Merge tag 'fuse-update-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse updates from Miklos Szeredi:

 - Improve performance of the io-uring transport by introducing buffer
   pools and zero-copy (Joanne)

 - Fix lots of bugs (Baokun Li)

 - Fix io-uring initialization issues (Joanne, Bernd)

 - More prep work for large folios (Joanne)

 - Don't limit buffered read to 128k (Jim Harris)

 - Fix zeroing of page end (dirtied with mmap) on file size extension
   (Jimmy Zuber)

 - Improve performance in certain cases with wake_up_sync() when queuing
   request (Xuewen Yan)

 - Misc fixes and cleanups (Xuewen Yan)

* tag 'fuse-update-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (35 commits)
  fuse: zero the partial EOF page when extending a file
  io_uring: Add missing include for ITER_SOURCE and ITER_DEST
  fuse: Fix the condition to enable over-io-uring
  fuse: invalidate the correct range after O_APPEND direct write
  selftests/fuse: test post-EOF page zeroing when a file is extended
  fuse: wake one waiter per freed slot when raising max_background
  fuse: use min_not_zero() in fuse_init_server_timeout()
  fuse: copy request headers via a stack buffer for io-uring
  fuse: give wakeup hints to the scheduler for synchronous requests
  fuse: check for NULL root inode in fuse_fill_super_submount
  fuse: reject a duplicate fd= mount option
  cuse: wait for pending RCU callbacks on module exit
  fuse: fix invalidate lock leak on open O_TRUNC DAX failure
  fuse: fix invalidate lock leak on setattr writeback failure
  fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free
  fuse: make dentry_tree_work static
  docs: fuse: document io-uring buffer pool and zero-copy uapi
  fuse: add zero-copy over io-uring
  fuse: support registered buffer pools in io-uring
  fuse: add io-uring buffer pools
  ...

1 files changed, 32 insertions, 6 deletions

diff --git a/include/linux/io_uring/cmd.h b/include/linux/io_uring/cmd.h
index 331dcbefe72f..42801f0b6456 100644
--- a/include/linux/io_uring/cmd.h
+++ b/include/linux/io_uring/cmd.h
@@ -91,6 +91,15 @@ struct io_br_sel io_uring_cmd_buffer_select(struct io_uring_cmd *ioucmd,
 bool io_uring_mshot_cmd_post_cqe(struct io_uring_cmd *ioucmd,
 				 struct io_br_sel *sel, unsigned int issue_flags);
 
+int io_buffer_register_request(struct io_uring_cmd *cmd, struct request *rq,
+			       void (*release)(void *), unsigned int index,
+			       unsigned int issue_flags);
+int io_buffer_register_bvec(struct io_uring_cmd *cmd, const struct bio_vec *bvs,
+			    unsigned int nr_bvecs, void (*release)(void *),
+			    void *priv, u8 dir, unsigned int index,
+			    unsigned int issue_flags);
+int io_buffer_unregister(struct io_uring_cmd *cmd, unsigned int index,
+			 unsigned int issue_flags);
 #else
 static inline int
 io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw,
@@ -133,6 +142,29 @@ static inline bool io_uring_mshot_cmd_post_cqe(struct io_uring_cmd *ioucmd,
 {
 	return true;
 }
+static inline int io_buffer_register_request(struct io_uring_cmd *cmd,
+					     struct request *rq,
+					     void (*release)(void *),
+					     unsigned int index,
+					     unsigned int issue_flags)
+{
+	return -EOPNOTSUPP;
+}
+static inline int io_buffer_register_bvec(struct io_uring_cmd *cmd,
+					  const struct bio_vec *bvs,
+					  unsigned int nr_bvecs,
+					  void (*release)(void *), void *priv,
+					  u8 dir, unsigned int index,
+					  unsigned int issue_flags)
+{
+	return -EOPNOTSUPP;
+}
+static inline int io_buffer_unregister(struct io_uring_cmd *cmd,
+				       unsigned int index,
+				       unsigned int issue_flags)
+{
+	return -EOPNOTSUPP;
+}
 #endif
 
 static inline struct io_uring_cmd *io_uring_cmd_from_tw(struct io_tw_req tw_req)
@@ -182,10 +214,4 @@ static inline void io_uring_cmd_done32(struct io_uring_cmd *ioucmd, s32 ret,
 	return __io_uring_cmd_done(ioucmd, ret, res2, issue_flags, true);
 }
 
-int io_buffer_register_bvec(struct io_uring_cmd *cmd, struct request *rq,
-			    void (*release)(void *), unsigned int index,
-			    unsigned int issue_flags);
-int io_buffer_unregister_bvec(struct io_uring_cmd *cmd, unsigned int index,
-			      unsigned int issue_flags);
-
 #endif /* _LINUX_IO_URING_CMD_H */