diff --git a/fs/crypto/bio.c b/fs/crypto/bio.c
index 61da06fda45c..82da2510721f 100644
--- a/fs/crypto/bio.c
+++ b/fs/crypto/bio.c
@@ -33,8 +33,8 @@ static void __fscrypt_decrypt_bio(struct bio *bio, bool done)
 
 	bio_for_each_segment_all(bv, bio, iter_all) {
 		struct page *page = bv->bv_page;
-		int ret = fscrypt_decrypt_pagecache_blocks(page, PAGE_SIZE, 0);
-
+		int ret = fscrypt_decrypt_pagecache_blocks(page, bv->bv_len,
+							   bv->bv_offset);
 		if (ret)
 			SetPageError(page);
 		else if (done)