[dm-devel] [PATCH 3/6] dm thin: add cond_resched() to various workqueue loops

[Mike Snitzer]

Otherwise on resource constrained systems these workqueues may be too
greedy.

Signed-off-by: Mike Snitzer <snit...@kernel.org>
---
 drivers/md/dm-thin.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index affd91a53042..6cd105c1cef3 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2209,6 +2209,7 @@ static void process_thin_deferred_bios(struct thin_c *tc)
                        throttle_work_update(&pool->throttle);
                        dm_pool_issue_prefetches(pool->pmd);
                }
+               cond_resched();
        }
        blk_finish_plug(&plug);
 }
@@ -2291,6 +2292,7 @@ static void process_thin_deferred_cells(struct thin_c *tc)
                        else
                                pool->process_cell(tc, cell);
                }
+               cond_resched();
        } while (!list_empty(&cells));
 }
 
-- 
2.37.0 (Apple Git-136)

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