Re: [PATCH] drivers/scsi/csiostor: do not sleep with a spin lock held

[Damien Le Moal]

On 1/19/22 17:57, cgel.zte@xxxxxxxxx wrote:
> 
> The might_sleep_if(gfp_mask & __GFP_DIRECT_RECLAIM) in the 
> mempool_alloc function uses __GFP_DIRECT_RECLAIM.

But the call to mempool_alloc() specifies GFP_ATOMIC, which does not
have __GFP_DIRECT_RECLAIM, so "gfp_mask & __GFP_DIRECT_RECLAIM" should
be false, and the might_sleep_if() not triggering. How can you see the
might sleep warning ?

-- 
Damien Le Moal
Western Digital Research