Messages in this thread |  | | Subject | Re: bdevname(), cdevname(), kdevname() - static buffers | Date | Fri, 2 Nov 2001 18:59:21 +0000 (GMT) | From | Alan Cox <> |
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> I was looking at the usage of bdevname(), cdevname(), and kdevname(), > and noticed that they each return a pointer to a static buffer. > This buffer contains a formatted device name, which is typically > printed immediately following the call. However, I don't see any > explicit lock protection for these buffers. > > For SMP systems, is there something implicit in their use that > prevents a race on these buffers? Has anyone seen garbled device > names being printed (which might be attributed to a race)?
Not currently, other than statistics being on our side. It probably should be touched up in 2.4 to use per cpu buffers and perhaps 2.5 pass a buffer in - 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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