diff options
| author | Fenghua Yu <fenghua.yu@intel.com> | 2020-09-15 19:30:11 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-09-17 21:22:15 +0300 |
| commit | 52ad9bc64c74167466e70e0df4b99ee5ccef0078 (patch) | |
| tree | 407db74ea1e0bb53a9ead1a3ff3b929fd673838d /include/linux/mm_types.h | |
| parent | f0f2f9feb4ee6f28729e5388da3c03ce1dac077a (diff) | |
| download | linux-52ad9bc64c74167466e70e0df4b99ee5ccef0078.tar.xz | |
mm: Add a pasid member to struct mm_struct
A PASID is shared by all threads in a process. So the logical place to
keep track of it is in the mm_struct. Both ARM and x86 would use this
PASID.
[ bp: Massage commit message. ]
Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/1600187413-163670-8-git-send-email-fenghua.yu@intel.com
Diffstat (limited to 'include/linux/mm_types.h')
| -rw-r--r-- | include/linux/mm_types.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 496c3ff97cce..1ff0615ef19f 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -542,6 +542,10 @@ struct mm_struct { atomic_long_t hugetlb_usage; #endif struct work_struct async_put_work; + +#ifdef CONFIG_IOMMU_SUPPORT + u32 pasid; +#endif } __randomize_layout; /* |