Re: execve-question

[Alexander Viro <viro@math.psu.edu>]

On Sun, 10 Oct 1999, Manfred Spraul wrote:

> what happens / should happen if I call execve() in a multi-threaded
> application?
> 
> I don't see that the mm structure is copied, and obviously noone
> acquires the mm->mmap_sem.

Check fs/exec.c::exec_mmap(). mmap_sem is _not_ needed here. We are not
copying the mm - we are creating new one (exec drops all mappings). For
$DEITY sake, stop applying band-aids.

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