[PATCH v2 5/8] block: respect bio_required_sector_alignment() in blk-crypto-fallback

[Satya Tangirala]

Make blk_crypto_split_bio_if_needed() respect
bio_required_sector_alignment() when calling bio_split().

Signed-off-by: Satya Tangirala <sat...@google.com>
---
 block/blk-crypto-fallback.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/block/blk-crypto-fallback.c b/block/blk-crypto-fallback.c
index c322176a1e09..85c813ef670b 100644
--- a/block/blk-crypto-fallback.c
+++ b/block/blk-crypto-fallback.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/random.h>
 
+#include "blk.h"
 #include "blk-crypto-internal.h"
 
 static unsigned int num_prealloc_bounce_pg = 32;
@@ -225,6 +226,8 @@ static bool blk_crypto_split_bio_if_needed(struct bio 
**bio_ptr)
        if (num_sectors < bio_sectors(bio)) {
                struct bio *split_bio;
 
+               num_sectors = round_down(num_sectors,
+                                        bio_required_sector_alignment(bio));
                split_bio = bio_split(bio, num_sectors, GFP_NOIO,
                                      &crypto_bio_split);
                if (!split_bio) {
-- 
2.31.0.291.g576ba9dcdaf-goog