| commit | c41108049d143304faf06852c7181262b7b0d242 | [log] [tgz] |
|---|---|---|
| author | Christoph Hellwig <hch@lst.de> | Tue Oct 12 11:33:01 2021 +0200 |
| committer | Jens Axboe <axboe@kernel.dk> | Fri Oct 15 21:02:57 2021 -0600 |
| tree | a6212c9aa366bbe05466a237f79e1f57f4b3346a | |
| parent | aec89dc5d421200b353d99a2bfff9e0967f67037 [diff] |
kyber: avoid q->disk dereferences in trace points q->disk becomes invalid after the gendisk is removed. Work around this by caching the dev_t for the tracepoints. The real fix would be to properly tear down the I/O schedulers with the gendisk, but that is a much more invasive change. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20211012093301.GA27795@lst.de Tested-by: Yi Zhang <yi.zhang@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>