WordPress at a glance
filter is not described

http_request_redirection_count filter-hook . WP 2.7.0

Filters the number of redirects allowed during an HTTP request.

Usage

add_filter( 'http_request_redirection_count', 'filter_function_name_9480' );
function filter_function_name_9480( $redirect_count ){
	// filter...

	return $redirect_count;
}
$redirect_count(int)
Number of redirects allowed.
Default: 5

Where the hook is called

WP_Http::request()
wp-includes/class-http.php 166
'redirection' => apply_filters( 'http_request_redirection_count', 5 ),

Where the hook is used (in WP core)

Does not used.