[PATCH] io/storage: Documentation update to as-iosched.txt

Documentation update, adding references to CFQ scheduler and to another document about selecting IO Schedulers. Signed-off-by: Filipe Lautert <[email protected]> Cc: Jens Axboe <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
ambv · Dec 7, 2006 · 49033c8 · 49033c8
1 parent 593be07
commit 49033c8
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/Documentation/block/as-iosched.txt b/Documentation/block/as-iosched.txt
@@ -24,8 +24,10 @@ very similar behavior to the deadline IO scheduler.
 Selecting IO schedulers
 -----------------------
 To choose IO schedulers at boot time, use the argument 'elevator=deadline'.
-'noop' and 'as' (the default) are also available. IO schedulers are assigned
-globally at boot time only presently.
+'noop', 'as' and 'cfq' (the default) are also available. IO schedulers are
+assigned globally at boot time only presently. It's also possible to change
+the IO scheduler for a determined device on the fly, as described in
+Documentation/block/switching-sched.txt.
 
 
 Anticipatory IO scheduler Policies