block: fix typos in comments and strings in blk-core

This patch fixes multiple spelling mistakes in comments and documentation
in the file block/blk-core.c.

No functional changes intended.

Suggested-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: shechenglong <shechenglong@xfusion.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Author: shechenglong-fusion

block/blk-core.c

@@ -662,13 +662,13 @@ static void __submit_bio(struct bio *bio)
  *    bio_list of new bios to be added.  ->submit_bio() may indeed add some more
  *    bios through a recursive call to submit_bio_noacct.  If it did, we find a
  *    non-NULL value in bio_list and re-enter the loop from the top.
- *  - In this case we really did just take the bio of the top of the list (no
+ *  - In this case we really did just take the bio off the top of the list (no
  *    pretending) and so remove it from bio_list, and call into ->submit_bio()
  *    again.
  *
  * bio_list_on_stack[0] contains bios submitted by the current ->submit_bio.
  * bio_list_on_stack[1] contains bios that were submitted before the current
- *	->submit_bio, but that haven't been processed yet.
+ *	->submit_bio(), but that haven't been processed yet.
  */
 static void __submit_bio_noacct(struct bio *bio)
 {
@@ -743,8 +743,8 @@ void submit_bio_noacct_nocheck(struct bio *bio, bool split)
 	/*
 	 * We only want one ->submit_bio to be active at a time, else stack
 	 * usage with stacked devices could be a problem.  Use current->bio_list
-	 * to collect a list of requests submited by a ->submit_bio method while
-	 * it is active, and then process them after it returned.
+	 * to collect a list of requests submitted by a ->submit_bio method
+	 * while it is active, and then process them after it returned.
 	 */
 	if (current->bio_list) {
 		if (split)
@@ -901,7 +901,7 @@ static void bio_set_ioprio(struct bio *bio)
  *
  * submit_bio() is used to submit I/O requests to block devices.  It is passed a
  * fully set up &struct bio that describes the I/O that needs to be done.  The
- * bio will be send to the device described by the bi_bdev field.
+ * bio will be sent to the device described by the bi_bdev field.
  *
  * The success/failure status of the request, along with notification of
  * completion, is delivered asynchronously through the ->bi_end_io() callback
@@ -991,7 +991,7 @@ int iocb_bio_iopoll(struct kiocb *kiocb, struct io_comp_batch *iob,
 	 * point to a freshly allocated bio at this point.  If that happens
 	 * we have a few cases to consider:
 	 *
-	 *  1) the bio is beeing initialized and bi_bdev is NULL.  We can just
+	 *  1) the bio is being initialized and bi_bdev is NULL.  We can just
 	 *     simply nothing in this case
 	 *  2) the bio points to a not poll enabled device.  bio_poll will catch
 	 *     this and return 0