Messages in this thread | | | Date | Thu, 22 Aug 2019 22:12:00 +0200 | From | Michal Hocko <> | Subject | Re: [PATCH] mm/memcg: return value of the function mem_cgroup_from_css() is not checked |
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On Thu 22-08-19 13:07:17, Yizhuo Zhai wrote: > This will happen if variable "wb->memcg_css" is NULL. This case is reported > by our analysis tool.
Does your tool report the particular call path and conditions when that happen? Or is it just a "it mignt happen" kinda thing?
> Since the function mem_cgroup_wb_domain() is visible to the global, we > cannot control caller's behavior.
I am sorry but I do not understand what is this supposed to mean. -- Michal Hocko SUSE Labs
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