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:
* If in nonblock mode then dont block on waiting
* for an in-flight io page
*/
- if (flags & SPLICE_F_NONBLOCK)
- break;
-
- lock_page(page);
+ if (flags & SPLICE_F_NONBLOCK) {
+ if (TestSetPageLocked(page))
+ break;
+ } else
+ lock_page(page);
/*
* page was truncated, stop here. if this isn't the