[PATCH] splice: call handle_ra_miss() on failure to lookup page



Notify the readahead logic of the missing page. Suggested by
Oleg Nesterov.

Signed-off-by: Jens Axboe <axboe@suse.de>

parent 7f9c51f0

fs/splice.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -301,6 +301,12 @@ __generic_file_splice_read(struct file in, loff_t ppos,
		*/
		page = find_get_page(mapping, index);
		if (!page) {
		/*
		* Make sure the read-ahead engine is notified
		* about this failure.
		*/
		handle_ra_miss(mapping, &in->f_ra, index);

		/*
		* page didn't exist, allocate one.
		*/