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RDMA/usnic: use iommu_map_atomic() under spin_lock()
[ Upstream commitb7e08a5a63
] 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:e3cf00d0a8
("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> Signed-off-by: Sasha Levin <sashal@kernel.org>
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parent
360682fe7d
commit
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1 changed files with 4 additions and 4 deletions
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@ -277,8 +277,8 @@ static int usnic_uiom_map_sorted_intervals(struct list_head *intervals,
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size = pa_end - pa_start + PAGE_SIZE;
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usnic_dbg("va 0x%lx pa %pa size 0x%zx flags 0x%x",
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va_start, &pa_start, size, flags);
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err = iommu_map(pd->domain, va_start, pa_start,
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size, flags);
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err = iommu_map_atomic(pd->domain, va_start,
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pa_start, size, flags);
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if (err) {
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usnic_err("Failed to map va 0x%lx pa %pa size 0x%zx with err %d\n",
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va_start, &pa_start, size, err);
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@ -294,8 +294,8 @@ static int usnic_uiom_map_sorted_intervals(struct list_head *intervals,
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size = pa - pa_start + PAGE_SIZE;
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usnic_dbg("va 0x%lx pa %pa size 0x%zx flags 0x%x\n",
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va_start, &pa_start, size, flags);
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err = iommu_map(pd->domain, va_start, pa_start,
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size, flags);
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err = iommu_map_atomic(pd->domain, va_start,
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pa_start, size, flags);
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if (err) {
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usnic_err("Failed to map va 0x%lx pa %pa size 0x%zx with err %d\n",
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va_start, &pa_start, size, err);
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