Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt

Pull fscrypt updates from Eric Biggers:

 - Preparations for supporting encryption on ext4 filesystems where the
   filesystem block size is smaller than PAGE_SIZE.

 - Don't allow setting encryption policies on dead directories.

 - Various cleanups.

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
  fscrypt: document testing with xfstests
  fscrypt: remove selection of CONFIG_CRYPTO_SHA256
  fscrypt: remove unnecessary includes of ratelimit.h
  fscrypt: don't set policy for a dead directory
  ext4: encrypt only up to last block in ext4_bio_write_page()
  ext4: decrypt only the needed block in __ext4_block_zero_page_range()
  ext4: decrypt only the needed blocks in ext4_block_write_begin()
  ext4: clear BH_Uptodate flag on decryption error
  fscrypt: decrypt only the needed blocks in __fscrypt_decrypt_bio()
  fscrypt: support decrypting multiple filesystem blocks per page
  fscrypt: introduce fscrypt_decrypt_block_inplace()
  fscrypt: handle blocksize < PAGE_SIZE in fscrypt_zeroout_range()
  fscrypt: support encrypting multiple filesystem blocks per page
  fscrypt: introduce fscrypt_encrypt_block_inplace()
  fscrypt: clean up some BUG_ON()s in block encryption/decryption
  fscrypt: rename fscrypt_do_page_crypto() to fscrypt_crypt_block()
  fscrypt: remove the "write" part of struct fscrypt_ctx
  fscrypt: simplify bounce page handling

1 files changed, 10 insertions, 9 deletions

diff --git a/fs/ubifs/crypto.c b/fs/ubifs/crypto.c
index 4aaedf2d7f44..22be7aeb96c4 100644
--- a/fs/ubifs/crypto.c
+++ b/fs/ubifs/crypto.c
@@ -29,8 +29,8 @@ int ubifs_encrypt(const struct inode *inode, struct ubifs_data_node *dn,
 {
 	struct ubifs_info *c = inode->i_sb->s_fs_info;
 	void *p = &dn->data;
-	struct page *ret;
 	unsigned int pad_len = round_up(in_len, UBIFS_CIPHER_BLOCK_SIZE);
+	int err;
 
 	ubifs_assert(c, pad_len <= *out_len);
 	dn->compr_size = cpu_to_le16(in_len);
@@ -39,11 +39,11 @@ int ubifs_encrypt(const struct inode *inode, struct ubifs_data_node *dn,
 	if (pad_len != in_len)
 		memset(p + in_len, 0, pad_len - in_len);
 
-	ret = fscrypt_encrypt_page(inode, virt_to_page(&dn->data), pad_len,
-			offset_in_page(&dn->data), block, GFP_NOFS);
-	if (IS_ERR(ret)) {
-		ubifs_err(c, "fscrypt_encrypt_page failed: %ld", PTR_ERR(ret));
-		return PTR_ERR(ret);
+	err = fscrypt_encrypt_block_inplace(inode, virt_to_page(p), pad_len,
+					    offset_in_page(p), block, GFP_NOFS);
+	if (err) {
+		ubifs_err(c, "fscrypt_encrypt_block_inplace() failed: %d", err);
+		return err;
 	}
 	*out_len = pad_len;
 
@@ -64,10 +64,11 @@ int ubifs_decrypt(const struct inode *inode, struct ubifs_data_node *dn,
 	}
 
 	ubifs_assert(c, dlen <= UBIFS_BLOCK_SIZE);
-	err = fscrypt_decrypt_page(inode, virt_to_page(&dn->data), dlen,
-			offset_in_page(&dn->data), block);
+	err = fscrypt_decrypt_block_inplace(inode, virt_to_page(&dn->data),
+					    dlen, offset_in_page(&dn->data),
+					    block);
 	if (err) {
-		ubifs_err(c, "fscrypt_decrypt_page failed: %i", err);
+		ubifs_err(c, "fscrypt_decrypt_block_inplace() failed: %d", err);
 		return err;
 	}
 	*out_len = clen;