Allow batching of forget requests

This allows forget requests to be processed faster and doesn't require
a modification to fuse filesystems.  Reported by Terje Malmedal

1 files changed, 15 insertions, 1 deletions

diff --git a/include/fuse_kernel.h b/include/fuse_kernel.h
index c7c99a5..7e7ca17 100644
--- a/include/fuse_kernel.h
+++ b/include/fuse_kernel.h
@@ -67,6 +67,9 @@
  * 7.15
  *  - add store notify
  *  - add retrieve notify
+ *
+ * 7.16
+ *  - add BATCH_FORGET request
  */
 
 #ifndef _LINUX_FUSE_H
@@ -103,7 +106,7 @@
 #define FUSE_KERNEL_VERSION 7
 
 /** Minor version number of this interface */
-#define FUSE_KERNEL_MINOR_VERSION 15
+#define FUSE_KERNEL_MINOR_VERSION 16
 
 /** The node ID of the root inode */
 #define FUSE_ROOT_ID 1
@@ -287,6 +290,7 @@ enum fuse_opcode {
 	FUSE_IOCTL         = 39,
 	FUSE_POLL          = 40,
 	FUSE_NOTIFY_REPLY  = 41,
+	FUSE_BATCH_FORGET  = 42,
 
 	/* CUSE specific operations */
 	CUSE_INIT          = 4096,
@@ -321,6 +325,16 @@ struct fuse_forget_in {
 	__u64	nlookup;
 };
 
+struct fuse_forget_one {
+	__u64	nodeid;
+	__u64	nlookup;
+};
+
+struct fuse_batch_forget_in {
+	__u32	count;
+	__u32	dummy;
+};
+
 struct fuse_getattr_in {
 	__u32	getattr_flags;
 	__u32	dummy;