Re: [f2fs-dev] [PATCH] f2fs: fix submit accounting for IPU writeback

[Jaegeuk Kim <jaegeuk@kernel.org>]

On 10/19, Chao Yu via Linux-f2fs-devel wrote:
> On 10/14/26 19:26, Seongjae Jeong wrote:
> > f2fs_write_cache_pages() uses the submitted count, which is set to
> > fio.submitted in f2fs_write_single_data_page(), to update nwritten
> > and decrement wbc->nr_to_write.
> > 
> > In the OPU path, f2fs_submit_page_write() sets fio->submitted to 1.
> > However, in the IPU path, fio->submitted is never set and remains zero.
> > As a result, successful IPU writes are not accounted for.
> > This can cause asynchronous writeback to continue beyond its budget.
> > 
> > Set fio->submitted in f2fs_inplace_write_data() after a page is
> > successfully merged into a bio or submitted, so that successful
> > IPU writes are included in the writeback accounting.
> > 
> 
> Missing Fixes and Cc stable line?

    Cc: stable@kernel.org
    Fixes: d68f735b3bc9 ("f2fs: check io submission more precisely")

> 
> > Signed-off-by: Seongjae Jeong <jsjlee1020@gmail.com>
> Reviewed-by: Chao Yu <chao@kernel.org>
> 
> Thanks,
> 
> 
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