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authorRichard Weinberger <richard@nod.at>2016-12-19 14:25:32 +0300
committerTheodore Ts'o <tytso@mit.edu>2017-01-02 00:18:49 +0300
commit58ae74683ae2c07cd717a91799edb50231061938 (patch)
tree9b50060a37c9908b6c642c7c5aedec5e2282d72b /fs/crypto/fscrypt_private.h
parentefee590e4a3fa7b66f78aa06eff33f59570ca96d (diff)
downloadlinux-58ae74683ae2c07cd717a91799edb50231061938.tar.xz
fscrypt: factor out bio specific functions
That way we can get rid of the direct dependency on CONFIG_BLOCK. Fixes: d475a507457b ("ubifs: Add skeleton for fscrypto") Reported-by: Arnd Bergmann <arnd@arndb.de> Reported-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-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 'fs/crypto/fscrypt_private.h')
-rw-r--r--fs/crypto/fscrypt_private.h16
1 files changed, 15 insertions, 1 deletions
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index aeab032d7d35..7bff7b4c7498 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -71,6 +71,11 @@ struct fscrypt_info {
u8 ci_master_key[FS_KEY_DESCRIPTOR_SIZE];
};
+typedef enum {
+ FS_DECRYPT = 0,
+ FS_ENCRYPT,
+} fscrypt_direction_t;
+
#define FS_CTX_REQUIRES_FREE_ENCRYPT_FL 0x00000001
#define FS_CTX_HAS_BOUNCE_BUFFER_FL 0x00000002
@@ -85,7 +90,16 @@ struct fscrypt_completion_result {
/* crypto.c */
-int fscrypt_initialize(unsigned int cop_flags);
+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,
+ struct page *dest_page,
+ unsigned int len, unsigned int offs,
+ gfp_t gfp_flags);
+extern struct page *fscrypt_alloc_bounce_page(struct fscrypt_ctx *ctx,
+ gfp_t gfp_flags);
/* keyinfo.c */
extern int fscrypt_get_crypt_info(struct inode *);