Cc: Greg Cc: Jianyu Zhan On 2014/6/3 8:56, Andy Lutomirski wrote: > Sorry I didn't notice this earlier. Linux 3.15 breaks my production But 3.15 hasn't been released. :) > system :( The cause appears to be: > > commit 2bd59d48ebfb3df41ee56938946ca0dd30887312 > Author: Tejun Heo <tj@xxxxxxxxxx> > Date: Tue Feb 11 11:52:49 2014 -0500 > > cgroup: convert to kernfs > > In particular, this piece: > > - sb->s_magic = CGROUP_SUPER_MAGIC; > > The result is that cgroup shows up with the wrong magic number, so my > code goes "oh crap, cgroupfs isn't mounted" and fails. > > I can change my code to hack around this, but I can imagine other > things getting tripped up. Is there still time to fix this? > This should be fixed by "kernfs: move the last knowledge of sysfs out from kernfs". It's in driver-core-next. https://git.kernel.org/cgit/linux/kernel/git/gregkh/driver-core.git/commit/?h=driver-core-next&id=26fc9cd200ec839e0b3095e05ae018f27314e7aa -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html