21.06.2023 16:05, Jeff Layton пишет:
Yes. Ambiguous answers are worse than none at all.
But same for read locks, when you query them with F_OFD_GETLK. It doesn't sound ambiguous to me, you get the valid owner, and you can iterate them if you kill them in a process (same as for read locks).
What problem are you trying to solve by having F_OFD_GETLK report a pid?
Just a way to abruptly kill offending lockers, as that most likely means the process hanged (I have a 3rd party code that drives the locking, so it can't be trusted not to hang). Its not essential though, for sure. Curiosity also plays the role here. :) Though if you don't want, I can as well not add a TODO comment to the code.
