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authorMatthew Wilcox <matthew.r.wilcox@intel.com>2011-03-16 16:45:49 -0400
committerMatthew Wilcox <matthew.r.wilcox@intel.com>2011-11-04 15:53:00 -0400
commit3cb967c03926edd2c414082f4cc0feb7b372edae (patch)
treebb754d4758929d05e161dcafdab2d914b4361c60 /drivers/block/nvme.c
parent7523d834dd1573610078eb1ac0933f6490232f90 (diff)
NVMe: Remove the kthread from the wait queue
Once there are no more bios on the congestion list, we can stop waking up the nvme kthread every time a completion happens. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Diffstat (limited to 'drivers/block/nvme.c')
-rw-r--r--drivers/block/nvme.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c
index cf89db8c41e..8d3c0b79ac2 100644
--- a/drivers/block/nvme.c
+++ b/drivers/block/nvme.c
@@ -1162,6 +1162,9 @@ static void nvme_resubmit_bios(struct nvme_queue *nvmeq)
bio_list_add_head(&nvmeq->sq_cong, bio);
break;
}
+ if (bio_list_empty(&nvmeq->sq_cong))
+ remove_wait_queue(&nvmeq->sq_full,
+ &nvmeq->sq_cong_wait);
}
}