Re: Does shmem_getpage==>shmem_alloc_page==>alloc_page_vma hold mmap_sem?

Hugh wrote:
> It's safe but horrid.

Ok - thanks for the explanation.

Now I don't feel so bad about some of my cpuset locking hacks.

(Yes, Andrew, I'm still looking at my latest hack, 
the down_write_trylock() call in cpuset.c refresh_mems.)

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <[email protected]> 1.925.600.0401
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References:
- Does shmem_getpage==>shmem_alloc_page==>alloc_page_vma hold mmap_sem?
  - From: Paul Jackson <[email protected]>
- Re: Does shmem_getpage==>shmem_alloc_page==>alloc_page_vma hold mmap_sem?
  - From: Hugh Dickins <[email protected]>

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