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

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[ Upstream commit 0100e6bbdbb79404e56939313662b42737026574 ]

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: 4727dc20e042 ("arch: setup PF_IO_WORKER threads like PF_KTHREAD")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jens Axboe
2021-02-23 11:57:20 -07:00
committed by Greg Kroah-Hartman
parent 320c8057ec
commit dd26e2cec7
2 changed files with 2 additions and 2 deletions
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2
arch/parisc/kernel/process.c
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@@ -200,7 +200,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
extern void * const ret_from_kernel_thread; extern void * const ret_from_kernel_thread;
extern void * const child_return; extern void * const child_return;
if (unlikely(p->flags & PF_KTHREAD)) { if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
/* kernel thread */ /* kernel thread */
memset(cregs, 0, sizeof(struct pt_regs)); memset(cregs, 0, sizeof(struct pt_regs));
if (!usp) /* idle thread */ if (!usp) /* idle thread */

2
arch/powerpc/kernel/process.c
View File

@@ -1684,7 +1684,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
/* Copy registers */ /* Copy registers */
sp -= sizeof(struct pt_regs); sp -= sizeof(struct pt_regs);
childregs = (struct pt_regs *) sp; childregs = (struct pt_regs *) sp;
if (unlikely(p->flags & PF_KTHREAD)) { if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
/* kernel thread */ /* kernel thread */
memset(childregs, 0, sizeof(struct pt_regs)); memset(childregs, 0, sizeof(struct pt_regs));
childregs->gpr[1] = sp + sizeof(struct pt_regs); childregs->gpr[1] = sp + sizeof(struct pt_regs);