btrfs: rename btrfs_submit_bio() to btrfs_submit_bbio()

The function name is a bit misleading as it submits the btrfs_bio
(bbio), rename it so we can use btrfs_submit_bio() when an actual bio is
submitted.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/bio.c

@@ -53,7 +53,7 @@ void btrfs_bio_init(struct btrfs_bio *bbio, struct btrfs_fs_info *fs_info,
 
 /*
  * Allocate a btrfs_bio structure.  The btrfs_bio is the main I/O container for
- * btrfs, and is used for all I/O submitted through btrfs_submit_bio.
+ * btrfs, and is used for all I/O submitted through btrfs_submit_bbio().
  *
  * Just like the underlying bio_alloc_bioset it will not fail as it is backed by
  * a mempool.
@@ -211,7 +211,7 @@ static void btrfs_end_repair_bio(struct btrfs_bio *repair_bbio,
 			goto done;
 		}
 
-		btrfs_submit_bio(repair_bbio, mirror);
+		btrfs_submit_bbio(repair_bbio, mirror);
 		return;
 	}
 
@@ -280,7 +280,7 @@ static struct btrfs_failed_bio *repair_one_sector(struct btrfs_bio *failed_bbio,
 
 	mirror = next_repair_mirror(fbio, failed_bbio->mirror_num);
 	btrfs_debug(fs_info, "submitting repair read to mirror %d", mirror);
-	btrfs_submit_bio(repair_bbio, mirror);
+	btrfs_submit_bbio(repair_bbio, mirror);
 	return fbio;
 }
 
@@ -777,7 +777,7 @@ static bool btrfs_submit_chunk(struct btrfs_bio *bbio, int mirror_num)
 	return true;
 }
 
-void btrfs_submit_bio(struct btrfs_bio *bbio, int mirror_num)
+void btrfs_submit_bbio(struct btrfs_bio *bbio, int mirror_num)
 {
 	/* If bbio->inode is not populated, its file_offset must be 0. */
 	ASSERT(bbio->inode || bbio->file_offset == 0);
@@ -789,7 +789,7 @@ void btrfs_submit_bio(struct btrfs_bio *bbio, int mirror_num)
 /*
  * Submit a repair write.
  *
- * This bypasses btrfs_submit_bio deliberately, as that writes all copies in a
+ * This bypasses btrfs_submit_bbio() deliberately, as that writes all copies in a
  * RAID setup.  Here we only want to write the one bad copy, so we do the
  * mapping ourselves and submit the bio directly.
  *

fs/btrfs/bio.h

@@ -29,7 +29,7 @@ typedef void (*btrfs_bio_end_io_t)(struct btrfs_bio *bbio);
 
 /*
  * Highlevel btrfs I/O structure.  It is allocated by btrfs_bio_alloc and
- * passed to btrfs_submit_bio for mapping to the physical devices.
+ * passed to btrfs_submit_bbio() for mapping to the physical devices.
  */
 struct btrfs_bio {
 	/*
@@ -42,7 +42,7 @@ struct btrfs_bio {
 	union {
 		/*
 		 * For data reads: checksumming and original I/O information.
-		 * (for internal use in the btrfs_submit_bio machinery only)
+		 * (for internal use in the btrfs_submit_bbio() machinery only)
 		 */
 		struct {
 			u8 *csum;
@@ -104,7 +104,7 @@ void btrfs_bio_end_io(struct btrfs_bio *bbio, blk_status_t status);
 /* Submit using blkcg_punt_bio_submit. */
 #define REQ_BTRFS_CGROUP_PUNT			REQ_FS_PRIVATE
 
-void btrfs_submit_bio(struct btrfs_bio *bbio, int mirror_num);
+void btrfs_submit_bbio(struct btrfs_bio *bbio, int mirror_num);
 void btrfs_submit_repair_write(struct btrfs_bio *bbio, int mirror_num, bool dev_replace);
 int btrfs_repair_io_failure(struct btrfs_fs_info *fs_info, u64 ino, u64 start,
 			    u64 length, u64 logical, struct folio *folio,

fs/btrfs/compression.c

@@ -395,7 +395,7 @@ void btrfs_submit_compressed_write(struct btrfs_ordered_extent *ordered,
 	cb->bbio.ordered = ordered;
 	btrfs_add_compressed_bio_folios(cb);
 
-	btrfs_submit_bio(&cb->bbio, 0);
+	btrfs_submit_bbio(&cb->bbio, 0);
 }
 
 /*
@@ -630,7 +630,7 @@ void btrfs_submit_compressed_read(struct btrfs_bio *bbio)
 	if (memstall)
 		psi_memstall_leave(&pflags);
 
-	btrfs_submit_bio(&cb->bbio, 0);
+	btrfs_submit_bbio(&cb->bbio, 0);
 	return;
 
 out_free_compressed_pages:

fs/btrfs/direct-io.c

@@ -726,7 +726,7 @@ static void btrfs_dio_submit_io(const struct iomap_iter *iter, struct bio *bio,
 		}
 	}
 
