Re: [PATCH 1/2] Introduce copy_user_handle_tail routine

[Vitaly Mayatskikh]

Vitaly Mayatskikh <v.mayatskih@xxxxxxxxx> writes:

>> one), by limiting the byte-for-byte one to be within a page, but that 
>> would be a "future enhancement" thing.
>
> Btw, how much does it cost to CPU to do a fault? Can it be compared with
> average time of find_vma()?

Remark: this is for preventing fault in memset, not byte-to-byte copy.

-- 
wbr, Vitaly
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