md/raid0: remove unused function is_io_in_chunk_boundary()

This function is no longger needed after commit 20d0189b1012 ("block:
Introduce new bio_split()").

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Song Liu <songliubraving@fb.com>

diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index e2de0cced707278e90c3f4b5fe4bebad40496681..6f44177593a552dd5ba4c1979b58494845a1cee0 100644 (file)
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -426,23 +426,6 @@ static void raid0_free(struct mddev *mddev, void *priv)
        kfree(conf);
 }
 
-/*
- * Is io distribute over 1 or more chunks ?
-*/
-static inline int is_io_in_chunk_boundary(struct mddev *mddev,
-                       unsigned int chunk_sects, struct bio *bio)
-{
-       if (likely(is_power_of_2(chunk_sects))) {
-               return chunk_sects >=
-                       ((bio->bi_iter.bi_sector & (chunk_sects-1))
-                                       + bio_sectors(bio));
-       } else{
-               sector_t sector = bio->bi_iter.bi_sector;
-               return chunk_sects >= (sector_div(sector, chunk_sects)
-                                               + bio_sectors(bio));
-       }
-}
-
 static void raid0_handle_discard(struct mddev *mddev, struct bio *bio)
 {
        struct r0conf *conf = mddev->private;