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authorJason Gunthorpe <jgg@nvidia.com>2024-11-12 13:47:28 -0400
committerJason Gunthorpe <jgg@nvidia.com>2024-11-12 13:47:28 -0400
commit4e6bd13aa33c78346973f01c7303b4909d79ec86 (patch)
tree6205937f65a4d859dcecaf48da8801a1e4103ce7 /include/linux/sched/mm.h
parentb047c0644f4e0aafd202e9519a22e17651fbee70 (diff)
parentf6681abd413919472d8a142420b639a3a8d84673 (diff)
Merge branch 'iommufd/arm-smmuv3-nested' of iommu/linux into iommufd for-next
Common SMMUv3 patches for the following patches adding nesting, shared branch with the iommu tree. * 'iommufd/arm-smmuv3-nested' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/iommu/linux: iommu/arm-smmu-v3: Expose the arm_smmu_attach interface iommu/arm-smmu-v3: Implement IOMMU_HWPT_ALLOC_NEST_PARENT iommu/arm-smmu-v3: Support IOMMU_GET_HW_INFO via struct arm_smmu_hw_info iommu/arm-smmu-v3: Report IOMMU_CAP_ENFORCE_CACHE_COHERENCY for CANWBS ACPI/IORT: Support CANWBS memory access flag ACPICA: IORT: Update for revision E.f vfio: Remove VFIO_TYPE1_NESTING_IOMMU ... Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include/linux/sched/mm.h')
-rw-r--r--include/linux/sched/mm.h17
1 files changed, 4 insertions, 13 deletions
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index 07bb8d4181d7..928a626725e6 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -251,25 +251,16 @@ static inline gfp_t current_gfp_context(gfp_t flags)
{
unsigned int pflags = READ_ONCE(current->flags);
- if (unlikely(pflags & (PF_MEMALLOC_NOIO |
- PF_MEMALLOC_NOFS |
- PF_MEMALLOC_NORECLAIM |
- PF_MEMALLOC_NOWARN |
- PF_MEMALLOC_PIN))) {
+ if (unlikely(pflags & (PF_MEMALLOC_NOIO | PF_MEMALLOC_NOFS | PF_MEMALLOC_PIN))) {
/*
- * Stronger flags before weaker flags:
- * NORECLAIM implies NOIO, which in turn implies NOFS
+ * NOIO implies both NOIO and NOFS and it is a weaker context
+ * so always make sure it makes precedence
*/
- if (pflags & PF_MEMALLOC_NORECLAIM)
- flags &= ~__GFP_DIRECT_RECLAIM;
- else if (pflags & PF_MEMALLOC_NOIO)
+ if (pflags & PF_MEMALLOC_NOIO)
flags &= ~(__GFP_IO | __GFP_FS);
else if (pflags & PF_MEMALLOC_NOFS)
flags &= ~__GFP_FS;
- if (pflags & PF_MEMALLOC_NOWARN)
- flags |= __GFP_NOWARN;
-
if (pflags & PF_MEMALLOC_PIN)
flags &= ~__GFP_MOVABLE;
}