On Mon 16-05-16 13:32:28, Linus Torvalds wrote: > On Mon, May 16, 2016 at 7:55 AM, Ingo Molnar <[email protected]> wrote: > > > > This tree, by Michal Hocko, implements down_write_killable(). The main > > usecase > > will be to update mm_sem usage sites to use this new API, > > Hmm. Is somebody (Michal?) looking at down_read_killable() too?
I wasn't because I didn't need it for my oom_reaper use case. > The VFS layer will want it with the pending parallel lookup code - the > inode semaphore is being converted to a rwsem, and there's a couple of > "killable" users.. The first step actually just wants to the exclusive > case (ie the write case that this adds), but I think the readdir code > could really use a reading version too.. This is more a question for Al but I do not think adding killable read lock is a big deal. I can certainly help with it. -- Michal Hocko SUSE Labs
