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Commit 86aa5ac5 authored by Jens Axboe's avatar Jens Axboe
Browse files

[PATCH] splice: always call into page_cache_readahead() 



Don't try to guess what the read-ahead logic will do, allow it
to make its own decisions.

Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 9ae9d68c

fs/splice.c

+3 −5
Original line number Diff line number Diff line
@@ -289,11 +289,9 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, 
		nr_pages = PIPE_BUFFERS;



	/*

	 * Initiate read-ahead on this page range. however, don't call into

	 * read-ahead if this is a non-zero offset (we are likely doing small

	 * chunk splice and the page is already there) for a single page.

	 * Don't try to 2nd guess the read-ahead logic, call into

	 * page_cache_readahead() like the page cache reads would do.

	 */

	if (!loff || nr_pages > 1)

	page_cache_readahead(mapping, &in->f_ra, in, index, nr_pages);



	/*