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cfq-iosched: move cfqq initialization out of cfq_find_alloc_queue()
author
Jens Axboe
<jens.axboe@oracle.com>
Fri, 26 Jun 2009 08:44:34 +0000
(10:44 +0200)
committer
Jens Axboe
<jens.axboe@oracle.com>
Wed, 1 Jul 2009 08:56:25 +0000
(10:56 +0200)
We're going to be needing that init code outside of that function
to get rid of the __GFP_NOFAIL in cfqq allocation.
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
block/cfq-iosched.c
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diff --git
a/block/cfq-iosched.c
b/block/cfq-iosched.c
index 833ec18eaa63e2a20b847797c99511e41314b474..c760ae7019ddaa863e1e7df47ed57d0824c0abc6 100644
(file)
--- a/
block/cfq-iosched.c
+++ b/
block/cfq-iosched.c
@@
-1641,6
+1641,26
@@
static void cfq_ioc_set_ioprio(struct io_context *ioc)
ioc->ioprio_changed = 0;
}
ioc->ioprio_changed = 0;
}
+static void cfq_init_cfqq(struct cfq_data *cfqd, struct cfq_queue *cfqq,
+ pid_t pid, int is_sync)
+{
+ RB_CLEAR_NODE(&cfqq->rb_node);
+ RB_CLEAR_NODE(&cfqq->p_node);
+ INIT_LIST_HEAD(&cfqq->fifo);
+
+ atomic_set(&cfqq->ref, 0);
+ cfqq->cfqd = cfqd;
+
+ cfq_mark_cfqq_prio_changed(cfqq);
+
+ if (is_sync) {
+ if (!cfq_class_idle(cfqq))
+ cfq_mark_cfqq_idle_window(cfqq);
+ cfq_mark_cfqq_sync(cfqq);
+ }
+ cfqq->pid = pid;
+}
+
static struct cfq_queue *
cfq_find_alloc_queue(struct cfq_data *cfqd, int is_sync,
struct io_context *ioc, gfp_t gfp_mask)
static struct cfq_queue *
cfq_find_alloc_queue(struct cfq_data *cfqd, int is_sync,
struct io_context *ioc, gfp_t gfp_mask)
@@
-1678,23
+1698,8
@@
retry:
goto out;
}
goto out;
}
- RB_CLEAR_NODE(&cfqq->rb_node);
- RB_CLEAR_NODE(&cfqq->p_node);
- INIT_LIST_HEAD(&cfqq->fifo);
-
- atomic_set(&cfqq->ref, 0);
- cfqq->cfqd = cfqd;
-
- cfq_mark_cfqq_prio_changed(cfqq);
-
+ cfq_init_cfqq(cfqd, cfqq, current->pid, is_sync);
cfq_init_prio_data(cfqq, ioc);
cfq_init_prio_data(cfqq, ioc);
-
- if (is_sync) {
- if (!cfq_class_idle(cfqq))
- cfq_mark_cfqq_idle_window(cfqq);
- cfq_mark_cfqq_sync(cfqq);
- }
- cfqq->pid = current->pid;
cfq_log_cfqq(cfqd, cfqq, "alloced");
}
cfq_log_cfqq(cfqd, cfqq, "alloced");
}
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