iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

iommu/amd: Pass gfp flags to iommu_map_page() in amd_iommu_map()

Browse Source 
commit 3057fb9377eb5e73386dd0d8804bf72bdd23e391 upstream.

A recent commit added a gfp parameter to amd_iommu_map() to make it
callable from atomic context, but forgot to pass it down to
iommu_map_page() and left GFP_KERNEL there. This caused
sleep-while-atomic warnings and needs to be fixed.

Reported-by: Qian Cai <cai@lca.pw>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 781ca2de89ba ("iommu: Add gfp parameter to iommu_ops::map")
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Joerg Roedel 2019-10-18 11:00:33 +02:00 committed by Greg Kroah-Hartman
parent 7519069f1f
commit 8b47e324af
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iommu/amd_iommu.c
View File

@ -3114,7 +3114,7 @@ static int amd_iommu_map(struct iommu_domain *dom, unsigned long iova,
prot |= IOMMU_PROT_IW;
mutex_lock(&domain->api_lock);
ret = iommu_map_page(domain, iova, paddr, page_size, prot, GFP_KERNEL);
ret = iommu_map_page(domain, iova, paddr, page_size, prot, gfp);
mutex_unlock(&domain->api_lock);
domain_flush_np_cache(domain, iova, page_size);