diff options
Diffstat (limited to 'fs/fuse/virtio_fs.c')
| -rw-r--r-- | fs/fuse/virtio_fs.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c index 4cfa4bc1f579..e54dc069587d 100644 --- a/fs/fuse/virtio_fs.c +++ b/fs/fuse/virtio_fs.c @@ -88,12 +88,21 @@ struct virtio_fs_req_work { static int virtio_fs_enqueue_req(struct virtio_fs_vq *fsvq, struct fuse_req *req, bool in_flight); +static const struct constant_table dax_param_enums[] = { + {"always", FUSE_DAX_ALWAYS }, + {"never", FUSE_DAX_NEVER }, + {"inode", FUSE_DAX_INODE_USER }, + {} +}; + enum { OPT_DAX, + OPT_DAX_ENUM, }; static const struct fs_parameter_spec virtio_fs_parameters[] = { fsparam_flag("dax", OPT_DAX), + fsparam_enum("dax", OPT_DAX_ENUM, dax_param_enums), {} }; @@ -110,7 +119,10 @@ static int virtio_fs_parse_param(struct fs_context *fsc, switch (opt) { case OPT_DAX: - ctx->dax = 1; + ctx->dax_mode = FUSE_DAX_ALWAYS; + break; + case OPT_DAX_ENUM: + ctx->dax_mode = result.uint_32; break; default: return -EINVAL; @@ -1326,8 +1338,8 @@ static int virtio_fs_fill_super(struct super_block *sb, struct fs_context *fsc) /* virtiofs allocates and installs its own fuse devices */ ctx->fudptr = NULL; - if (ctx->dax) { - if (!fs->dax_dev) { + if (ctx->dax_mode != FUSE_DAX_NEVER) { + if (ctx->dax_mode == FUSE_DAX_ALWAYS && !fs->dax_dev) { err = -EINVAL; pr_err("virtio-fs: dax can't be enabled as filesystem" " device does not support it.\n"); |