diff options
| author | Sagi Grimberg | 2018-11-02 19:22:13 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2018-11-27 16:13:05 +0100 |
| commit | fa4712942d8ee992af92aee78d6c07c6c5cbfb42 (patch) | |
| tree | a10f68a470526e54d9627c5e901ed4f4180e17fd /drivers/nvme/host/core.c | |
| parent | of/device: Really only set bus DMA mask when appropriate (diff) | |
| download | kernel-qcow2-linux-fa4712942d8ee992af92aee78d6c07c6c5cbfb42.tar.gz kernel-qcow2-linux-fa4712942d8ee992af92aee78d6c07c6c5cbfb42.tar.xz kernel-qcow2-linux-fa4712942d8ee992af92aee78d6c07c6c5cbfb42.zip | |
nvme: make sure ns head inherits underlying device limits
[ Upstream commit 8f676b8508c250bbe255096522fdefb73f1ea0b9 ]
Whenever we update ns_head info, we need to make sure it is still
compatible with all underlying backing devices because although nvme
multipath doesn't have any explicit use of these limits, other devices
can still be stacked on top of it which may rely on the underlying limits.
Start with unlimited stacking limits, and every info update iterate over
siblings and adjust queue limits.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/nvme/host/core.c')
| -rw-r--r-- | drivers/nvme/host/core.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 6bb9908bf46f..0ba301f7e8b4 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1519,8 +1519,10 @@ static void __nvme_revalidate_disk(struct gendisk *disk, struct nvme_id_ns *id) if (ns->ndev) nvme_nvm_update_nvm_info(ns); #ifdef CONFIG_NVME_MULTIPATH - if (ns->head->disk) + if (ns->head->disk) { nvme_update_disk_info(ns->head->disk, ns, id); + blk_queue_stack_limits(ns->head->disk->queue, ns->queue); + } #endif } |