Re: [f2fs-dev] [PATCH] f2fs: fix missing read bio submission on large folio error

[Jaegeuk Kim]

On 05/21, Chao Yu via Linux-f2fs-devel wrote:
> On 5/20/26 17:52, Wenjie Qi wrote:
> > From: Wenjie Qi <qiwenjie@xxxxxxxxxx>
> > 
> > f2fs_read_data_large_folio() can keep a read bio across multiple
> > readahead folios.  If a later folio hits an error before any of its
> > blocks are added to the bio, folio_in_bio is false and the current error
> > path returns immediately after ending that folio.
> > 
> > This can leave the bio accumulated for earlier folios unsubmitted.  Those
> > folios then never receive read completion, and readers can wait
> > indefinitely on the locked folios.
> > 
> > Route errors through the common out path so any pending bio is submitted
> > before returning.  Stop consuming more readahead folios once an error is
> > seen, and only wait on and clear the current folio when it was actually
> > added to the bio.
> > 
> 
> Cc: stable@xxxxxxxxxx
> 
> > Fixes: a5d8b9d94e18 ("f2fs: fix to unlock folio in f2fs_read_data_large_folio()")
> > Signed-off-by: Wenjie Qi <qiwenjie@xxxxxxxxxx>
> 
> Reviewed-by: Chao Yu <chao@xxxxxxxxxx>
> 
> BTW, I can not apply the patch, can you please rebase it to last dev branch?

I applied.

> 
> Thanks,
> 
> 
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