Merge tag 'fuse-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse updates from Miklos Szeredi:

 - Extend copy_file_range interface to be fully 64bit capable (Miklos)

 - Add selftest for fusectl (Chen Linxuan)

 - Move fuse docs into a separate directory (Bagas Sanjaya)

 - Allow fuse to enter freezable state in some cases (Sergey
   Senozhatsky)

 - Clean up writeback accounting after removing tmp page copies (Joanne)

 - Optimize virtiofs request handling (Li RongQing)

 - Add synchronous FUSE_INIT support (Miklos)

 - Allow server to request prune of unused inodes (Miklos)

 - Fix deadlock with AIO/sync release (Darrick)

 - Add some prep patches for block/iomap support (Darrick)

 - Misc fixes and cleanups

* tag 'fuse-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (26 commits)
  fuse: move CREATE_TRACE_POINTS to a separate file
  fuse: move the backing file idr and code into a new source file
  fuse: enable FUSE_SYNCFS for all fuseblk servers
  fuse: capture the unique id of fuse commands being sent
  fuse: fix livelock in synchronous file put from fuseblk workers
  mm: fix lockdep issues in writeback handling
  fuse: add prune notification
  fuse: remove redundant calls to fuse_copy_finish() in fuse_notify()
  fuse: fix possibly missing fuse_copy_finish() call in fuse_notify()
  fuse: remove FUSE_NOTIFY_CODE_MAX from <uapi/linux/fuse.h>
  fuse: remove fuse_readpages_end() null mapping check
  fuse: fix references to fuse.rst -> fuse/fuse.rst
  fuse: allow synchronous FUSE_INIT
  fuse: zero initialize inode private data
  fuse: remove unused 'inode' parameter in fuse_passthrough_open
  virtio_fs: fix the hash table using in virtio_fs_enqueue_req()
  mm: remove BDI_CAP_WRITEBACK_ACCT
  fuse: use default writeback accounting
  virtio_fs: Remove redundant spinlock in virtio_fs_request_complete()
  fuse: remove unneeded offset assignment when filling write pages
  ...

1 files changed, 20 insertions, 2 deletions

diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index 122d6586e8d4..c13e1f9a2f12 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -235,6 +235,11 @@
  *
  *  7.44
  *  - add FUSE_NOTIFY_INC_EPOCH
+ *
+ *  7.45
+ *  - add FUSE_COPY_FILE_RANGE_64
+ *  - add struct fuse_copy_file_range_out
+ *  - add FUSE_NOTIFY_PRUNE
  */
 
 #ifndef _LINUX_FUSE_H
@@ -270,7 +275,7 @@
 #define FUSE_KERNEL_VERSION 7
 
 /** Minor version number of this interface */
-#define FUSE_KERNEL_MINOR_VERSION 44
+#define FUSE_KERNEL_MINOR_VERSION 45
 
 /** The node ID of the root inode */
 #define FUSE_ROOT_ID 1
@@ -657,6 +662,7 @@ enum fuse_opcode {
 	FUSE_SYNCFS		= 50,
 	FUSE_TMPFILE		= 51,
 	FUSE_STATX		= 52,
+	FUSE_COPY_FILE_RANGE_64	= 53,
 
 	/* CUSE specific operations */
 	CUSE_INIT		= 4096,
@@ -675,7 +681,7 @@ enum fuse_notify_code {
 	FUSE_NOTIFY_DELETE = 6,
 	FUSE_NOTIFY_RESEND = 7,
 	FUSE_NOTIFY_INC_EPOCH = 8,
-	FUSE_NOTIFY_CODE_MAX,
+	FUSE_NOTIFY_PRUNE = 9,
 };
 
 /* The read buffer is required to be at least 8k, but may be much larger */
@@ -1114,6 +1120,12 @@ struct fuse_notify_retrieve_in {
 	uint64_t	dummy4;
 };
 
+struct fuse_notify_prune_out {
+	uint32_t	count;
+	uint32_t	padding;
+	uint64_t	spare;
+};
+
 struct fuse_backing_map {
 	int32_t		fd;
 	uint32_t	flags;
@@ -1126,6 +1138,7 @@ struct fuse_backing_map {
 #define FUSE_DEV_IOC_BACKING_OPEN	_IOW(FUSE_DEV_IOC_MAGIC, 1, \
 					     struct fuse_backing_map)
 #define FUSE_DEV_IOC_BACKING_CLOSE	_IOW(FUSE_DEV_IOC_MAGIC, 2, uint32_t)
+#define FUSE_DEV_IOC_SYNC_INIT		_IO(FUSE_DEV_IOC_MAGIC, 3)
 
 struct fuse_lseek_in {
 	uint64_t	fh;
@@ -1148,6 +1161,11 @@ struct fuse_copy_file_range_in {
 	uint64_t	flags;
 };
 
+/* For FUSE_COPY_FILE_RANGE_64 */
+struct fuse_copy_file_range_out {
+	uint64_t	bytes_copied;
+};
+
 #define FUSE_SETUPMAPPING_FLAG_WRITE (1ull << 0)
 #define FUSE_SETUPMAPPING_FLAG_READ (1ull << 1)
 struct fuse_setupmapping_in {