diff options
| author | Eric Biggers <ebiggers@google.com> | 2019-05-20 18:29:41 +0200 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2019-05-28 19:27:52 +0200 |
| commit | f47fcbb2b578bdb213d9ac5875aab56a2034d466 (patch) | |
| tree | 2303eae811faf83ca3573685a8cafe248eeab1ab /fs/crypto/crypto.c | |
| parent | fscrypt: remove the "write" part of struct fscrypt_ctx (diff) | |
| download | linux-f47fcbb2b578bdb213d9ac5875aab56a2034d466.tar.xz linux-f47fcbb2b578bdb213d9ac5875aab56a2034d466.zip | |
fscrypt: rename fscrypt_do_page_crypto() to fscrypt_crypt_block()
fscrypt_do_page_crypto() only does a single encryption or decryption
operation, with a single logical block number (single IV). So it
actually operates on a filesystem block, not a "page" per se. To
reflect this, rename it to fscrypt_crypt_block().
Reviewed-by: Chandan Rajendra <chandan@linux.ibm.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Diffstat (limited to 'fs/crypto/crypto.c')
| -rw-r--r-- | fs/crypto/crypto.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c index 9dd7a643eae0..a798c52e3dc9 100644 --- a/fs/crypto/crypto.c +++ b/fs/crypto/crypto.c @@ -148,10 +148,11 @@ void fscrypt_generate_iv(union fscrypt_iv *iv, u64 lblk_num, crypto_cipher_encrypt_one(ci->ci_essiv_tfm, iv->raw, iv->raw); } -int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, - u64 lblk_num, struct page *src_page, - struct page *dest_page, unsigned int len, - unsigned int offs, gfp_t gfp_flags) +/* Encrypt or decrypt a single filesystem block of file contents */ +int fscrypt_crypt_block(const struct inode *inode, fscrypt_direction_t rw, + u64 lblk_num, struct page *src_page, + struct page *dest_page, unsigned int len, + unsigned int offs, gfp_t gfp_flags) { union fscrypt_iv iv; struct skcipher_request *req = NULL; @@ -228,9 +229,9 @@ struct page *fscrypt_encrypt_page(const struct inode *inode, if (inode->i_sb->s_cop->flags & FS_CFLG_OWN_PAGES) { /* with inplace-encryption we just encrypt the page */ - err = fscrypt_do_page_crypto(inode, FS_ENCRYPT, lblk_num, page, - ciphertext_page, len, offs, - gfp_flags); + err = fscrypt_crypt_block(inode, FS_ENCRYPT, lblk_num, page, + ciphertext_page, len, offs, + gfp_flags); if (err) return ERR_PTR(err); @@ -244,9 +245,8 @@ struct page *fscrypt_encrypt_page(const struct inode *inode, if (!ciphertext_page) return ERR_PTR(-ENOMEM); - err = fscrypt_do_page_crypto(inode, FS_ENCRYPT, lblk_num, - page, ciphertext_page, len, offs, - gfp_flags); + err = fscrypt_crypt_block(inode, FS_ENCRYPT, lblk_num, page, + ciphertext_page, len, offs, gfp_flags); if (err) { fscrypt_free_bounce_page(ciphertext_page); return ERR_PTR(err); @@ -278,8 +278,8 @@ int fscrypt_decrypt_page(const struct inode *inode, struct page *page, if (!(inode->i_sb->s_cop->flags & FS_CFLG_OWN_PAGES)) BUG_ON(!PageLocked(page)); - return fscrypt_do_page_crypto(inode, FS_DECRYPT, lblk_num, page, page, - len, offs, GFP_NOFS); + return fscrypt_crypt_block(inode, FS_DECRYPT, lblk_num, page, page, + len, offs, GFP_NOFS); } EXPORT_SYMBOL(fscrypt_decrypt_page); |