Account I/O block times for the stock readahead, too.
Signed-off-by: Fengguang Wu <[EMAIL PROTECTED]>
---
mm/readahead.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- linux-2.6.21-rc3-mm2.orig/mm/readahead.c
+++ linux-2.6.21-rc3-mm2/mm/readahead.c
@@ -1756,15 +1756,15 @@ EXPORT_SYMBOL_GPL(page_cache_readahead_a
*/
void readahead_cache_hit(struct file_ra_state *ra, struct page *page)
{
- if (!prefer_adaptive_readahead())
- return;
-
if (PageActive(page) || PageReferenced(page))
return;
if (!PageUptodate(page))
ra_account(ra, RA_EVENT_IO_BLOCK, 1);
+ if (!prefer_adaptive_readahead())
+ return;
+
if (!ra_has_index(ra, page->index))
return;
--
-
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