Thread (19 messages) 19 messages, 5 authors, 2017-09-25

Re: [patch] mremap.2: Add description of old_size == 0 functionality

From: Florian Weimer <hidden>
Date: 2017-09-25 14:54:46
Also in: linux-man, linux-mm, lkml

On 09/25/2017 04:52 PM, Michal Hocko wrote:
On Mon 25-09-17 15:16:09, Florian Weimer wrote:
quoted
On 09/25/2017 02:52 PM, Michal Hocko wrote:
quoted
So, how are you going to deal with the CoW and the implementation which
basically means that the newm mmap content is not the same as the
original one?
I don't understand why CoW would kick in.
So you can guarantee nobody is going to write to that memory?
It's mapped readable and executable, but not writable.  So the only 
thing that could interfere would be a debugger.

Thanks,
Florian

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