[Linux-cluster] Re: GFS, what's remaining

[Hua Zhong]

On 9/3/05, Andrew Morton <akpm at osdl.org> wrote: 
> 
> Daniel Phillips <phillips at istop.com> wrote:
> >
> > The model you came up with for dlmfs is beyond cute, it's downright 
> clever.
> 
> Actually I think it's rather sick. Taking O_NONBLOCK and making it a
> lock-manager trylock because they're kinda-sorta-similar-sounding? Spare
> me. O_NONBLOCK means "open this file in nonblocking mode", not "attempt to
> acquire a clustered filesystem lock". Not even close.

 No, it's "open this file in nonblocking mode" vs "attempt to acquire a lock 
in nonblocking mode". I think it makes perfect sense to use this flag.
 Of course, whether or not to use open as a means to acquire a lock (in 
either blocking or nonblocking mode) is efficient is another matter.
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