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| author | Yang Yingliang <yangyingliang@huawei.com> | 2023-01-29 17:37:57 +0800 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2023-01-30 11:38:41 +0200 |
| commit | b7e08a5a63a11627601915473c3b569c1f6c6c06 (patch) | |
| tree | e5c9a280abec860214e5539e4484b2ef7e903f6c | |
| parent | 5d9745cead1f121974322b94ceadfb4d1e67960e (diff) | |
| download | lwn-b7e08a5a63a11627601915473c3b569c1f6c6c06.tar.gz lwn-b7e08a5a63a11627601915473c3b569c1f6c6c06.zip | |
RDMA/usnic: use iommu_map_atomic() under spin_lock()
usnic_uiom_map_sorted_intervals() is called under spin_lock(), iommu_map()
might sleep, use iommu_map_atomic() to avoid potential sleep in atomic
context.
Fixes: e3cf00d0a87f ("IB/usnic: Add Cisco VIC low-level hardware driver")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20230129093757.637354-1-yangyingliang@huawei.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
| -rw-r--r-- | drivers/infiniband/hw/usnic/usnic_uiom.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c index c301b3be9f30..a2857accc427 100644 --- a/drivers/infiniband/hw/usnic/usnic_uiom.c +++ b/drivers/infiniband/hw/usnic/usnic_uiom.c @@ -276,8 +276,8 @@ iter_chunk: size = pa_end - pa_start + PAGE_SIZE; usnic_dbg("va 0x%lx pa %pa size 0x%zx flags 0x%x", va_start, &pa_start, size, flags); - err = iommu_map(pd->domain, va_start, pa_start, - size, flags); + err = iommu_map_atomic(pd->domain, va_start, + pa_start, size, flags); if (err) { usnic_err("Failed to map va 0x%lx pa %pa size 0x%zx with err %d\n", va_start, &pa_start, size, err); @@ -293,8 +293,8 @@ iter_chunk: size = pa - pa_start + PAGE_SIZE; usnic_dbg("va 0x%lx pa %pa size 0x%zx flags 0x%x\n", va_start, &pa_start, size, flags); - err = iommu_map(pd->domain, va_start, pa_start, - size, flags); + err = iommu_map_atomic(pd->domain, va_start, + pa_start, size, flags); if (err) { usnic_err("Failed to map va 0x%lx pa %pa size 0x%zx with err %d\n", va_start, &pa_start, size, err); |