The patch titled
Subject: mm: export find_extend_vma() and handle_mm_fault() for driver use
has been added to the -mm tree. Its filename is
mm-export-find_extend_vma-and-handle_mm_fault-for-driver-use.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-export-find_extend_vma-and-handle_mm_fault-for-driver-use.patch
echo and later at
echo http://ozlabs.org/~akpm/mmotm/broken-out/mm-export-find_extend_vma-and-handle_mm_fault-for-driver-use.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
Subject: mm: export find_extend_vma() and handle_mm_fault() for driver use
This lets drivers like the AMD IOMMUv2 driver handle faults a bit more
simply, rather than doing tricks with page refs and get_user_pages().
Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
Cc: Oded Gabbay <oded.gabbay@xxxxxxx>
Cc: Joerg Roedel <jroedel@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory.c | 1 +
mm/mmap.c | 2 ++
2 files changed, 3 insertions(+)
diff -puN mm/memory.c~mm-export-find_extend_vma-and-handle_mm_fault-for-driver-use mm/memory.c
--- a/mm/memory.c~mm-export-find_extend_vma-and-handle_mm_fault-for-driver-use
+++ a/mm/memory.c
@@ -3380,6 +3380,7 @@ int handle_mm_fault(struct mm_struct *mm
return ret;
}
+EXPORT_SYMBOL_GPL(handle_mm_fault);
#ifndef __PAGETABLE_PUD_FOLDED
/*
diff -puN mm/mmap.c~mm-export-find_extend_vma-and-handle_mm_fault-for-driver-use mm/mmap.c
--- a/mm/mmap.c~mm-export-find_extend_vma-and-handle_mm_fault-for-driver-use
+++ a/mm/mmap.c
@@ -2359,6 +2359,8 @@ find_extend_vma(struct mm_struct *mm, un
}
#endif
+EXPORT_SYMBOL_GPL(find_extend_vma);
+
/*
* Ok - we have the memory areas we should free on the vma list,
* so release them, and do the vma updates.
_
Patches currently in -mm which might be from jbarnes@xxxxxxxxxxxxxxxx are
mmu_notifier-add-mmu_notifier_invalidate_range.patch
mmu_notifier-call-mmu_notifier_invalidate_range-from-vmm.patch
mmu_notifier-add-the-call-back-for-mmu_notifier_invalidate_range.patch
iommu-amd-use-new-invalidate_range-mmu-notifier.patch
mm-export-find_extend_vma-and-handle_mm_fault-for-driver-use.patch
iommu-amd-use-handle_mm_fault-directly-v2.patch
linux-next.patch
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