ср, 26 февр. 2020 г. в 07:39, Murphy Zhou <jencce.kernel@xxxxxxxxx>:
>
> On Fri, Feb 21, 2020 at 10:30:01AM +0800, Murphy Zhou wrote:
> > Since commit d0677992d2af ("cifs: add support for flock") added
> > support for flock, LTP/flock03[1] testcase started to fail.
> >
> > This testcase is testing flock lock and unlock across fork.
> > The parent locks file and starts the child process, in which
> > it unlock the same fd and lock the same file with another fd
> > again. All the lock and unlock operation should succeed.
> >
> > Now the child process does not actually unlock the file, so
> > the following lock fails. Fix this by allowing flock and OFD
> > lock go through the unlock routine, not skipping if the unlock
> > request comes from another process.
> >
> > Patch has been tested by LTP/xfstests on samba and Windows
> > server, v3.11, with or without cache=none mount option.
>
> Also tested with or without "nolease" mount option. No new
> issue shows.
>
Great, thanks!
--
Best regards,
Pavel Shilovsky
