diff options
| author | Joe Lawrence <[email protected]> | 2014-10-05 13:24:21 -0400 |
|---|---|---|
| committer | Paul E. McKenney <[email protected]> | 2014-10-06 05:57:43 -0700 |
| commit | 789cbbeca4eb7141cbd748ee93772471101b507b (patch) | |
| tree | 357a38595c99840947212b6ec89a7a6d4ada2aee /net/lapb/lapb_subr.c | |
| parent | c98fed9fc6a7449affd941d8a8e9fcb0c72977d6 (diff) | |
workqueue: Add quiescent state between work items
Similar to the stop_machine deadlock scenario on !PREEMPT kernels
addressed in b22ce2785d97 "workqueue: cond_resched() after processing
each work item", kworker threads requeueing back-to-back with zero jiffy
delay can stall RCU. The cond_resched call introduced in that fix will
yield only iff there are other higher priority tasks to run, so force a
quiescent RCU state between work items.
Signed-off-by: Joe Lawrence <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Fixes: b22ce2785d97 ("workqueue: cond_resched() after processing each work item")
Cc: <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
Diffstat (limited to 'net/lapb/lapb_subr.c')
0 files changed, 0 insertions, 0 deletions