On Sun, Aug 10, 2025 at 06:15:51PM +0800, alexjlzheng@xxxxxxxxx wrote: > From: Jinliang Zheng <alexjlzheng@xxxxxxxxxxx> > > iomap_folio_state marks the uptodate state in units of block_size, so > it is better to check that pos and length are aligned with block_size. > > Signed-off-by: Jinliang Zheng <alexjlzheng@xxxxxxxxxxx> > --- > fs/iomap/buffered-io.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c > index fd827398afd2..934458850ddb 100644 > --- a/fs/iomap/buffered-io.c > +++ b/fs/iomap/buffered-io.c > @@ -234,6 +234,9 @@ static void iomap_adjust_read_range(struct inode *inode, struct folio *folio, > unsigned first = poff >> block_bits; > unsigned last = (poff + plen - 1) >> block_bits; > > + BUG_ON(*pos & (block_size - 1)); > + BUG_ON(length & (block_size - 1)); We should not add BUG_ON calls like this, please turn these into WARN_ON_ONCE instead.
