Andi,
The comment in mm/mempolicy.c for alloc_page_vma() states:
Should be called with the mm_sem of the vma hold.
However it seems that the call chain (#ifdef CONFIG_NUMA):
shmem_getpage ==> shmem_alloc_page ==> alloc_page_vma
where shmem_getpage() is called from many of the mm/shmem.c file
operations, is called without holding mmap_sem. There is no
mention of mmap_sem in the entire mm/shmem.c file.
This doesn't seem right.
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <[email protected]> 1.925.600.0401
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