[PATCH v4 01/15] fs: add fscrypt offset

Christian Brauner
2025-07-23T10:58:05Z

Store the offset of the fscrypt data pointer from struct inode in struct
fscrypt_operations. Both are embedded in the filesystem's private inode.

This will allow us to drop the fscrypt data pointer from struct inode
itself and move it into the filesystem's inode.

Signed-off-by: Christian Brauner <brauner@kernel.org>
---
include/linux/fscrypt.h | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index 56fad33043d5..0ece9d443c82 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -61,6 +61,11 @@ struct fscrypt_name {

/* Crypto operations for filesystems */
struct fscrypt_operations {
+ /**
+ * The offset of struct fscrypt_inode_info from struct inode embedded
+ * in the filesystem's inode.
+ */
+ ptrdiff_t inode_info_offs;

/*
* If set, then fs/crypto/ will allocate a global bounce page pool the

--
2.47.2