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Diffstat (limited to 'fs/crypto/policy.c')
-rw-r--r--fs/crypto/policy.c37
1 files changed, 0 insertions, 37 deletions
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index 7e96953d385e..4ff893f7b030 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -629,43 +629,6 @@ int fscrypt_has_permitted_context(struct inode *parent, struct inode *child)
EXPORT_SYMBOL(fscrypt_has_permitted_context);
/**
- * fscrypt_inherit_context() - Sets a child context from its parent
- * @parent: Parent inode from which the context is inherited.
- * @child: Child inode that inherits the context from @parent.
- * @fs_data: private data given by FS.
- * @preload: preload child i_crypt_info if true
- *
- * Return: 0 on success, -errno on failure
- */
-int fscrypt_inherit_context(struct inode *parent, struct inode *child,
- void *fs_data, bool preload)
-{
- u8 nonce[FSCRYPT_FILE_NONCE_SIZE];
- union fscrypt_context ctx;
- int ctxsize;
- struct fscrypt_info *ci;
- int res;
-
- res = fscrypt_get_encryption_info(parent);
- if (res < 0)
- return res;
-
- ci = fscrypt_get_info(parent);
- if (ci == NULL)
- return -ENOKEY;
-
- get_random_bytes(nonce, FSCRYPT_FILE_NONCE_SIZE);
- ctxsize = fscrypt_new_context(&ctx, &ci->ci_policy, nonce);
-
- BUILD_BUG_ON(sizeof(ctx) != FSCRYPT_SET_CONTEXT_MAX_SIZE);
- res = parent->i_sb->s_cop->set_context(child, &ctx, ctxsize, fs_data);
- if (res)
- return res;
- return preload ? fscrypt_get_encryption_info(child): 0;
-}
-EXPORT_SYMBOL(fscrypt_inherit_context);
-
-/**
* fscrypt_set_context() - Set the fscrypt context of a new inode
* @inode: a new inode
* @fs_data: private data given by FS and passed to ->set_context()