[Lustre-devel] llog API, locking and concurrency

[Lustre-devel] llog API, locking and concurrency

[DEGREMONT Aurelien]

Hello

I'm wondering what is the correct way to use llog_ API regarding locking 
and concurrencies?

When looking at code, it seems llog already deal with proper locking 
when several thread access the same llog.
The codes that use this king of log do not seem to add more locking when 
using it.

Is this correct? llog_* call can be called without taking care of 
concurrency?


Thanks

Aur?lien

[Lustre-devel] llog API, locking and concurrency

[Alex Zhuravlev]

correct, llog is doing serialization internally.

thanks, Alex

On Wed, Apr 6, 2011 at 8:58 PM, DEGREMONT Aurelien <
aurelien.degremont@cea.fr> wrote:

> Hello
>
> I'm wondering what is the correct way to use llog_ API regarding locking
> and concurrencies?
>
> When looking at code, it seems llog already deal with proper locking
> when several thread access the same llog.
> The codes that use this king of log do not seem to add more locking when
> using it.
>
> Is this correct? llog_* call can be called without taking care of
> concurrency?
>
>
> Thanks
>
> Aur?lien
> _______________________________________________
> Lustre-devel mailing list
> Lustre-devel at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-devel
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.lustre.org/pipermail/lustre-devel-lustre.org/attachments/20110406/1da732b7/attachment.htm>