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.
--
Lee Jones [李琼斯]
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