[PATCH 3/7] block: Fix get_task_ioprio() default return value

From: Damien Le Moal <damien.lemoal@wdc.com>
To: linux-block@vger.kernel.org, Jens Axboe <axboe@kernel.dk>
Cc: Adam Manzanares <adam.manzanares@wdc.com>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	linux-fsdevel@vger.kernel.org
Subject: [PATCH 3/7] block: Fix get_task_ioprio() default return value
Date: Mon, 19 Nov 2018 12:51:27 +0900	[thread overview]
Message-ID: <20181119035131.11255-4-damien.lemoal@wdc.com> (raw)
In-Reply-To: <20181119035131.11255-1-damien.lemoal@wdc.com>

As explained in ioprio_get() and ionice man pages, the default I/O
priority class for processes which have not set an I/O priority using
ioprio_set() is IOPRIO_CLASS_BE and not IOPRIO_CLASS_NONE.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
---
 block/ioprio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/ioprio.c b/block/ioprio.c
index f9821080c92c..ea5be206eb26 100644
--- a/block/ioprio.c
+++ b/block/ioprio.c
@@ -163,7 +163,7 @@ static int get_task_ioprio(struct task_struct *p)
 	ret = security_task_getioprio(p);
 	if (ret)
 		goto out;
-	ret = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, IOPRIO_NORM);
+	ret = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, IOPRIO_NORM);
 	task_lock(p);
 	if (p->io_context)
 		ret = p->io_context->ioprio;
-- 
2.19.1

