diff options
| author | Eric Biggers <ebiggers@google.com> | 2018-04-18 11:09:47 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-05-02 14:30:57 -0700 |
| commit | 0cb8dae4a0df2a977847c2dc6766a7783ce50f9d (patch) | |
| tree | 31a349816ada3856f84a1be5639e1192236a698b /fs/crypto/fscrypt_private.h | |
| parent | 2d618bdf71635463a4aa4ad0fe46ec852292bc0c (diff) | |
fscrypt: allow synchronous bio decryption
Currently, fscrypt provides fscrypt_decrypt_bio_pages() which decrypts a
bio's pages asynchronously, then unlocks them afterwards. But, this
assumes that decryption is the last "postprocessing step" for the bio,
so it's incompatible with additional postprocessing steps such as
authenticity verification after decryption.
Therefore, rename the existing fscrypt_decrypt_bio_pages() to
fscrypt_enqueue_decrypt_bio(). Then, add fscrypt_decrypt_bio() which
decrypts the pages in the bio synchronously without unlocking the pages,
nor setting them Uptodate; and add fscrypt_enqueue_decrypt_work(), which
enqueues work on the fscrypt_read_workqueue. The new functions will be
used by filesystems that support both fscrypt and fs-verity.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/crypto/fscrypt_private.h')
| -rw-r--r-- | fs/crypto/fscrypt_private.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h index ad6722bae8b7..4012558f6115 100644 --- a/fs/crypto/fscrypt_private.h +++ b/fs/crypto/fscrypt_private.h @@ -97,7 +97,6 @@ static inline bool fscrypt_valid_enc_modes(u32 contents_mode, /* crypto.c */ extern struct kmem_cache *fscrypt_info_cachep; extern int fscrypt_initialize(unsigned int cop_flags); -extern struct workqueue_struct *fscrypt_read_workqueue; extern int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw, u64 lblk_num, struct page *src_page, |