On Fri 2019-11-22 11:26:30, Greg Kroah-Hartman wrote:
From: Trond Myklebust trond.myklebust@hammerspace.com
[ Upstream commit f42f7c283078ce3c1e8368b140e270755b1ae313 ]
Fix up the priority queue to not batch by owner, but by queue, so that we allow '1 << priority' elements to be dequeued before switching to the next priority queue. The owner field is still used to wake up requests in round robin order by owner to avoid single processes hogging the RPC layer by loading the queues.
include/linux/sunrpc/sched.h | 2 - net/sunrpc/sched.c | 109 +++++++++++++++++------------------ 2 files changed, 54 insertions(+), 57 deletions(-)
While this might improve things, it is not fixing a serious bug.
Plus, it is over limit for stable.
Best regards, Pavel