> can I call add_to_swap_cache() without the big kernel lock, and with a
> normal spinlock? This would simplify shm_swap().
> AFAICS, 2.3.26 does not sleep in add_to_swap_cache, and it does not need
> the big kernel lock.
yes - i believe this should be done as part of threading the swapping code
completely: protect the swap map with a spinlock, etc.
-- mingo
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