Re: [PATCH] virtio_console: Fix alloc_buf(.gfp) usage

[Greg Kroah-Hartman]

On Fri, Aug 28, 2026 at 05:37:06PM +0200, Peter Zijlstra wrote:
> 
> Commit fc220d6be3c7 ("virtio_console: refactor __send_to_port() buffer
> ownership") added a .gfp argument to alloc_buf(), but forgot to convert
> all allocation calls.
> 
> The result is that any GFP_ATOMIC calls, such as those from:
> 
>   hvc_console_print()
>     put_chars()
>       alloc_buf(.gfp = GFP_ATOMIC)
> 
> will trip the might_sleep_if() check when used from an atomic context.
> 
> Fixes: fc220d6be3c7 ("virtio_console: refactor __send_to_port() buffer
> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
> ---
> 

Sorry for the delay, I took this earlier patch instead:
	https://lore.kernel.org/r/20260810-serial-v1-1-abbe51602c13@xxxxxxxxxx