[Virtio-fs] [PATCH 1/4] virtiofsd: Fix number of padding bits in fuse_file_info

Dr. David Alan Gilbert dgilbert at redhat.com
Wed Aug 14 08:54:52 UTC 2019


* Vivek Goyal (vgoyal at redhat.com) wrote:
> Currently we have 27 padding bits while there are 6 bit fields. I suspect
> this is wrong. We probably are trying to aling to 32 bits and hence padding
> bits should be 26 instead.
> 
> Signed-off-by: Vivek Goyal <vgoyal at redhat.com>

Yeh, I reckon this was broken upstream by 19accdf ~6 years ago; whether
it's fixable upstream I don't know because they have API requierments
since it's a library.

Still, it's definitely wrong so:

Reviewed-by: Dr. David Alan Gilbert <dgilbert at redhat.com>

> ---
>  contrib/virtiofsd/fuse_common.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/contrib/virtiofsd/fuse_common.h b/contrib/virtiofsd/fuse_common.h
> index 6419f66470..4d95f6f28b 100644
> --- a/contrib/virtiofsd/fuse_common.h
> +++ b/contrib/virtiofsd/fuse_common.h
> @@ -65,7 +65,7 @@ struct fuse_file_info {
>  	unsigned int flock_release : 1;
>  
>  	/** Padding.  Do not use*/
> -	unsigned int padding : 27;
> +	unsigned int padding : 26;
>  
>  	/** File handle.  May be filled in by filesystem in open().
>  	    Available in all other file operations */
> -- 
> 2.17.2
> 
--
Dr. David Alan Gilbert / dgilbert at redhat.com / Manchester, UK




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