On Mon, Mar 07, 2016 at 03:28:11AM +0000, Daeho Jeong wrote: > Hi, > > I got a trouble while I am developing a patch for EXT4 filesytem. > Actually, I used a percpu rw semaphore in my patch and there was no > problem when I built EXT4 filesystem as built-in mode. However, when > kbuild auto build robot built EXT4 filesystem with my patch as a "module", > a bulid error occurred because percpu_free_rwsem() function is not exported. > > I noticed that other functions except percpu_free_rwsem() were exported in > 2015. > Is there any reason for percpu_free_rwsem() not to be exported? > If I need the function to be exported, should I do that in my patch? :-)
Sounds like a question for the ext4 maintainers. You can find them in the MAINTAINERS file. Thanx, Paul