I have now tested the patch.
On Wed, 21 Aug 2024 at 18:55, Anthony Nandaa <profnandaa@xxxxxxxxx> wrote:
>
> I can help with this. Marc, if you can help me with the minimal repro steps, is OneDrive needed?
>
>
> On Wed, Aug 21, 2024, 15:15 Marc <1marc1@xxxxxxxxx> wrote:
>>
>> Happy to help and assist where I can, but I have no idea how I would
>> try this updated code. I think it involves compiling a kernel and
>> applying the patch to it. This is not something I have ever done or
>> have an idea on how to go about it.
>>
>>
>> Op wo 21 aug 2024 om 09:45 schreef Paulo Alcantara <pc@xxxxxxxxxxxxx>:
>> >
>> > Marc <1marc1@xxxxxxxxx> writes:
>> >
>> > > This has been working great for many years. Yesterday, this stopped
>> > > working. When I tried mounting the share, I would get the following
>> > > error: "mount error(95): Operation not supported". In dmesg I see:
>> > > "VFS: parse_reparse_point: unhandled reparse tag: 0x9000601a" and
>> > > "VFS: cifs_read_super: get root inode failed".
>> >
>> > Can you try the following changes? Thanks.
>> >
I see that the patch is in
for-next@80dd92d6ac7d1bc4b95d0a9f4d7730fe5ee42162, so I have just used
that to build a new module.
I created a share from one of the directories in my OneDrive:
sudo mount -t cifs //WIN-31GSG2M9E6N/Users/Usa/OneDrive/Shuttle
/mnt/shuttle -o username=...,password=...
Before the patch, the mounting was failing but after building with the
patch, it mounted successfully.
Aug 21 17:25:32 ubuntu-test-2 kernel: CIFS: VFS: parse_reparse_point:
unhandled reparse tag: 0x9000601a
Aug 21 17:25:32 ubuntu-test-2 kernel: CIFS: VFS: cifs_read_super: get
root inode failed <~~~~ FAIL
...
Aug 21 17:31:22 ubuntu-test-2 kernel: CIFS: Attempting to mount
//WIN-31GSG2M9E6N/Users/Administrator/OneDrive/Shuttle
...
Aug 21 17:31:22 ubuntu-test-2 kernel: CIFS: VFS:
\\WIN-31GSG2M9E6N\Users unhandled reparse tag: 0x9000601a
^^^ SUCCESS.
>> > diff --git a/fs/smb/client/reparse.c b/fs/smb/client/reparse.c
>> > index 689d8a506d45..48c27581ec51 100644
>> > --- a/fs/smb/client/reparse.c
>> > +++ b/fs/smb/client/reparse.c
>> > @@ -378,6 +378,8 @@ int parse_reparse_point(struct reparse_data_buffer *buf,
>> > u32 plen, struct cifs_sb_info *cifs_sb,
>> > bool unicode, struct cifs_open_info_data *data)
>> > {
>> > + struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
>> > +
>> > data->reparse.buf = buf;
>> >
>> > /* See MS-FSCC 2.1.2 */
>> > @@ -394,12 +396,13 @@ int parse_reparse_point(struct reparse_data_buffer *buf,
>> > case IO_REPARSE_TAG_LX_FIFO:
>> > case IO_REPARSE_TAG_LX_CHR:
>> > case IO_REPARSE_TAG_LX_BLK:
>> > - return 0;
>> > + break;
>> > default:
>> > - cifs_dbg(VFS, "%s: unhandled reparse tag: 0x%08x\n",
>> > - __func__, le32_to_cpu(buf->ReparseTag));
>> > - return -EOPNOTSUPP;
>> > + cifs_tcon_dbg(VFS | ONCE, "unhandled reparse tag: 0x%08x\n",
>> > + le32_to_cpu(buf->ReparseTag));
>> > + break;
>> > }
>> > + return 0;
>> > }
>> >
>> > int smb2_parse_reparse_point(struct cifs_sb_info *cifs_sb,
>>
--
___
Nandaa Anthony
