[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: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fs/splice.c b/fs/splice.c
index 2282650..12f2828 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -289,12 +289,10 @@
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);
+ page_cache_readahead(mapping, &in->f_ra, in, index, nr_pages);
/*
* Now fill in the holes: