diff options
| -rw-r--r-- | fs/io_uring.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index ba7ce103667b..680b16f71a03 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -981,7 +981,8 @@ static void io_sq_thread_drop_mm(void) static int __io_sq_thread_acquire_mm(struct io_ring_ctx *ctx) { if (!current->mm) { - if (unlikely(!ctx->sqo_mm || !mmget_not_zero(ctx->sqo_mm))) + if (unlikely(!(ctx->flags & IORING_SETUP_SQPOLL) || + !mmget_not_zero(ctx->sqo_mm))) return -EFAULT; kthread_use_mm(ctx->sqo_mm); } @@ -7259,10 +7260,10 @@ static int io_sq_offload_start(struct io_ring_ctx *ctx, { int ret; - if (ctx->flags & IORING_SETUP_SQPOLL) { - mmgrab(current->mm); - ctx->sqo_mm = current->mm; + mmgrab(current->mm); + ctx->sqo_mm = current->mm; + if (ctx->flags & IORING_SETUP_SQPOLL) { ret = -EPERM; if (!capable(CAP_SYS_ADMIN)) goto err; |