diff options
| author | Liam R. Howlett <[email protected]> | 2022-09-06 19:48:51 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2022-09-26 19:46:18 -0700 |
| commit | d7c62295570f012e1d386ae6ed472b36baf037ad (patch) | |
| tree | 0120999a1a7b8e9ee1283ac7b075b8e2409fcdf1 | |
| parent | 7964cf8caa4dfa42c4149f3833d3878713cda3dc (diff) | |
mm: convert vma_lookup() to use mtree_load()
Unlike the rbtree, the Maple Tree will return a NULL if there's nothing at
a particular address.
Since the previous commit dropped the vmacache, it is now possible to
consult the tree directly.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Liam R. Howlett <[email protected]>
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Acked-by: Vlastimil Babka <[email protected]>
Tested-by: Yu Zhao <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: David Howells <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: SeongJae Park <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
| -rw-r--r-- | include/linux/mm.h | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 06a6b8db75b7..49a58807719b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2795,12 +2795,7 @@ struct vm_area_struct *find_vma_intersection(struct mm_struct *mm, static inline struct vm_area_struct *vma_lookup(struct mm_struct *mm, unsigned long addr) { - struct vm_area_struct *vma = find_vma(mm, addr); - - if (vma && addr < vma->vm_start) - vma = NULL; - - return vma; + return mtree_load(&mm->mm_mt, addr); } static inline unsigned long vm_start_gap(struct vm_area_struct *vma) |