[PATCH v2 4/4] dax: stop using VM_HUGEPAGE for dax

[Dan Williams <dan.j.williams@xxxxxxxxx>]

This flag is deprecated in favor of the vma_is_dax() check in
transparent_hugepage_enabled() added in commit baabda261424 "mm: always
enable thp for dax mappings"

Cc: Jan Kara <jack@xxxxxxx>
Cc: Jeff Moyer <jmoyer@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
---
 drivers/dax/device.c |    1 -
 fs/ext4/file.c       |    1 -
 fs/xfs/xfs_file.c    |    2 --
 3 files changed, 4 deletions(-)

diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index ed79d006026e..74a35eb5e6d3 100644
--- a/drivers/dax/device.c
+++ b/drivers/dax/device.c
@@ -450,7 +450,6 @@ static int dax_mmap(struct file *filp, struct vm_area_struct *vma)
 		return rc;
 
 	vma->vm_ops = &dax_vm_ops;
-	vma->vm_flags |= VM_HUGEPAGE;
 	return 0;
 }
 
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 0cc9d205bd96..a54e1b4c49f9 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -352,7 +352,6 @@ static int ext4_file_mmap(struct file *file, struct vm_area_struct *vma)
 	file_accessed(file);
 	if (IS_DAX(file_inode(file))) {
 		vma->vm_ops = &ext4_dax_vm_ops;
-		vma->vm_flags |= VM_HUGEPAGE;
 	} else {
 		vma->vm_ops = &ext4_file_vm_ops;
 	}
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index dece8fe937f5..c0e0fcbe1bd3 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -1130,8 +1130,6 @@ xfs_file_mmap(
 {
 	file_accessed(filp);
 	vma->vm_ops = &xfs_file_vm_ops;
-	if (IS_DAX(file_inode(filp)))
-		vma->vm_flags |= VM_HUGEPAGE;
 	return 0;
 }