diff options
Diffstat (limited to 'debian/patches-rt/block-mq-don-t-complete-requests-via-IPI.patch')
| -rw-r--r-- | debian/patches-rt/block-mq-don-t-complete-requests-via-IPI.patch | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/debian/patches-rt/block-mq-don-t-complete-requests-via-IPI.patch b/debian/patches-rt/block-mq-don-t-complete-requests-via-IPI.patch index da39325ce..93e02438d 100644 --- a/debian/patches-rt/block-mq-don-t-complete-requests-via-IPI.patch +++ b/debian/patches-rt/block-mq-don-t-complete-requests-via-IPI.patch @@ -1,7 +1,7 @@ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Thu, 29 Jan 2015 15:10:08 +0100 Subject: block/mq: don't complete requests via IPI -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.2/older/patches-5.2.17-rt9.tar.xz +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.4/older/patches-5.4.3-rt1.tar.xz The IPI runs in hardirq context and there are sleeping locks. Assume caches are shared and complete them on the local CPU. @@ -13,7 +13,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> --- a/block/blk-mq.c +++ b/block/blk-mq.c -@@ -605,8 +605,16 @@ static void __blk_mq_complete_request(st +@@ -612,8 +612,16 @@ static void __blk_mq_complete_request(st } cpu = get_cpu_light(); @@ -21,7 +21,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> + * Avoid SMP function calls for completions because they acquire + * sleeping spinlocks on RT. + */ -+#ifdef CONFIG_PREEMPT_RT_FULL ++#ifdef CONFIG_PREEMPT_RT + shared = true; +#else if (!test_bit(QUEUE_FLAG_SAME_FORCE, &q->queue_flags)) |