Re: [PATCH] memcg: fix mutex not unlocked onmemcg_create_kmem_cache fail path

[Andrew Morton]

On Thu, 30 Jan 2014 14:13:18 -0800 (PST) David Rientjes <rientjes@xxxxxxxxxx> wrote:

> On Thu, 30 Jan 2014, Andrew Morton wrote:
> 
> > > Why?  We already construct the name in memcg_create_kmem_cache() 
> > > appropriately, we just want to avoid the kstrdup() in 
> > > kmem_cache_create_memcg() since it's pointless like my patch does.
> > 
> > oh, OK, missed that.
> > 
> > The problem now is that the string at kmem_cache.name is PATH_MAX
> > bytes, and PATH_MAX is huuuuuuuge.
> > 
> 
> It always was.

eh?  kmem_cache_create_memcg()'s kstrdup() will allocate the minimum
needed amount of memory.

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