From a6e8dc46ff0b7defbfa4f29a71aee263377ec573 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 3 Jan 2011 15:01:48 +0100 Subject: [PATCH] bio-integrity: mark kintegrityd_wq highpri and CPU intensive Work items processed by kintegrityd_wq won't block much, may burn a lot of CPU cycles and affect IO latency. Use alloc_workqueue() to mark it highpri and CPU intensive with max concurrency of 1. Signed-off-by: Tejun Heo Cc: Martin K. Petersen Signed-off-by: Jens Axboe --- fs/bio-integrity.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c index 4d0ff5ee27b8..e49cce234c65 100644 --- a/fs/bio-integrity.c +++ b/fs/bio-integrity.c @@ -782,7 +782,12 @@ void __init bio_integrity_init(void) { unsigned int i; - kintegrityd_wq = create_workqueue("kintegrityd"); + /* + * kintegrityd won't block much but may burn a lot of CPU cycles. + * Make it highpri CPU intensive wq with max concurrency of 1. + */ + kintegrityd_wq = alloc_workqueue("kintegrityd", WQ_MEM_RECLAIM | + WQ_HIGHPRI | WQ_CPU_INTENSIVE, 1); if (!kintegrityd_wq) panic("Failed to create kintegrityd\n");