rename the generic fsync implementations

We don't name our generic fsync implementations very well currently.
The no-op implementation for in-memory filesystems currently is called
simple_sync_file which doesn't make too much sense to start with,
the the generic one for simple filesystems is called simple_fsync
which can lead to some confusion.

This patch renames the generic file fsync method to generic_file_fsync
to match the other generic_file_* routines it is supposed to be used
with, and the no-op implementation to noop_fsync to make it obvious
what to expect.  In addition add some documentation for both methods.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/qnx4/dir.c b/fs/qnx4/dir.c
index 3d3fd4692133..6e8fc62b40a8 100644
--- a/fs/qnx4/dir.c
+++ b/fs/qnx4/dir.c
@@ -80,7 +80,7 @@ const struct file_operations qnx4_dir_operations =
         .llseek         = generic_file_llseek,
         .read           = generic_read_dir,
         .readdir        = qnx4_readdir,
-        .fsync          = simple_fsync,
+        .fsync          = generic_file_fsync,
 };
 
 const struct inode_operations qnx4_dir_inode_operations =