fscrypt: Constify struct inode pointer
Some filesystems, such as UBIFS, maintain a const pointer for struct
inode.
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>
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c
index e170aa0..f5c5e84 100644
--- a/fs/crypto/crypto.c
+++ b/fs/crypto/crypto.c
@@ -88,7 +88,7 @@ EXPORT_SYMBOL(fscrypt_release_ctx);
* Return: An allocated and initialized encryption context on success; error
* value or NULL otherwise.
*/
-struct fscrypt_ctx *fscrypt_get_ctx(struct inode *inode, gfp_t gfp_flags)
+struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode, gfp_t gfp_flags)
{
struct fscrypt_ctx *ctx = NULL;
struct fscrypt_info *ci = inode->i_crypt_info;
@@ -146,7 +146,7 @@ typedef enum {
FS_ENCRYPT,
} fscrypt_direction_t;
-static int do_page_crypto(struct inode *inode,
+static int do_page_crypto(const struct inode *inode,
fscrypt_direction_t rw, pgoff_t index,
struct page *src_page, struct page *dest_page,
unsigned int src_len, unsigned int src_offset,
@@ -231,7 +231,7 @@ static struct page *alloc_bounce_page(struct fscrypt_ctx *ctx, gfp_t gfp_flags)
* Return: An allocated page with the encrypted content on success. Else, an
* error value or NULL.
*/
-struct page *fscrypt_encrypt_page(struct inode *inode,
+struct page *fscrypt_encrypt_page(const struct inode *inode,
struct page *plaintext_page,
unsigned int plaintext_len,
unsigned int plaintext_offset,
@@ -290,7 +290,7 @@ EXPORT_SYMBOL(fscrypt_encrypt_page);
*
* Return: Zero on success, non-zero otherwise.
*/
-int fscrypt_decrypt_page(struct inode *inode, struct page *page,
+int fscrypt_decrypt_page(const struct inode *inode, struct page *page,
unsigned int len, unsigned int offs)
{
return do_page_crypto(inode, FS_DECRYPT, page->index, page, page, len, offs,
@@ -298,7 +298,7 @@ int fscrypt_decrypt_page(struct inode *inode, struct page *page,
}
EXPORT_SYMBOL(fscrypt_decrypt_page);
-int fscrypt_zeroout_range(struct inode *inode, pgoff_t lblk,
+int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
sector_t pblk, unsigned int len)
{
struct fscrypt_ctx *ctx;