[PATCH v2 4/8] btrfs-progs: save and load fscrypt extent contexts

[Sweet Tea Dorminy <sweettea-kernel@dorminy.me>]

Mirrors the relevant part of kernel change 'btrfs: save and load fscrypt
extent contexts' to progs.

Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
---
 kernel-shared/uapi/btrfs_tree.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kernel-shared/uapi/btrfs_tree.h b/kernel-shared/uapi/btrfs_tree.h
index 2df7cfec4..c1c3a46e4 100644
--- a/kernel-shared/uapi/btrfs_tree.h
+++ b/kernel-shared/uapi/btrfs_tree.h
@@ -1075,7 +1075,11 @@ struct btrfs_file_extent_item {
 	 * always reflects the size uncompressed and without encoding.
 	 */
 	__le64 num_bytes;
-
+	/*
+	 * fscrypt extent encryption context. Only present if extent is
+	 * encrypted (stored in the encryption field).
+	 */
+	__u8 encryption_context[0];
 } __attribute__ ((__packed__));
 
 struct btrfs_csum_item {
-- 
2.41.0