-	btrfs_submit_bio(bbio, 0);
+	btrfs_submit_bbio(bbio, 0);
 }
 
 static const struct iomap_ops btrfs_dio_iomap_ops = {

fs/btrfs/extent_io.c

@@ -117,7 +117,7 @@ static void submit_one_bio(struct btrfs_bio_ctrl *bio_ctrl)
 	    bio_ctrl->compress_type != BTRFS_COMPRESS_NONE)
 		btrfs_submit_compressed_read(bbio);
 	else
-		btrfs_submit_bio(bbio, 0);
+		btrfs_submit_bbio(bbio, 0);
 
 	/* The bbio is owned by the end_io handler now */
 	bio_ctrl->bbio = NULL;
@@ -1800,7 +1800,7 @@ static noinline_for_stack void write_one_eb(struct extent_buffer *eb,
 			folio_unlock(folio);
 		}
 	}
-	btrfs_submit_bio(bbio, 0);
+	btrfs_submit_bbio(bbio, 0);
 }
 
 /*
@@ -3572,7 +3572,7 @@ int read_extent_buffer_pages(struct extent_buffer *eb, int wait, int mirror_num,
 			ASSERT(ret);
 		}
 	}
-	btrfs_submit_bio(bbio, mirror_num);
+	btrfs_submit_bbio(bbio, mirror_num);
 
 done:
 	if (wait == WAIT_COMPLETE) {

fs/btrfs/inode.c

@@ -9152,7 +9152,7 @@ int btrfs_encoded_read_regular_fill_pages(struct btrfs_inode *inode,
 
 		if (bio_add_page(&bbio->bio, pages[i], bytes, 0) < bytes) {
 			atomic_inc(&priv.pending);
-			btrfs_submit_bio(bbio, 0);
+			btrfs_submit_bbio(bbio, 0);
 
 			bbio = btrfs_bio_alloc(BIO_MAX_VECS, REQ_OP_READ, fs_info,
 					       btrfs_encoded_read_endio, &priv);
@@ -9167,7 +9167,7 @@ int btrfs_encoded_read_regular_fill_pages(struct btrfs_inode *inode,
 	} while (disk_io_size);
 
 	atomic_inc(&priv.pending);
-	btrfs_submit_bio(bbio, 0);
+	btrfs_submit_bbio(bbio, 0);
 
 	if (atomic_dec_return(&priv.pending))
 		io_wait_event(priv.wait, !atomic_read(&priv.pending));

fs/btrfs/scrub.c

@@ -838,7 +838,7 @@ static void scrub_stripe_submit_repair_read(struct scrub_stripe *stripe,
 			     bbio->bio.bi_iter.bi_size >= blocksize)) {
 			ASSERT(bbio->bio.bi_iter.bi_size);
 			atomic_inc(&stripe->pending_io);
-			btrfs_submit_bio(bbio, mirror);
+			btrfs_submit_bbio(bbio, mirror);
 			if (wait)
 				wait_scrub_stripe_io(stripe);
 			bbio = NULL;
@@ -857,7 +857,7 @@ static void scrub_stripe_submit_repair_read(struct scrub_stripe *stripe,
 	if (bbio) {
 		ASSERT(bbio->bio.bi_iter.bi_size);
 		atomic_inc(&stripe->pending_io);
-		btrfs_submit_bio(bbio, mirror);
+		btrfs_submit_bbio(bbio, mirror);
 		if (wait)
 			wait_scrub_stripe_io(stripe);
 	}
@@ -1683,7 +1683,7 @@ static void scrub_submit_extent_sector_read(struct scrub_ctx *sctx,
 		     bbio->bio.bi_iter.bi_size >= stripe_len)) {
 			ASSERT(bbio->bio.bi_iter.bi_size);
 			atomic_inc(&stripe->pending_io);
-			btrfs_submit_bio(bbio, mirror);
+			btrfs_submit_bbio(bbio, mirror);
 			bbio = NULL;
 		}
 
@@ -1720,7 +1720,7 @@ static void scrub_submit_extent_sector_read(struct scrub_ctx *sctx,
 	if (bbio) {
 		ASSERT(bbio->bio.bi_iter.bi_size);
 		atomic_inc(&stripe->pending_io);
-		btrfs_submit_bio(bbio, mirror);
+		btrfs_submit_bbio(bbio, mirror);
 	}
 
 	if (atomic_dec_and_test(&stripe->pending_io)) {
@@ -1776,7 +1776,7 @@ static void scrub_submit_initial_read(struct scrub_ctx *sctx,
 
 		mirror = calc_next_mirror(mirror, num_copies);
 	}
-	btrfs_submit_bio(bbio, mirror);
+	btrfs_submit_bbio(bbio, mirror);
 }
 
 static bool stripe_has_metadata_error(struct scrub_stripe *stripe)