diff options
Diffstat (limited to 'drivers/dax')
| -rw-r--r-- | drivers/dax/device.c | 2 | ||||
| -rw-r--r-- | drivers/dax/super.c | 8 |
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/dax/device.c b/drivers/dax/device.c index 108c37fca782..0a2acd7993f0 100644 --- a/drivers/dax/device.c +++ b/drivers/dax/device.c @@ -474,7 +474,7 @@ static int dax_mmap(struct file *filp, struct vm_area_struct *vma) return rc; vma->vm_ops = &dax_vm_ops; - vma->vm_flags |= VM_MIXEDMAP | VM_HUGEPAGE; + vma->vm_flags |= VM_HUGEPAGE; return 0; } diff --git a/drivers/dax/super.c b/drivers/dax/super.c index c2f42b1f3363..6e928f37d084 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -86,6 +86,7 @@ bool __bdev_dax_supported(struct block_device *bdev, int blocksize) { struct dax_device *dax_dev; bool dax_enabled = false; + struct request_queue *q; pgoff_t pgoff; int err, id; pfn_t pfn; @@ -98,6 +99,13 @@ bool __bdev_dax_supported(struct block_device *bdev, int blocksize) return false; } + q = bdev_get_queue(bdev); + if (!q || !blk_queue_dax(q)) { + pr_debug("%s: error: request queue doesn't support dax\n", + bdevname(bdev, buf)); + return false; + } + err = bdev_dax_pgoff(bdev, 0, PAGE_SIZE, &pgoff); if (err) { pr_debug("%s: error: unaligned partition for dax\n", |