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@roeck-us.net Cc: Guenter Roeck linux@roeck-us.net Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: stable@vger.kernel.org Signed-off-by: Ming Lei ming.lei@redhat.com
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