After the first 'for' loop, the first call to ifs_block_is_uptodate always evaluates to 0. Signed-off-by: Gou Hao <gouhao@xxxxxxxxxxxxx> --- fs/iomap/buffered-io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 31553372b33a..2f52e8e61240 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -259,7 +259,7 @@ static void iomap_adjust_read_range(struct inode *inode, struct folio *folio, } /* truncate len if we find any trailing uptodate block(s) */ - for ( ; i <= last; i++) { + for (i++; i <= last; i++) { if (ifs_block_is_uptodate(ifs, i)) { plen -= (last - i + 1) * block_size; last = i - 1; -- 2.20.1