Messages in this thread | | | From | Herbert Xu <> | Subject | Re: [PATCH 1/24] make atomic_read() behave consistently on alpha | Date | Fri, 10 Aug 2007 16:21:46 +0800 |
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Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote: > > The compiler is within its rights to read a 32-bit quantity 16 bits at > at time, even on a 32-bit machine. I would be glad to help pummel any > compiler writer that pulls such a dirty trick, but the C standard really > does permit this.
Code all over the kernel assumes that 32-bit reads/writes are atomic so while such a compiler might be legal it certainly can't compile Linux.
Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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