pls ignore this.
On 25.12.2018 18:11, Pavel Butsykin wrote:
> There are some ioctl's that were made to service the kio module, and they
> should not be available to user app.
>
> Also there are two ioctls PCS_IOC_NOCSUMONREAD and PCS_IOC_NOWRITEDELAY that
> must be handled in kio, otherwise they are meaningless. So let's return
> -EOPNOTSUPP unless we implement them in kio.
>
> #VSTOR-19332
>
> Signed-off-by: Pavel Butsykin <pbutsy...@virtuozzo.com>
> ---
> fs/fuse/kio/pcs/pcs_fuse_kdirect.c | 19 ++++++++++++++++---
> fs/fuse/kio/pcs/pcs_ioctl.h | 5 +++++
> 2 files changed, 21 insertions(+), 3 deletions(-)
>
> diff --git a/fs/fuse/kio/pcs/pcs_fuse_kdirect.c
> b/fs/fuse/kio/pcs/pcs_fuse_kdirect.c
> index 89866370a341..13acd2e172f3 100644
> --- a/fs/fuse/kio/pcs/pcs_fuse_kdirect.c
> +++ b/fs/fuse/kio/pcs/pcs_fuse_kdirect.c
> @@ -1110,9 +1110,22 @@ static int pcs_kio_classify_req(struct fuse_conn *fc,
> struct fuse_req *req, bool
> case FUSE_IOCTL: {
> struct fuse_ioctl_in const *inarg = req->in.args[0].value;
>
> - if (inarg->cmd != FS_IOC_FIEMAP)
> - return 1;
> -
> + switch (inarg->cmd) {
> + case FS_IOC_FIEMAP:
> + break;
> + case PCS_IOC_NOCSUMONREAD:
> + case PCS_IOC_NOWRITEDELAY:
> + return -EOPNOTSUPP;
> + case PCS_IOC_INIT_KDIRECT:
> + case PCS_IOC_CSCONN:
> + case PCS_IOC_GETFILEINFO:
> + case PCS_IOC_KDIRECT_CLAIM:
> + case PCS_IOC_KDIRECT_RELEASE:
> + case PCS_IOC_GETMAP:
> + return -EPERM;
> + default:
> + return 1;
> + }
> break;
> }
> default:
> diff --git a/fs/fuse/kio/pcs/pcs_ioctl.h b/fs/fuse/kio/pcs/pcs_ioctl.h
> index 5cf40e35f881..d6c02ae66977 100644
> --- a/fs/fuse/kio/pcs/pcs_ioctl.h
> +++ b/fs/fuse/kio/pcs/pcs_ioctl.h
> @@ -78,6 +78,11 @@ struct pcs_ioc_csconn
> #define PCS_IOC_CS_REOPEN (PCS_IOC_CS_OPEN|PCS_IOC_CS_CLOSE)
> };
>
> +#define PCS_IOC_NOCSUMONREAD _IOW('V',3,u32)
> +# define PCS_IOC_NOCSUMONREAD_DATA 1
> +# define PCS_IOC_NOCSUMONREAD_METADATA 2
> +#define PCS_IOC_NOWRITEDELAY _IOW('V',4,u32)
> +
> #define PCS_IOC_INIT_KDIRECT _IOR('V',32, struct
> pcs_ioc_init_kdirect)
> #define PCS_IOC_CSCONN _IOR('V',33, struct pcs_ioc_csconn)
> #define PCS_IOC_GETFILEINFO _IOR('V',34, struct pcs_ioc_fileinfo)
>
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