[RFC PATCH 4/4] mm: madvise allow remove operation for hugetlbfs

Mike Kravetz
2015-04-16T23:04:17Z

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 <mike.kravetz@oracle.com>
---
mm/madvise.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/madvise.c b/mm/madvise.c
index d551475..c4a1027 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -299,7 +299,7 @@ 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