Messages in this thread | | | From | Linus Torvalds <> | Date | Thu, 31 Jan 2019 23:05:32 -0800 | Subject | Re: [PATCH 2/3] mm/filemap: initiate readahead even if IOCB_NOWAIT is set for the I/O |
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On Thu, Jan 31, 2019 at 9:16 PM Dave Chinner <david@fromorbit.com> wrote: > > You are conflating "best effort non-blocking operation" with > "atomic guarantee". RWF_NOWAIT/IOCB_NOWAIT is the > former, not the latter.
Right.
That's my *point*, Dave.
It's not 'atomic guarantee", and never will be. We are in 100% agreement. That's what I _said_.
And part of "best effort" is very much "not a security information leak".
I really don't see why you are so argumentative.
As I mentioned earlier in the thread, it's actually quite possible that users will actually find that starting read-ahead is a *good* thing, Dave.
Even - in fact *particularly* - the user you brought up: samba using RWF_NOWAIT to try to do things synchronously quickly.
So Dave, why are you being so negative?
Linus
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