| From bbee43f75fdd61fe74c94ae7a15791ad33e4bd50 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Mon, 29 Nov 2021 19:00:43 +0900 |
| Subject: loop: Use pr_warn_once() for loop_control_remove() warning |
| |
| From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> |
| |
| [ Upstream commit e3f9387aea67742b9d1f4de8e5bb2fd08a8a4584 ] |
| |
| kernel test robot reported that RCU stall via printk() flooding is |
| possible [1] when stress testing. |
| |
| Link: https://lkml.kernel.org/r/20211129073709.GA18483@xsang-OptiPlex-9020 [1] |
| Reported-by: kernel test robot <oliver.sang@intel.com> |
| Reviewed-by: Christoph Hellwig <hch@lst.de> |
| Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> |
| Signed-off-by: Jens Axboe <axboe@kernel.dk> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/block/loop.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/drivers/block/loop.c b/drivers/block/loop.c |
| index dfc72a1f6500d..c00ae30fde89e 100644 |
| --- a/drivers/block/loop.c |
| +++ b/drivers/block/loop.c |
| @@ -2429,7 +2429,7 @@ static int loop_control_remove(int idx) |
| int ret; |
| |
| if (idx < 0) { |
| - pr_warn("deleting an unspecified loop device is not supported.\n"); |
| + pr_warn_once("deleting an unspecified loop device is not supported.\n"); |
| return -EINVAL; |
| } |
| |
| -- |
| 2.33.0 |
| |