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From: Greg KH <greg@kroah.com>
To: jim.cromie@gmail.com
Cc: kernelnewbies <kernelnewbies@kernelnewbies.org>
Subject: Re: opaque "pointer" API, model, best practice ?
Date: Wed, 14 Oct 2020 17:21:50 +0200	[thread overview]
Message-ID: <20201014152150.GA3764480@kroah.com> (raw)
In-Reply-To: <CAJfuBxwzG=xY_51m8mSR0i8t4PT9wcPZ6R=0MFDsDESEQTA5Bw@mail.gmail.com>

On Wed, Oct 14, 2020 at 09:09:11AM -0600, jim.cromie@gmail.com wrote:
> hi all,
> 
> is there an api / usage model / or best practice
> for opaque "handles" ?

"it depends" :)

What are you wanting to do exactly?

> Im aware of 1 case:
> the handle returned by zs_malloc
> I have tried to use it, and have run into locking conflicts
> when trying to keep the memory zs_mapped
> longer than the duration of a function.
> OTOH, if I map and unmap within the function, things work,
> but this is unacceptable overhead.
> 
> so I figure I should read some good code,
> rather than keep hacking at bad code.

Again, what are you trying to do?

greg k-h

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  reply	other threads:[~2020-10-14 15:21 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-14 15:09 opaque "pointer" API, model, best practice ? jim.cromie
2020-10-14 15:21 ` Greg KH [this message]
2020-10-14 15:45   ` jim.cromie

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