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-rw-r--r--include/linux/fs.h5
-rw-r--r--include/linux/fscrypt.h8
2 files changed, 6 insertions, 7 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index d7ab4f96d705..1dafa18169be 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -72,7 +72,6 @@ struct swap_info_struct;
struct seq_file;
struct workqueue_struct;
struct iov_iter;
-struct fscrypt_inode_info;
struct fscrypt_operations;
struct fsverity_info;
struct fsverity_operations;
@@ -780,10 +779,6 @@ struct inode {
struct fsnotify_mark_connector __rcu *i_fsnotify_marks;
#endif
-#ifdef CONFIG_FS_ENCRYPTION
- struct fscrypt_inode_info *i_crypt_info;
-#endif
-
#ifdef CONFIG_FS_VERITY
struct fsverity_info *i_verity_info;
#endif
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index d7ff53accbfe..516aba5b858b 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -201,11 +201,15 @@ struct fscrypt_operations {
int fscrypt_d_revalidate(struct inode *dir, const struct qstr *name,
struct dentry *dentry, unsigned int flags);
+/*
+ * Returns the address of the fscrypt info pointer within the
+ * filesystem-specific part of the inode. (To save memory on filesystems that
+ * don't support fscrypt, a field in 'struct inode' itself is no longer used.)
+ */
static inline struct fscrypt_inode_info **
fscrypt_inode_info_addr(const struct inode *inode)
{
- if (inode->i_sb->s_cop->inode_info_offs == 0)
- return (struct fscrypt_inode_info **)&inode->i_crypt_info;
+ VFS_WARN_ON_ONCE(inode->i_sb->s_cop->inode_info_offs == 0);
return (void *)inode + inode->i_sb->s_cop->inode_info_offs;
}