From: Jens Axboe axboe@kernel.dk
[ Upstream commit 87959fa16cfbcf76245c11559db1940069621274 ]
This reverts commit cb2ac2912a9ca7d3d26291c511939a41361d2d83.
Alex and the kernel test robot report that this causes a significant performance regression with BFQ. I can reproduce that result, so let's revert this one as we're close to -rc6 and we there's no point in trying to rush a fix.
Link: https://lore.kernel.org/linux-block/1639853092.524jxfaem2.none@localhost/ Link: https://lore.kernel.org/lkml/20211219141852.GH14057@xsang-OptiPlex-9020/ Reported-by: Alex Xu (Hello71) alex_y_xu@yahoo.ca Reported-by: kernel test robot oliver.sang@intel.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- block/blk-core.c | 2 -- 1 file changed, 2 deletions(-)
diff --git a/block/blk-core.c b/block/blk-core.c index 4f4e286198660..26664f2a139eb 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1657,8 +1657,6 @@ EXPORT_SYMBOL(kblockd_schedule_work); int kblockd_mod_delayed_work_on(int cpu, struct delayed_work *dwork, unsigned long delay) { - if (!delay) - return queue_work_on(cpu, kblockd_workqueue, &dwork->work); return mod_delayed_work_on(cpu, kblockd_workqueue, dwork, delay); } EXPORT_SYMBOL(kblockd_mod_delayed_work_on);