From: Manjunath Patil <manjunath.b.pa...@oracle.com> Date: Fri, 2 Oct 2020 13:05:45 -0700
> RDS/IB tries to refill the recv buffer in softirq context using > GFP_NOWAIT flag. However alloc failure is handled by queueing a work to > refill the recv buffer with GFP_KERNEL flag. This means failure to > allocate with GFP_NOWAIT isn't fatal. Do not print the PAF warnings if > softirq context fails to refill the recv buffer, instead print rate > limited warnings. > > Signed-off-by: Manjunath Patil <manjunath.b.pa...@oracle.com> > Reviewed-by: Aruna Ramakrishna <aruna.ramakris...@oracle.com> Honestly I don't think the subsystem should print any warning at all. Either it's a softirq failure, and that's ok because you will push the allocation to GFP_KERNEL via a work job. Or it's a GFP_KERNEL failure in non-softirq context and the kernel will print a warning and a stack backtrace from the memory allocator. Therefore, please remove all of the warnings in the rds code. Thanks.
