[PATCH][smb3 client] allow debugging session and tcon info to improve stats analysis and debugging

[Steve French]

Updated patch to remove dumping of flags (tcon->Flags was already
supposed to be dumped via
the other ioctl (CIFS_IOC_GET_MNT_INFO) but it had a minor bug - will
send followon patch for that)


On Thu, Nov 9, 2023 at 3:51 PM Steve French <smfrench at gmail.com> wrote:
>
> [PATCH] smb3: allow debugging session and tcon info to improve stats
>  analysis and debugging
>
> When multiple mounts are to the same share from the same client it was not
> possible to determine which section of /proc/fs/cifs/Stats (and DebugData)
> correspond to that mount.  In some recent examples this turned out to  be
> a significant problem when trying to analyze performance problems - since
> there are many cases where unless we know the tree id and session id we
> can't figure out which stats (e.g. number of SMB3.1.1 requests by type,
> the total time they take, which is slowest, how many fail etc.) apply to
> which mount.
>
> Add an ioctl to return tid, session id, tree connect count and tcon flags.
>
> --
> Thanks,
>
> Steve



-- 
Thanks,

Steve
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