Re: [PATCH v2 0/2] slightly rework memcg cache id determination

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri 14-06-13 14:04:34, Glauber Costa wrote:
> Michal,
> 
> Let me know if this is more acceptable to you. I didn't take your suggestion of
> having an id and idx functions, because I think this could potentially be even
> more confusing: in the sense that people would need to wonder a bit what is the
> difference between them.

Any clean up is better than nothing. I still think that split up and
making the 2 functions explicit would be better but I do not think this
is really that important. 

> Note please that we never use the id as an array index outside of memcg core.

Now but that doesn't prevent future abuse.

> So for memcg core, I have changed, in Patch 2, each direct use of idx as an
> index to include a VM_BUG_ON in case we would get an invalid index.

OK. If you had an _idx variant then you wouldn't need to add that
VM_BUG_ON at every single place where you use it as an index and do not
risk that future calls would forget about VM_BUG_ON.

> For the other cases, I have consolidated a bit the usage pattern around
> memcg_cache_id.  Now the tests are all pretty standardized.

OK, Great!
 
> Glauber Costa (2):
>   memcg: make cache index determination more robust
>   memcg: consolidate callers of memcg_cache_id
> 
>  mm/memcontrol.c | 19 ++++++++++++-------
>  1 file changed, 12 insertions(+), 7 deletions(-)
> 
> -- 
> 1.8.1.4
> 

-- 
Michal Hocko
SUSE Labs
--
To unsubscribe from this list: send the line "unsubscribe cgroups" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]     [Monitors]

  Powered by Linux