>>On Fri, 29 May 1998, Pavel Machek wrote:
>>
>>>Don't think so. Well, it is safe on i386, but on other architectures,
>>>test_and_set_bit is not guaranteed to be atomic. [And I'm afraid that
>>
>>Arggh I thought that test_and_set_bit() was atomic on all ports (since I
>>looked only its i386 implementation)!
>
>It should be -- that's what it's for. It's atomic on Alpha, m68k, ARM,
>PPC and MIPS by my reading of the code. I don't really understand Sparc
After reading Pavel sentence I looked the MIPS implementation and it didn'
t seem so atomic for SMP (but I didn' t looked also asm-mips/smp.h...), so
I trusted Pavel...
>Pavel, which port were you thinking of when you said it wasn't atomic?
Probably the HP48GX port ;-).
Andrea[s] Arcangeli
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