Commit 0100e6bb authored Feb 23, 2021 by Jens Axboe

arch: ensure parisc/powerpc handle PF_IO_WORKER in copy_thread()



In the arch addition of PF_IO_WORKER, I missed parisc and powerpc for
some reason. Fix that up, ensuring they handle PF_IO_WORKER like they do
PF_KTHREAD in copy_thread().

Reported-by: Bruno Goncalves <bgoncalv@redhat.com>
Fixes: 4727dc20 ("arch: setup PF_IO_WORKER threads like PF_KTHREAD")
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 62e398be

arch/parisc/kernel/process.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -200,7 +200,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
		extern void * const ret_from_kernel_thread;
		extern void * const child_return;

		if (unlikely(p->flags & PF_KTHREAD)) {
		if (unlikely(p->flags & (PF_KTHREAD \| PF_IO_WORKER))) {
		/* kernel thread */
		memset(cregs, 0, sizeof(struct pt_regs));
		if (!usp) /* idle thread */

arch/powerpc/kernel/process.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1670,7 +1670,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
		/* Copy registers */
		sp -= sizeof(struct pt_regs);
		childregs = (struct pt_regs *) sp;
		if (unlikely(p->flags & PF_KTHREAD)) {
		if (unlikely(p->flags & (PF_KTHREAD \| PF_IO_WORKER))) {
		/* kernel thread */
		memset(childregs, 0, sizeof(struct pt_regs));
		childregs->gpr[1] = sp + sizeof(struct pt_regs);