korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-15 16:24:13 +08:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'iommu/amd/amd-vi' into iommu/next

Browse Source 
* iommu/amd/amd-vi:
  iommu/amd: Use try_cmpxchg64() in v2_alloc_pte()
This commit is contained in:
Will Deacon 2024-07-12 16:53:39 +01:00
commit 5012650a15
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/io_pgtable_v2.c
View File

@ -158,7 +158,7 @@ static u64 *v2_alloc_pte(int nid, u64 *pgd, unsigned long iova,
__npte = set_pgtable_attr(page);
/* pte could have been changed somewhere. */
if (cmpxchg64(pte, __pte, __npte) != __pte)
if (!try_cmpxchg64(pte, &__pte, __npte))
iommu_free_page(page);
else if (IOMMU_PTE_PRESENT(__pte))
*updated = true;