Re: [fuse-devel] 32 bit app running on 64 bit kernel -ioctl.

[ccmail111 <ccm...@ya...>]

Shouldn't fuse_do_ioctl() use:
            struct compat_iovec *tmp_iov ;
in 32 bit cuse (unrestricted ioctl ) on FUSE 64 bit kernel case ?And usestruct iovec only in other cases ?

--- On Tue, 11/16/10, ccmail111 <ccm...@ya...> wrote:

From: ccmail111 <ccm...@ya...>
Subject: Re: [fuse-devel] 32 bit app running on 64 bit kernel -ioctl.
To: "Miklos Szeredi" <mi...@sz...>
Cc: fus...@li..., mi...@sz...
Date: Tuesday, November 16, 2010, 1:24 PM


Yes Miklos, FUSE_IOCTL_UNRESTRICTED - ioctl does not work in 32 bit cuse server with 64 bit FUSE kernel module.

long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,           unsigned int flags)


--- On Tue, 11/16/10, Miklos Szeredi <mi...@sz...> wrote:

From: Miklos Szeredi <mi...@sz...>
Subject: Re: [fuse-devel] 32 bit app running on 64 bit kernel -ioctl.
To: "ccmail111" <ccm...@ya...>
Cc: fus...@li..., mi...@sz...
Date: Tuesday, November 16, 2010, 5:01 AM

On Mon, 15 Nov 2010,
 ccmail111 wrote:
> Looking at 2.6.36-rc7 kernel module for FUSE, I donot see any patch
> or fix for below.Apps servers which are 32 bit - does not work on
> 64-bit FUSE kernel module  for ioctl - unrestricted calls !

Please provide more info.

Do you mean FUSE_IOCTL_UNRESTRICTED?

Are you implementing a CUSE server?

Where exactly do you expect FUSE_IOCTL_COMPAT to be present?

Thanks,
Miklos

> 
> 
> Hi,
> I see an issue with ioctl - unrestricted call in FUSE.
> In 32 bit case I see:
> static long fuse_file_compat_ioctl(struct file *file, unsigned int cmd,                   unsigned long arg){    return fuse_file_ioctl_common(file, cmd, arg, FUSE_IOCTL_COMPAT);}
> 
> However, in routine, FUSE_IOCTL_COMPAT is not being used at all, thus causing issues !
> Any suggestions
 ?