Messages in this thread |  | | Date | Tue, 27 Aug 2002 14:44:21 +1000 | From | Stephen Rothwell <> | Subject | Re: Question about leases |
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Hi again,
On Tue, 27 Aug 2002 14:35:17 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote: > > On Tue, 27 Aug 2002 03:06:16 +0200 Jan Hudec <bulb@cimice.maxinet.cz> wrote: > > > > Please can anyone throw a bit light on file leases (fcntl F_SETLEASE > > command) or at least point me to some documentation? I can't find any. > > There isn't any (except maybe the talk I gave at Linux Kongress > last year (http://www.canb.auug.org.au/~sfr/idle.html). > > > As far as I figured out process holding a lease is notified when other > > process opens the leased file. But I am still not sure how the leases > > should then be released and how the process knows which lease was broken > > (struct siginfo does not seem to have union member for that case). > > To release a lease, you use fcntl(fd, F_SETLEASE, F_UNLCK). The file > descriptor of the file that the lease is on is returned in the > siginfo structure.
You should also be aware that there are lots of bugs with file leases before 2.4.20-pre3 and in early 2.5 kernels. -- Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb.auug.org.au/~sfr/ - 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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