linux/fs/fuse/dax.c
Vivek Goyal 1dd539577c virtiofs: add a mount option to enable dax
Add a mount option to allow using dax with virtio_fs.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-09-10 11:39:22 +02:00

37 lines
553 B
C

// SPDX-License-Identifier: GPL-2.0
/*
* dax: direct host memory access
* Copyright (C) 2020 Red Hat, Inc.
*/
#include "fuse_i.h"
#include <linux/dax.h>
struct fuse_conn_dax {
/* DAX device */
struct dax_device *dev;
};
void fuse_dax_conn_free(struct fuse_conn *fc)
{
kfree(fc->dax);
}
int fuse_dax_conn_alloc(struct fuse_conn *fc, struct dax_device *dax_dev)
{
struct fuse_conn_dax *fcd;
if (!dax_dev)
return 0;
fcd = kzalloc(sizeof(*fcd), GFP_KERNEL);
if (!fcd)
return -ENOMEM;
fcd->dev = dax_dev;
fc->dax = fcd;
return 0;
}