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Date: Sun, 3 Apr 2016 00:21:53 -0500
From: Eric Biggers <ebiggers3@...il.com>
To: linux-fsdevel@...r.kernel.org
Cc: linux-f2fs-devel@...ts.sourceforge.net, linux-ext4@...r.kernel.org,
linux-kernel@...r.kernel.org, jaegeuk@...nel.org, tytso@....edu,
mhalcrow@...gle.com, Eric Biggers <ebiggers3@...il.com>
Subject: [PATCH 02/13] fscrypto: rename some functions for clarity
Rename fscrypt_complete() to page_crypt_complete(). This callback is
specifically for data pages; fscrypto also performs filename encryption.
Rename dir_crypt_complete() to fname_crypt_complete(). This callback is
also used for symlink targets, not just directory entries.
Rename fscrypt_process_policy() to fscrypt_set_policy(). The new name
better matches the ioctl, and it goes along with fscrypt_get_policy().
Signed-off-by: Eric Biggers <ebiggers3@...il.com>
---
fs/crypto/crypto.c | 11 ++++++-----
fs/crypto/fname.c | 11 +++++++----
fs/crypto/policy.c | 5 ++---
fs/f2fs/f2fs.h | 2 +-
fs/f2fs/file.c | 2 +-
include/linux/fscrypto.h | 5 ++---
6 files changed, 19 insertions(+), 17 deletions(-)
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c
index 2c7923d..6e550ec 100644
--- a/fs/crypto/crypto.c
+++ b/fs/crypto/crypto.c
@@ -125,11 +125,12 @@ struct fscrypt_ctx *fscrypt_get_ctx(struct inode *inode)
EXPORT_SYMBOL(fscrypt_get_ctx);
/**
- * fscrypt_complete() - The completion callback for page encryption
- * @req: The asynchronous encryption request context
- * @res: The result of the encryption operation
+ * page_crypt_complete() - The completion callback for page encryption and
+ * decryption
+ * @req: The asynchronous cipher request context
+ * @res: The result of the cipher operation
*/
-static void fscrypt_complete(struct crypto_async_request *req, int res)
+static void page_crypt_complete(struct crypto_async_request *req, int res)
{
struct fscrypt_completion_result *ecr = req->data;
@@ -166,7 +167,7 @@ static int do_page_crypto(struct inode *inode,
skcipher_request_set_callback(
req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
- fscrypt_complete, &ecr);
+ page_crypt_complete, &ecr);
BUILD_BUG_ON(FS_XTS_TWEAK_SIZE < sizeof(index));
memcpy(xts_tweak, &index, sizeof(index));
diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index 3108806..c3e3554 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -20,9 +20,12 @@ static u32 size_round_up(size_t size, size_t blksize)
}
/**
- * dir_crypt_complete() -
+ * fname_crypt_complete() - The completion callback for filename encryption and
+ * decryption
+ * @req: The asynchronous cipher request context
+ * @res: The result of the cipher operation
*/
-static void dir_crypt_complete(struct crypto_async_request *req, int res)
+static void fname_crypt_complete(struct crypto_async_request *req, int res)
{
struct fscrypt_completion_result *ecr = req->data;
@@ -82,7 +85,7 @@ static int fname_encrypt(struct inode *inode,
}
skcipher_request_set_callback(req,
CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
- dir_crypt_complete, &ecr);
+ fname_crypt_complete, &ecr);
/* Copy the input */
memcpy(workbuf, iname->name, iname->len);
@@ -144,7 +147,7 @@ static int fname_decrypt(struct inode *inode,
}
skcipher_request_set_callback(req,
CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
- dir_crypt_complete, &ecr);
+ fname_crypt_complete, &ecr);
/* Initialize IV */
memset(iv, 0, FS_CRYPTO_BLOCK_SIZE);
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index 0f9961e..e1d263d 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -92,8 +92,7 @@ static int create_encryption_context_from_policy(struct inode *inode,
return inode->i_sb->s_cop->set_context(inode, &ctx, sizeof(ctx), NULL);
}
-int fscrypt_process_policy(struct inode *inode,
- const struct fscrypt_policy *policy)
+int fscrypt_set_policy(struct inode *inode, const struct fscrypt_policy *policy)
{
if (policy->version != 0)
return -EINVAL;
@@ -113,7 +112,7 @@ int fscrypt_process_policy(struct inode *inode,
__func__);
return -EINVAL;
}
-EXPORT_SYMBOL(fscrypt_process_policy);
+EXPORT_SYMBOL(fscrypt_set_policy);
int fscrypt_get_policy(struct inode *inode, struct fscrypt_policy *policy)
{
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index bbe2cd1..970678d 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2172,7 +2172,7 @@ static inline bool f2fs_may_encrypt(struct inode *inode)
#define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page
#define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page
#define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range
-#define fscrypt_process_policy fscrypt_notsupp_process_policy
+#define fscrypt_set_policy fscrypt_notsupp_set_policy
#define fscrypt_get_policy fscrypt_notsupp_get_policy
#define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context
#define fscrypt_inherit_context fscrypt_notsupp_inherit_context
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index b41c357..ea2c9a9 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1542,7 +1542,7 @@ static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
return -EFAULT;
f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
- return fscrypt_process_policy(inode, &policy);
+ return fscrypt_set_policy(inode, &policy);
}
static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
diff --git a/include/linux/fscrypto.h b/include/linux/fscrypto.h
index cd91f75..4e7bc69 100644
--- a/include/linux/fscrypto.h
+++ b/include/linux/fscrypto.h
@@ -273,8 +273,7 @@ extern void fscrypt_restore_control_page(struct page *);
extern int fscrypt_zeroout_range(struct inode *, pgoff_t, sector_t,
unsigned int);
/* policy.c */
-extern int fscrypt_process_policy(struct inode *,
- const struct fscrypt_policy *);
+extern int fscrypt_set_policy(struct inode *, const struct fscrypt_policy *);
extern int fscrypt_get_policy(struct inode *, struct fscrypt_policy *);
extern int fscrypt_has_permitted_context(struct inode *, struct inode *);
extern int fscrypt_inherit_context(struct inode *, struct inode *,
@@ -343,7 +342,7 @@ static inline int fscrypt_notsupp_zeroout_range(struct inode *i, pgoff_t p,
}
/* policy.c */
-static inline int fscrypt_notsupp_process_policy(struct inode *i,
+static inline int fscrypt_notsupp_set_policy(struct inode *i,
const struct fscrypt_policy *p)
{
return -EOPNOTSUPP;
--
2.7.4
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