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SubjectRe: [PATCH 5/6] BC: kernel memory accounting (core)
Oleg Nesterov wrote:
> On 08/23, Kirill Korotaev wrote:
>>+int bc_slab_charge(kmem_cache_t *cachep, void *objp, gfp_t flags)
>>+ unsigned int size;
>>+ struct beancounter *bc, **slab_bcp;
>>+ bc = get_exec_bc();
>>+ if (bc == NULL)
>>+ return 0;
> Is it possible to .exec_bc == NULL ?
> If yes, why do we need init_bc? We can do 'set_exec_bc(NULL)' in __do_IRQ()
> instead.
no, exec_bc can't be NULL. thanks for catching old hunks which historically exist
due to old times when host system was not accounted (bc was NULL).

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