>
> Bleh, I typed that way too quick:
> Also, it would seem that name_to_dev_t is _not_ EXPORT_SYMBOL?


I've just mailed out a patch for each issue:
- const char *: https://patchwork.kernel.org/patch/102228/
- export_symbol: https://patchwork.kernel.org/patch/102229/

Cheers!
will
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