Messages in this thread | | | Date | Fri, 2 Nov 2001 12:03:25 -0700 | From | Andreas Dilger <> | Subject | Re: bdevname(), cdevname(), kdevname() - static buffers |
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On Nov 02, 2001 10:42 -0800, Russ Weight wrote: > 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)?
I think the general usage of these is only for informational needs, so if there is a rare race it is not worth fixing.
Cheers, Andreas -- Andreas Dilger http://sourceforge.net/projects/ext2resize/ http://www-mddsp.enel.ucalgary.ca/People/adilger/
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