On Fri, Nov 16, 2018 at 01:52:05AM -0500, Sasha Levin wrote: > On Fri, Nov 16, 2018 at 11:28:25AM +0800, Ming Lei wrote: > > Even though .mq_kobj, ctx->kobj and q->kobj share same lifetime > > from block layer's view, actually they don't because userspace may > > grab one kobject anytime via sysfs, so each kobject's lifetime has > > to be independent, then the objects(mq_kobj, ctx) which hosts its > > own kobject have to be allocated dynamically. > > > > This patch fixes kernel panic issue during booting when DEBUG_KOBJECT_RELEASE > > is enabled. > > > > Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx> > > Cc: Guenter Roeck <linux@xxxxxxxxxxxx> > > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > > Cc: stable@xxxxxxxxxxxxxxx > > Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx> > > What does this patch depend on? It doesn't apply to Linus's tree nor to > the block tree. > > Also, could you please cc lkml with patches? It depends on for-4.21/block. thanks, Ming