On 08/29, Chao Yu wrote:
> On 8/28/2025 11:23 PM, Jaegeuk Kim wrote:
> > On 08/28, Chao Yu wrote:
> > > On 8/28/25 05:52, Jaegeuk Kim via Linux-f2fs-devel wrote:
> > > > Let's split IPU writes in hot data area to improve the GC efficiency.
> > > 
> > > I didn't get it, IPU may be not friendly for migrating data along w/ 
> > > write in
> > > hot area?
> > 
> > This deals with IPU in the LFS mode.
> 
> Okay, so, we missed to add f2fs_lfs_mode() condition, right?

Why do we need that?

> 
> Thanks,
> 
> > 
> > > 
> > > Thanks,
> > > 
> > > > 
> > > > Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
> > > > ---
> > > >   fs/f2fs/segment.c | 3 ++-
> > > >   1 file changed, 2 insertions(+), 1 deletion(-)
> > > > 
> > > > diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> > > > index e0f6589c6a1c..bb79dad55ac9 100644
> > > > --- a/fs/f2fs/segment.c
> > > > +++ b/fs/f2fs/segment.c
> > > > @@ -3688,7 +3688,8 @@ static int __get_segment_type_6(struct 
> > > > f2fs_io_info *fio)
> > > >                 if (file_is_hot(inode) ||
> > > >                                 is_inode_flag_set(inode, FI_HOT_DATA) ||
> > > > -                               f2fs_is_cow_file(inode))
> > > > +                               f2fs_is_cow_file(inode) ||
> > > > +                               is_inode_flag_set(inode, FI_NEED_IPU))
> > > >                         return CURSEG_HOT_DATA;
> > > >                 return f2fs_rw_hint_to_seg_type(F2FS_I_SB(inode),
> > > >                                                 inode->i_write_hint);


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