On Thu, Mar 30, 2017 at 10:08:10AM -0700, Linus Torvalds wrote: > What kind of new flag did you even have in mind that would have such > broken semantics that it would completely change the other flags? > Becuase now I'm starting to think that the whole series has an even > deeper bug: stupid new features that were badly thought out and not > even described. Failure atomic file updates, aka O_ATOMIC: https://lwn.net/Articles/573092/ Currently the way to probe for it is a new ioctl to check if atomicy is offered. This should work, but it's rather fragile..
