tree 3869740b69b49283913409a14ffb2e9a92b88909
parent d422f40163087408b56290156ba233fc5ada53e4
author Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> 1638180043 +0900
committer Jens Axboe <axboe@kernel.dk> 1638193485 -0700

loop: Use pr_warn_once() for loop_control_remove() warning

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>