fuse: Pass correct lend value to filemap_write_and_wait_range()

The acceptable maximum value of lend parameter in
filemap_write_and_wait_range() is LLONG_MAX rather than -1. And there is
also some logic depending on LLONG_MAX check in write_cache_pages(). So
let's pass LLONG_MAX to filemap_write_and_wait_range() in
fuse_writeback_range() instead.

Fixes: 59bda8e ("fuse: flush extending writes")
Signed-off-by: Xie Yongji <[email protected]>
Cc: <[email protected]> # v5.15
Signed-off-by: Miklos Szeredi <[email protected]>

Author: YongjiXie

fs/fuse/file.c

@@ -2910,7 +2910,7 @@ fuse_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 
 static int fuse_writeback_range(struct inode *inode, loff_t start, loff_t end)
 {
-	int err = filemap_write_and_wait_range(inode->i_mapping, start, -1);
+	int err = filemap_write_and_wait_range(inode->i_mapping, start, LLONG_MAX);
 
 	if (!err)
 		fuse_sync_writes(inode);