On Mon, Aug 25, 2014 at 5:07 PM, Ben Hutchings <ben@xxxxxxxxxxxxxxx> wrote:
> On Mon, 2014-08-25 at 01:51 -0400, Xiong Zhou wrote:
>> When export root dir(/) via nfs, and mount a particular dir under root, eg
>> /nfsexport, there will be defect double slash output in /proc/mounts, like
>> localhost://nfsexport. While this patch change it to localhost:/nfsexport.
>>
>> Signed-off-by: Xiong Zhou <xzhou@xxxxxxxxxx>
>> ---
>> fs/nfs/namespace.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
>> index b5a0afc..24f954e 100644
>> --- a/fs/nfs/namespace.c
>> +++ b/fs/nfs/namespace.c
>> @@ -98,7 +98,7 @@ rename_retry:
>> return end;
>> }
>> namelen = strlen(base);
>> - if (flags & NFS_PATH_CANONICAL) {
>> + if ((flags & NFS_PATH_CANONICAL) || *end == '/') {
>> /* Strip off excess slashes in base string */
>> while (namelen > 0 && base[namelen - 1] == '/')
>> namelen--;
>
> I think this makes sense, though I'm not sure I completely understand
> this function. :-/
>
It breaks the function's guarantee concerning NFS_PATH_CANONICAL; that
"if unset, the original name is returned verbatim".
--
Trond Myklebust
Linux NFS client maintainer, PrimaryData
trond.myklebust@xxxxxxxxxxxxxxx
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