Re: [solved] 2.6.15-rc5-rt4 fails to compile

[Jan Engelhardt]

>CONFIG_RWSEM_GENERIC_SPINLOCK is always y when PREEMPT_RT=y, but (see 
>linux/rwsem.h) in this case, <linux/rwsem-semaphore.h> is included, which 
>lacks macros like RWSEM_ACTIVE_BIAS used in lib/rwsem.c.

Hm this is the same as the other "2.6.15-rc5-rt4 fails to compile". rwsem.c 
should not even be in there.
Is this a Kconfig bug then?

config RWSEM_GENERIC_SPINLOCK
        bool
        depends on M386 || PREEMPT_RT
        default y
config RWSEM_XCHGADD_ALGORITHM
        bool
        default y if !RWSEM_GENERIC_SPINLOCK

PREEMPT_RT=y, but the .config file has RWSEM_XCHGADD_ALGORITHM=y!
Maybe the "default y if !RWSEM..." is not evaluated and we need something 
like this?

	default y if !RWSEM_GENERIC_SPINLOCK
	default n if RWSEM_GENERIC_SPINLOCK


Jan Engelhardt
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