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.

> 
> 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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