On Wed, Jul 23, 2025 at 09:26:39AM +0100, Lee Jones wrote:
> On Wed, 02 Jul 2025, Greg Kroah-Hartman wrote:
>
> > On Tue, Jun 24, 2025 at 11:00:39AM +0100, Lee Jones wrote:
> > > On Wed, 16 Apr 2025, Chao Yu wrote:
> > >
> > > > This patch adds a new sysfs entry /sys/fs/f2fs/<disk>/encoding_flags,
> > > > it is a read-only entry to show the value of sb.s_encoding_flags, the
> > > > value is hexadecimal.
> > > >
> > > > =========================== ==========
> > > > Flag_Name Flag_Value
> > > > =========================== ==========
> > > > SB_ENC_STRICT_MODE_FL 0x00000001
> > > > SB_ENC_NO_COMPAT_FALLBACK_FL 0x00000002
> > > > =========================== ==========
> > > >
> > > > case#1
> > > > mkfs.f2fs -f -O casefold -C utf8:strict /dev/vda
> > > > mount /dev/vda /mnt/f2fs
> > > > cat /sys/fs/f2fs/vda/encoding_flags
> > > > 1
> > > >
> > > > case#2
> > > > mkfs.f2fs -f -O casefold -C utf8 /dev/vda
> > > > fsck.f2fs --nolinear-lookup=1 /dev/vda
> > > > mount /dev/vda /mnt/f2fs
> > > > cat /sys/fs/f2fs/vda/encoding_flags
> > > > 2
> > > >
> > > > Signed-off-by: Chao Yu <c...@kernel.org>
> > > > ---
> > > > Documentation/ABI/testing/sysfs-fs-f2fs | 13 +++++++++++++
> > > > fs/f2fs/sysfs.c | 9 +++++++++
> > > > 2 files changed, 22 insertions(+)
> > >
> > > This patch, commit 617e0491abe4 ("f2fs: sysfs: export linear_lookup in
> > > features directory") upstream, needs to find its way into all Stable
> > > branches containing upstream commit 91b587ba79e1 ("f2fs: Introduce
> > > linear search for dentries"), which is essentially linux-5.15.y and
> > > newer.
> > >
> > > stable/linux-5.4.y:
> > > MISSING: f2fs: Introduce linear search for dentries
> > > MISSING: f2fs: sysfs: export linear_lookup in features directory
> > >
> > > stable/linux-5.10.y:
> > > MISSING: f2fs: Introduce linear search for dentries
> > > MISSING: f2fs: sysfs: export linear_lookup in features directory
> > >
> > > stable/linux-5.15.y:
> > > b0938ffd39ae f2fs: Introduce linear search for dentries [5.15.179]
> > > MISSING: f2fs: sysfs: export linear_lookup in features directory
> > >
> > > stable/linux-6.1.y:
> > > de605097eb17 f2fs: Introduce linear search for dentries [6.1.129]
> > > MISSING: f2fs: sysfs: export linear_lookup in features directory
> > >
> > > stable/linux-6.6.y:
> > > 0bf2adad03e1 f2fs: Introduce linear search for dentries [6.6.76]
> > > MISSING: f2fs: sysfs: export linear_lookup in features directory
> > >
> > > stable/linux-6.12.y:
> > > 00d1943fe46d f2fs: Introduce linear search for dentries [6.12.13]
> > > MISSING: f2fs: sysfs: export linear_lookup in features directory
> > >
> > > mainline:
> > > 91b587ba79e1 f2fs: Introduce linear search for dentries
> > > 617e0491abe4 f2fs: sysfs: export linear_lookup in features directory
> >
> > Great, then can someone submit these in a format we can apply them in?
> > or do clean cherry-picks work properly?
>
> Does this work:
>
> Please backport upstream commit:
>
> 617e0491abe4 f2fs: sysfs: export linear_lookup in features directory
>
> ... to all stable branches up to and including linux-5.15.y.
>
> If there are conflicts, I can do the backport myself and submit as patches.
There are conflicts, it doesn't apply to 6.1.y or 5.15.y :(
thanks,
greg k-h
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