On 06/09/2017 02:20 AM, NeilBrown wrote:
> On Thu, Jun 08 2017, Steve Dickson wrote:
>
>> When the nfs4 filesystem specified, the default major
>> and minor versions should be used.
>>
>> Signed-off-by: Steve Dickson <steved@xxxxxxxxxx>
>
> Hi Steve,
> I think this is definitely heading in the right direction.
> I particularly like that you've #defined for the default major/minor.
>
> However as I reflected on it, I realised that "-o v4" needs to set
> the same version as "-t nfs4", and even with this patch it doesn't.
Good catch!
>
> I think we need to focus on nfs_default_version() and make sure it does
> the right thing.
>
> If v.mode == V_DEFAULT, we need to copy both 'major' and 'minor'
> from config_default_vers if they are set. If
> config_default_vers.v_mode == V_GENERAL, .minor won't be set so in
> that case we need to use NFS_DEFAULT_MINOR;
>
> If v.mode == V_GENERAL, then only copy the minor if it is set and the
> major is correct. So we need to check for V_SPECIFIC, and other wise
> use the default minor.
That's how it worked out...
>
> If v.mode == V_SPECIFIC, nfs_default_version isn't called, so it
> doesn't matter.
>
> I think this gets it right...
Also nfs_do_mount_v4() needs to check the minor
version as well...
thanks!
steved.
>
> Thoughts?
>
> Thanks,
> NeilBrown
>
> diff --git a/utils/mount/stropts.c b/utils/mount/stropts.c
> index c0266e51ad1c..7dfdd9e62115 100644
> --- a/utils/mount/stropts.c
> +++ b/utils/mount/stropts.c
> @@ -73,6 +73,13 @@
> #define NFS_DEF_BG_TIMEOUT_MINUTES (10000u)
> #endif
>
> +#ifndef NFS_DEFAULT_MAJOR
> +#define NFS_DEFAULT_MAJOR 4
> +#endif
> +#ifndef NFS_DEFAULT_MINOR
> +#define NFS_DEFAULT_MINOR 2
> +#endif
> +
> extern int nfs_mount_data_version;
> extern char *progname;
> extern int verbose;
> @@ -110,22 +117,27 @@ static void nfs_default_version(struct nfsmount_info *mi)
> }
>
> if (mi->version.v_mode == V_DEFAULT &&
> - config_default_vers.v_mode != V_DEFAULT) {
> + config_default_vers.v_mode != V_DEFAULT) {
> mi->version.major = config_default_vers.major;
> - mi->version.minor = config_default_vers.minor;
> + if (config_default_vers.v_mode == V_SPECIFIC)
> + mi->version.minor = config_default_vers.minor;
> + else
> + mi->version.minor = NFS_DEFAULT_MINOR;
> return;
> }
>
> if (mi->version.v_mode == V_GENERAL) {
> - if (config_default_vers.v_mode != V_DEFAULT &&
> + if (config_default_vers.v_mode == V_SPECIFIC &&
> mi->version.major == config_default_vers.major)
> mi->version.minor = config_default_vers.minor;
> + else
> + mi->version.minor = NFS_DEFAULT_MINOR;
> return;
> }
>
> #endif /* MOUNT_CONFIG */
> - mi->version.major = 4;
> - mi->version.minor = 2;
> + mi->version.major = NFS_DEFAULT_MAJOR;
> + mi->version.minor = NFS_DEFAULT_MINOR;
> }
>
> /*
>
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