On Wed, May 15, 2019 at 10:38:26AM +0200, Michal Koutný wrote: > Hi, > making this holder of mmap_sem killable was for the reasons of /proc/... > diagnostics was an idea I was pondeering too. However, I think the > approach of pretending we read 0 bytes is not correct. The API would IMO > need to be extended to allow pass a result such as EINTR to the end > caller. > Why do you think it's safe to return just 0?
_killable_, not _interruptible_. The return value will never be seen by userspace because it's dead.
