On Sat, Jan 14 2006, Chuck Ebbert wrote:
In-Reply-To: <20060113174914.7907bf2c.akpm@xxxxxxxx>
On Fri, 13 Jan 2006, Andrew Morton wrote:
OK. And I assume that AS wasn't compiled, so that's why it fell back?
As of 2.6.15 you need to use "anticipatory" instead of "as".
Maybe this patch would help?
Signed-off-by: Chuck Ebbert <76306.1226@xxxxxxxxxxxxxx>
--- 2.6.15a.orig/block/elevator.c
+++ 2.6.15a/block/elevator.c
@@ -150,6 +150,13 @@ static void elevator_setup_default(void)
if (!chosen_elevator[0])
strcpy(chosen_elevator, CONFIG_DEFAULT_IOSCHED);
+ /*
+ * Be backwards-compatible with previous kernels, so users
+ * won't get the wrong elevator.
+ */
+ if (!strcmp(chosen_elevator, "as"))
+ strcpy(chosen_elevator, "anticipatory");
+
/*
* If the given scheduler is not available, fall back to no-op.
*/
We probably should apply this, since it used to be 'as'.