On 4/13/2015 8:53 PM, Benjamin Coddington wrote:
> On Mon, 13 Apr 2015, Kinglong Mee wrote:
>
>> When mounting nfs with -overs=4,minorversion=2, want getting
>> nfs mounts with vers=4.2, but got vers=4.0 as,
>>
>> # mount -t nfs -onfsvers=4,minorversion=2 127.0.0.1:/ /mnt/
>> # cat /proc/mounts | grep vers
>> 127.0.0.1:/ /mnt nfs4 rw,relatime,vers=4.0,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=127.0.0.1,local_lock=none,addr=127.0.0.1 0 0
>>
>> It's caused by mount.nfs writing bad vers to kernel. This patch
>> lets mount.nfs writing signal number to kernel as command line.
>>
>> Note： This patch is based on my last patch,
>> "mount: make sure mounting nfs with v4,vers=4 and nfsvers=4"
>>
>> Signed-off-by: Kinglong Mee <kinglongmee@xxxxxxxxx>
>
> Looks good.
>
> Reviewed-by: Benjamin Coddington <bcodding@xxxxxxxxxx>
Add this one?
thanks,
Kinglong Mee
>> ---
>> utils/mount/stropts.c | 9 +++++++--
>> 1 file changed, 7 insertions(+), 2 deletions(-)
>>
>> diff --git a/utils/mount/stropts.c b/utils/mount/stropts.c
>> index 2ae532e..c8f5a6d 100644
>> --- a/utils/mount/stropts.c
>> +++ b/utils/mount/stropts.c
>> @@ -737,8 +737,13 @@ static int nfs_do_mount_v4(struct nfsmount_info *mi,
>> }
>>
>> if (mi->version.v_mode != V_SPECIFIC) {
>> - snprintf(version_opt, sizeof(version_opt) - 1,
>> - "vers=%lu.%lu", mi->version.major, mi->version.minor);
>> + if (mi->version.v_mode == V_GENERAL)
>> + snprintf(version_opt, sizeof(version_opt) - 1,
>> + "vers=%lu", mi->version.major);
>> + else
>> + snprintf(version_opt, sizeof(version_opt) - 1,
>> + "vers=%lu.%lu", mi->version.major,
>> + mi->version.minor);
>>
>> if (po_append(options, version_opt) == PO_FAILED) {
>> errno = EINVAL;
>> --
>> 2.3.5
>>
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>
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