Messages in this thread | | | Date | Wed, 6 Feb 2019 11:52:33 -0700 | From | Jason Gunthorpe <> | Subject | Re: [LSF/MM TOPIC] Discuss least bad options for resolving longterm-GUP usage by RDMA |
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On Wed, Feb 06, 2019 at 10:35:04AM -0800, Matthew Wilcox wrote:
> > Admittedly, I'm coming in late to this conversation, but did I miss the > > portion where that alternative was ruled out? > > That's my preferred option too, but the preponderance of opinion leans > towards "We can't give people a way to make files un-truncatable".
I haven't heard an explanation why blocking ftruncate is worse than giving people a way to break RDMA using process by calling ftruncate??
Isn't it exactly the same argument the other way?
Jason
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