Messages in this thread | | | From | David Howells <> | Subject | Re: [PATCH v4 1/3] mm/slab: Use memzero_explicit() in kzfree() | Date | Tue, 16 Jun 2020 16:46:40 +0100 |
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Waiman Long <longman@redhat.com> wrote:
> The kzfree() function is normally used to clear some sensitive > information, like encryption keys, in the buffer before freeing it back > to the pool. Memset()
"memset()" is all lowercase.
> is currently used for buffer clearing. However unlikely, there is still a > non-zero probability
I'd say "a possibility".
> that
and I'd move "in [the] future" here.
> the compiler may choose to optimize away the > memory clearing especially if LTO is being used in the future. To make sure > that this optimization will never happen
"in these cases"
> , memzero_explicit(), which is introduced in v3.18, is now used in
"instead of"?
> kzfree() to future-proof it.
Davod
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