Messages in this thread | | | Date | Sun, 12 Sep 2004 23:34:14 +1000 | From | Anton Blanchard <> | Subject | Re: /proc/sys/kernel/pid_max issues |
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> /* > * the semaphore definition > */ > struct rw_semaphore { > /* XXX this should be able to be an atomic_t -- paulus */ > signed int count; > #define RWSEM_UNLOCKED_VALUE 0x00000000 > #define RWSEM_ACTIVE_BIAS 0x00000001 > #define RWSEM_ACTIVE_MASK 0x0000ffff > > that counter is split in 2 16 bit entities....
Yuck, 64k waiters is asking for trouble. BTW x86-64 mentions it can only handle 32k writers, that probably wants looking at.
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