[PATCH v3 04/13] dax: stop using VM_HUGEPAGE for dax

From: Dan Williams
Date: Thu Oct 19 2017 - 22:48:41 EST


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: Jeff Moyer <jmoyer@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
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 c419c6fdb769..c6780743f8ec 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -1133,8 +1133,6 @@ 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;
}