[PATCH] Mark mandatory elevator functions in the biodoc.txt

From: Nikanth Karthikesan
Date: Mon Jan 19 2009 - 10:56:41 EST

biodoc.txt mentions that elevator functions marked with * are mandatory, but
no function is marked with *.

Signed-off-by: Nikanth Karthikesan <knikanth@xxxxxxx>

diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt
index 3c5434c..5e51217 100644
--- a/Documentation/block/biodoc.txt
+++ b/Documentation/block/biodoc.txt
@@ -953,14 +953,14 @@ elevator_allow_merge_fn called whenever the block layer determines
results in some sort of conflict internally,
this hook allows it to do that.

-elevator_dispatch_fn fills the dispatch queue with ready requests.
+elevator_dispatch_fn* fills the dispatch queue with ready requests.
I/O schedulers are free to postpone requests by
not filling the dispatch queue unless @force
is non-zero. Once dispatched, I/O schedulers
are not allowed to manipulate the requests -
they belong to generic dispatch queue.

-elevator_add_req_fn called to add a new request into the scheduler
+elevator_add_req_fn* called to add a new request into the scheduler

elevator_queue_empty_fn returns true if the merge queue is empty.
Drivers shouldn't use this, but rather check
@@ -990,7 +990,7 @@ elevator_activate_req_fn Called when device driver first sees a request.
elevator_deactivate_req_fn Called when device driver decides to delay
a request by requeueing it.

elevator_exit_fn Allocate and free any elevator specific storage
for a queue.

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