Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>

block/blk-cgroup.c

@@ -868,7 +868,7 @@ static void blkio_update_policy_rule(struct blkio_policy_node *oldpn,
 }
 
 /*
- * Some rules/values in blkg have changed. Propogate those to respective
+ * Some rules/values in blkg have changed. Propagate those to respective
  * policies.
  */
 static void blkio_update_blkg_policy(struct blkio_cgroup *blkcg,
@@ -903,7 +903,7 @@ static void blkio_update_blkg_policy(struct blkio_cgroup *blkcg,
 }
 
 /*
- * A policy node rule has been updated. Propogate this update to all the
+ * A policy node rule has been updated. Propagate this update to all the
  * block groups which might be affected by this update.
  */
 static void blkio_update_policy_node_blkg(struct blkio_cgroup *blkcg,

block/blk-core.c

@@ -1184,7 +1184,7 @@ static bool bio_attempt_front_merge(struct request_queue *q,
 
 /*
  * Attempts to merge with the plugged list in the current process. Returns
- * true if merge was succesful, otherwise false.
+ * true if merge was successful, otherwise false.
  */
 static bool attempt_plug_merge(struct task_struct *tsk, struct request_queue *q,
 			       struct bio *bio)

block/blk-throttle.c

@@ -916,7 +916,7 @@ static void throtl_update_blkio_group_common(struct throtl_data *td,
 /*
  * For all update functions, key should be a valid pointer because these
  * update functions are called under blkcg_lock, that means, blkg is
- * valid and in turn key is valid. queue exit path can not race becuase
+ * valid and in turn key is valid. queue exit path can not race because
  * of blkcg_lock
  *
  * Can not take queue lock in update functions as queue lock under blkcg_lock

block/blk.h

@@ -32,7 +32,7 @@ enum rq_atomic_flags {
 
 /*
  * EH timer and IO completion will both attempt to 'grab' the request, make
- * sure that only one of them suceeds
+ * sure that only one of them succeeds
  */
 static inline int blk_mark_rq_complete(struct request *rq)
 {

block/cfq-iosched.c

@@ -888,7 +888,7 @@ cfq_group_notify_queue_add(struct cfq_data *cfqd, struct cfq_group *cfqg)
 	/*
 	 * Currently put the group at the end. Later implement something
 	 * so that groups get lesser vtime based on their weights, so that
-	 * if group does not loose all if it was not continously backlogged.
+	 * if group does not loose all if it was not continuously backlogged.
 	 */
 	n = rb_last(&st->rb);
 	if (n) {

block/genhd.c

@@ -739,7 +739,7 @@ void __init printk_all_partitions(void)
 
 		/*
 		 * Don't show empty devices or things that have been
-		 * surpressed
+		 * suppressed
 		 */
 		if (get_capacity(disk) == 0 ||
 		    (disk->flags & GENHD_FL_SUPPRESS_PARTITION_INFO))