virtiofsd: Remove unused enum fuse_buf_copy_flags

Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

1 files changed, 2 insertions, 33 deletions

diff --git a/tools/virtiofsd/fuse_lowlevel.h b/tools/virtiofsd/fuse_lowlevel.h
index 12a84b4..2fa225d 100644
--- a/tools/virtiofsd/fuse_lowlevel.h
+++ b/tools/virtiofsd/fuse_lowlevel.h
@@ -1363,33 +1363,6 @@ int fuse_reply_buf(fuse_req_t req, const char *buf, size_t size);
 /**
  * Reply with data copied/moved from buffer(s)
  *
- * Zero copy data transfer ("splicing") will be used under
- * the following circumstances:
- *
- * 1. FUSE_CAP_SPLICE_WRITE is set in fuse_conn_info.want, and
- * 2. the kernel supports splicing from the fuse device
- *    (FUSE_CAP_SPLICE_WRITE is set in fuse_conn_info.capable), and
- * 3. *flags* does not contain FUSE_BUF_NO_SPLICE
- * 4. The amount of data that is provided in file-descriptor backed
- *    buffers (i.e., buffers for which bufv[n].flags == FUSE_BUF_FD)
- *    is at least twice the page size.
- *
- * In order for SPLICE_F_MOVE to be used, the following additional
- * conditions have to be fulfilled:
- *
- * 1. FUSE_CAP_SPLICE_MOVE is set in fuse_conn_info.want, and
- * 2. the kernel supports it (i.e, FUSE_CAP_SPLICE_MOVE is set in
-      fuse_conn_info.capable), and
- * 3. *flags* contains FUSE_BUF_SPLICE_MOVE
- *
- * Note that, if splice is used, the data is actually spliced twice:
- * once into a temporary pipe (to prepend header data), and then again
- * into the kernel. If some of the provided buffers are memory-backed,
- * the data in them is copied in step one and spliced in step two.
- *
- * The FUSE_BUF_SPLICE_FORCE_SPLICE and FUSE_BUF_SPLICE_NONBLOCK flags
- * are silently ignored.
- *
  * Possible requests:
  *   read, readdir, getxattr, listxattr
  *
@@ -1400,11 +1373,9 @@ int fuse_reply_buf(fuse_req_t req, const char *buf, size_t size);
  *
  * @param req request handle
  * @param bufv buffer vector
- * @param flags flags controlling the copy
  * @return zero for success, -errno for failure to send reply
  */
-int fuse_reply_data(fuse_req_t req, struct fuse_bufvec *bufv,
-                    enum fuse_buf_copy_flags flags);
+int fuse_reply_data(fuse_req_t req, struct fuse_bufvec *bufv);
 
 /**
  * Reply with data vector
@@ -1705,12 +1676,10 @@ int fuse_lowlevel_notify_delete(struct fuse_session *se, fuse_ino_t parent,
  * @param ino the inode number
  * @param offset the starting offset into the file to store to
  * @param bufv buffer vector
- * @param flags flags controlling the copy
  * @return zero for success, -errno for failure
  */
 int fuse_lowlevel_notify_store(struct fuse_session *se, fuse_ino_t ino,
-                               off_t offset, struct fuse_bufvec *bufv,
-                               enum fuse_buf_copy_flags flags);
+                               off_t offset, struct fuse_bufvec *bufv);
 
 /*
  * Utility functions