The patch titled
Subject: dax: stop using VM_HUGEPAGE for dax
has been added to the -mm tree. Its filename is
dax-stop-using-vm_hugepage-for-dax.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/dax-stop-using-vm_hugepage-for-dax.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/dax-stop-using-vm_hugepage-for-dax.patch
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------------------------------------------------------
From: Dan Williams <dan.j.williams@xxxxxxxxx>
Subject: dax: stop using VM_HUGEPAGE for dax
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"
Link: http://lkml.kernel.org/r/150664808322.36094.377701515526275078.stgit@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Cc: Jeff Moyer <jmoyer@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/dax/device.c | 1 -
fs/ext4/file.c | 1 -
fs/xfs/xfs_file.c | 2 --
3 files changed, 4 deletions(-)
diff -puN drivers/dax/device.c~dax-stop-using-vm_hugepage-for-dax drivers/dax/device.c
--- a/drivers/dax/device.c~dax-stop-using-vm_hugepage-for-dax
+++ a/drivers/dax/device.c
@@ -450,7 +450,6 @@ static int dax_mmap(struct file *filp, s
return rc;
vma->vm_ops = &dax_vm_ops;
- vma->vm_flags |= VM_HUGEPAGE;
return 0;
}
diff -puN fs/ext4/file.c~dax-stop-using-vm_hugepage-for-dax fs/ext4/file.c
--- a/fs/ext4/file.c~dax-stop-using-vm_hugepage-for-dax
+++ a/fs/ext4/file.c
@@ -352,7 +352,6 @@ static int ext4_file_mmap(struct file *f
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 -puN fs/xfs/xfs_file.c~dax-stop-using-vm_hugepage-for-dax fs/xfs/xfs_file.c
--- a/fs/xfs/xfs_file.c~dax-stop-using-vm_hugepage-for-dax
+++ a/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;
}
_
Patches currently in -mm which might be from dan.j.williams@xxxxxxxxx are
dax-quiet-bdev_dax_supported.patch
dax-disable-filesystem-dax-on-devices-that-do-not-map-pages.patch
dax-stop-using-vm_mixedmap-for-dax.patch
dax-stop-using-vm_hugepage-for-dax.patch
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