Re: FAILED: patch "[PATCH] ext4: do not update s_last_mounted of a frozen fs" failed to apply to 4.17-stable tree

[Greg KH <gregkh@linuxfoundation.org>]

On Thu, Jul 05, 2018 at 06:27:01PM +0200, Greg KH wrote:
> On Fri, Jun 22, 2018 at 12:25:43AM +0300, Amir Goldstein wrote:
> > On Fri, Jun 22, 2018 at 12:15 AM,  <gregkh@linuxfoundation.org> wrote:
> > >
> > > The patch below does not apply to the 4.17-stable tree.
> > 
> > There is a [backport hint] at the end of the commit message.
> > Need to take the 2 prep commits.
> > Same for all stable branches.
> > 
> > Cheers,
> > Amir.
> > 
> > > If someone wants it applied there, or to any other stable or longterm
> > > tree, then please email the backport, including the original git commit
> > > id to <stable@vger.kernel.org>.
> > >
> > > thanks,
> > >
> > > greg k-h
> > >
> > > ------------------ original commit in Linus's tree ------------------
> > >
> > > From db6516a5e7ddb6dc72d167b920f2f272596ea22d Mon Sep 17 00:00:00 2001
> > > From: Amir Goldstein <amir73il@gmail.com>
> > > Date: Sun, 13 May 2018 22:54:44 -0400
> > > Subject: [PATCH] ext4: do not update s_last_mounted of a frozen fs
> > >
> > > If fs is frozen after mount and before the first file open, the
> > > update of s_last_mounted bypasses freeze protection and prints out
> > > a WARNING splat:
> > >
> > > $ mount /vdf
> > > $ fsfreeze -f /vdf
> > > $ cat /vdf/foo
> > >
> > > [   31.578555] WARNING: CPU: 1 PID: 1415 at
> > > fs/ext4/ext4_jbd2.c:53 ext4_journal_check_start+0x48/0x82
> > >
> > > [   31.614016] Call Trace:
> > > [   31.614997]  __ext4_journal_start_sb+0xe4/0x1a4
> > > [   31.616771]  ? ext4_file_open+0xb6/0x189
> > > [   31.618094]  ext4_file_open+0xb6/0x189
> > >
> > > If fs is frozen, skip s_last_mounted update.
> > >
> > > [backport hint: to apply to stable tree, need to apply also patches
> > >  vfs: add the sb_start_intwrite_trylock() helper
> > >  ext4: factor out helper ext4_sample_last_mounted()]
> 
> For "hints", can you provide the git commit id in the future so I don't
> have to dig them out myself?

And those backports don't apply properly :(

Can you please provide a series of patches backported to the stable
trees you feel these should go to, so I can apply them?

thanks,

greg k-h