Re: [RFC 1/2] rwsem: introduce upgrade_read interface

[Christoph Hellwig]

On Wed, Oct 16, 2024 at 12:51:23PM +0100, Matthew Wilcox wrote:
> > It's obviously a try_upgrade_read, right?
> 
> Well, that's confusing.  "try" usually means "don't sleep", and this
> sleeps.  Maybe it shouldn't sleep; ie we make this fail if there's any
> other reader?  It'll succeed less often, but it'll be easier to
> understand.

To me try primarily implies that it can fail and the return value
needs to be checked.  But I guess it has different implications to
different people.