On Fri, Feb 22, 2019 at 05:46:01AM +0000, Wei Yongjun wrote:
> A spin lock is taken here so we should use GFP_ATOMIC.
>
> Fixes: 0feaf86d4e69 ("habanalabs: add virtual memory and MMU modules")
> Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
> ---
> drivers/misc/habanalabs/memory.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/misc/habanalabs/memory.c b/drivers/misc/habanalabs/memory.c
> index 9236e52852c6..9e3491dc3b55 100644
> --- a/drivers/misc/habanalabs/memory.c
> +++ b/drivers/misc/habanalabs/memory.c
> @@ -120,7 +120,7 @@ static int alloc_device_memory(struct hl_ctx *ctx, struct hl_mem_in *args,
>
> spin_lock(&vm->idr_lock);
> handle = idr_alloc(&vm->phys_pg_pack_handles, phys_pg_pack, 1, 0,
> - GFP_KERNEL);
> + GFP_ATOMIC);
> spin_unlock(&vm->idr_lock);
>
> if (handle < 0) {
>
>
>
Ah, nice catch!
Oded, any objection to me taking this patch?
greg k-h
