After more careful consideration, I don't see any reasons why
page_table_lock is necessary for dealing with vmas. I found one spot in
swapoff, but it was easily changed to mmap_sem. I've beat on this code and
mjb has beat on this code with no problems. Here's the patch to remove it.
Feel free to poke holes in it.
Dave McCracken
======================================================================
Dave McCracken IBM Linux Base Kernel Team 1-512-838-3059
dmccr@us.ibm.com T/L 678-3059
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