Thread (16 messages) 16 messages, 3 authors, 2015-07-21
STALE4002d
Revisions (5)
  1. v3 [diff vs current]
  2. v1 [diff vs current]
  3. v2 [diff vs current]
  4. v3 current
  5. v4 [diff vs current]

[PATCH v3 10/10] mm: madvise allow remove operation for hugetlbfs

From: Mike Kravetz <hidden>
Date: 2015-07-13 04:22:27
Also in: linux-mm, lkml
Subsystem: memory management, memory mapping - madvise (memory advice), the rest · Maintainers: Andrew Morton, Liam R. Howlett, Lorenzo Stoakes, David Hildenbrand, Linus Torvalds

Now that we have hole punching support for hugetlbfs, we can
also support the MADV_REMOVE interface to it.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Mike Kravetz <redacted>
---
 mm/madvise.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/madvise.c b/mm/madvise.c
index 70ce0d4..a235367 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -468,7 +468,7 @@ static long madvise_remove(struct vm_area_struct *vma,
 
 	*prev = NULL;	/* tell sys_madvise we drop mmap_sem */
 
-	if (vma->vm_flags & (VM_LOCKED | VM_HUGETLB))
+	if (vma->vm_flags & VM_LOCKED)
 		return -EINVAL;
 
 	f = vma->vm_file;
-- 
2.1.0

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