diff options
| author | David Gstir <david@sigma-star.at> | 2016-11-14 00:20:46 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2016-11-14 02:55:21 +0300 |
| commit | 7821d4dd4589ce5af54f3e46d04a29439ba3c2e5 (patch) | |
| tree | c9c424077630d6bec61a22905e7fec2cef9a9a8f /include | |
| parent | b50f7b268bad8088dfe7579a65cd910d8cc5c40f (diff) | |
| download | linux-7821d4dd4589ce5af54f3e46d04a29439ba3c2e5.tar.xz | |
fscrypt: Enable partial page encryption
Not all filesystems work on full pages, thus we should allow them to
hand partial pages to fscrypt for en/decryption.
Signed-off-by: David Gstir <david@sigma-star.at>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fscrypto.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/include/linux/fscrypto.h b/include/linux/fscrypto.h index 8be8e9657c63..e05931272cea 100644 --- a/include/linux/fscrypto.h +++ b/include/linux/fscrypto.h @@ -248,8 +248,11 @@ int fscrypt_initialize(void); extern struct fscrypt_ctx *fscrypt_get_ctx(struct inode *, gfp_t); extern void fscrypt_release_ctx(struct fscrypt_ctx *); -extern struct page *fscrypt_encrypt_page(struct inode *, struct page *, gfp_t); -extern int fscrypt_decrypt_page(struct inode *, struct page *); +extern struct page *fscrypt_encrypt_page(struct inode *, struct page *, + unsigned int, unsigned int, + gfp_t); +extern int fscrypt_decrypt_page(struct inode *, struct page *, unsigned int, + unsigned int); extern void fscrypt_decrypt_bio_pages(struct fscrypt_ctx *, struct bio *); extern void fscrypt_pullback_bio_page(struct page **, bool); extern void fscrypt_restore_control_page(struct page *); @@ -293,13 +296,16 @@ static inline void fscrypt_notsupp_release_ctx(struct fscrypt_ctx *c) } static inline struct page *fscrypt_notsupp_encrypt_page(struct inode *i, - struct page *p, gfp_t f) + struct page *p, + unsigned int len, + unsigned int offs, + gfp_t f) { return ERR_PTR(-EOPNOTSUPP); } -static inline int fscrypt_notsupp_decrypt_page(struct inode *i, - struct page *p) +static inline int fscrypt_notsupp_decrypt_page(struct inode *i, struct page *p, + unsigned int len, unsigned int offs) { return -EOPNOTSUPP; } |