From: Eric Biggers <[email protected]> In __fscrypt_decrypt_bio(), only decrypt the blocks that actually comprise the bio, rather than assuming blocksize == PAGE_SIZE and decrypting the entirety of every page used in the bio.
This is in preparation for allowing encryption on ext4 filesystems with blocksize != PAGE_SIZE. This is based on work by Chandan Rajendra. Reviewed-by: Chandan Rajendra <[email protected]> Signed-off-by: Eric Biggers <[email protected]> --- fs/crypto/bio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/crypto/bio.c b/fs/crypto/bio.c index 61da06fda45cc..82da2510721f6 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) -- 2.21.0.1020.gf2820cf01a-goog _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
