btrfs: check-integrity: split submit_bio from btrfsic checking

Require a separate call to the integrity checking helpers from the
actual bio submission.
Reviewed-by: NQu Wenruo <wqu@suse.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NDavid Sterba <dsterba@suse.com>
Signed-off-by: NDavid Sterba <dsterba@suse.com>

fs/btrfs/check-integrity.c

@@ -2700,7 +2700,7 @@ static void btrfsic_check_flush_bio(struct bio *bio, struct btrfsic_dev_state *d
 	}
 }
 
-static void __btrfsic_submit_bio(struct bio *bio)
+void btrfsic_check_bio(struct bio *bio)
 {
 	struct btrfsic_dev_state *dev_state;
 
@@ -2722,18 +2722,6 @@ static void __btrfsic_submit_bio(struct bio *bio)
 	mutex_unlock(&btrfsic_mutex);
 }
 
-void btrfsic_submit_bio(struct bio *bio)
-{
-	__btrfsic_submit_bio(bio);
-	submit_bio(bio);
-}
-
-int btrfsic_submit_bio_wait(struct bio *bio)
-{
-	__btrfsic_submit_bio(bio);
-	return submit_bio_wait(bio);
-}
-
 int btrfsic_mount(struct btrfs_fs_info *fs_info,
 		  struct btrfs_fs_devices *fs_devices,
 		  int including_extent_data, u32 print_mask)

fs/btrfs/check-integrity.h

@@ -7,11 +7,9 @@
 #define BTRFS_CHECK_INTEGRITY_H
 
 #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
-void btrfsic_submit_bio(struct bio *bio);
-int btrfsic_submit_bio_wait(struct bio *bio);
+void btrfsic_check_bio(struct bio *bio);
 #else
-#define btrfsic_submit_bio submit_bio
-#define btrfsic_submit_bio_wait submit_bio_wait
+static inline void btrfsic_check_bio(struct bio *bio) { }
 #endif
 
 int btrfsic_mount(struct btrfs_fs_info *fs_info,

fs/btrfs/disk-io.c

@@ -4179,7 +4179,8 @@ static int write_dev_supers(struct btrfs_device *device,
 		if (i == 0 && !btrfs_test_opt(device->fs_info, NOBARRIER))
 			bio->bi_opf |= REQ_FUA;
 
-		btrfsic_submit_bio(bio);
+		btrfsic_check_bio(bio);
+		submit_bio(bio);
 
 		if (btrfs_advance_sb_log(device, i))
 			errors++;
@@ -4292,7 +4293,8 @@ static void write_dev_flush(struct btrfs_device *device)
 	init_completion(&device->flush_wait);
 	bio->bi_private = &device->flush_wait;
 
-	btrfsic_submit_bio(bio);
+	btrfsic_check_bio(bio);
+	submit_bio(bio);
 	set_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state);
 }
 

fs/btrfs/extent_io.c

@@ -2368,7 +2368,8 @@ static int repair_io_failure(struct btrfs_fs_info *fs_info, u64 ino, u64 start,
 	bio->bi_opf = REQ_OP_WRITE | REQ_SYNC;
 	bio_add_page(bio, page, length, pg_offset);
 
-	if (btrfsic_submit_bio_wait(bio)) {
+	btrfsic_check_bio(bio);
+	if (submit_bio_wait(bio)) {
 		/* try to remap that extent elsewhere? */
 		btrfs_bio_counter_dec(fs_info);
 		bio_put(bio);

fs/btrfs/scrub.c

@@ -1475,7 +1475,8 @@ static void scrub_recheck_block(struct btrfs_fs_info *fs_info,
 		bio->bi_iter.bi_sector = sector->physical >> 9;
 		bio->bi_opf = REQ_OP_READ;
 
-		if (btrfsic_submit_bio_wait(bio)) {
+		btrfsic_check_bio(bio);
+		if (submit_bio_wait(bio)) {
 			sector->io_error = 1;
 			sblock->no_io_error_seen = 0;
 		}
@@ -1559,7 +1560,8 @@ static int scrub_repair_sector_from_good_copy(struct scrub_block *sblock_bad,
 			return -EIO;
 		}
 
-		if (btrfsic_submit_bio_wait(bio)) {
+		btrfsic_check_bio(bio);
+		if (submit_bio_wait(bio)) {
 			btrfs_dev_stat_inc_and_print(sector_bad->dev,
 				BTRFS_DEV_STAT_WRITE_ERRS);
 			atomic64_inc(&fs_info->dev_replace.num_write_errors);
@@ -1715,7 +1717,8 @@ static void scrub_wr_submit(struct scrub_ctx *sctx)
 	 * orders the requests before sending them to the driver which
 	 * doubled the write performance on spinning disks when measured
 	 * with Linux 3.5 */
-	btrfsic_submit_bio(sbio->bio);
+	btrfsic_check_bio(sbio->bio);
+	submit_bio(sbio->bio);
 
 	if (btrfs_is_zoned(sctx->fs_info))
 		sctx->write_pointer = sbio->physical + sbio->sector_count *
@@ -2049,7 +2052,8 @@ static void scrub_submit(struct scrub_ctx *sctx)
 	sbio = sctx->bios[sctx->curr];
 	sctx->curr = -1;
 	scrub_pending_bio_inc(sctx);
-	btrfsic_submit_bio(sbio->bio);
+	btrfsic_check_bio(sbio->bio);
+	submit_bio(sbio->bio);
 }
 
 static int scrub_add_sector_to_rd_bio(struct scrub_ctx *sctx,

fs/btrfs/volumes.c

@@ -6742,7 +6742,8 @@ static void submit_stripe_bio(struct btrfs_io_context *bioc, struct bio *bio,
 
 	btrfs_bio_counter_inc_noblocked(fs_info);
 
-	btrfsic_submit_bio(bio);
+	btrfsic_check_bio(bio);
+	submit_bio(bio);
 }
 
 static void bioc_error(struct btrfs_io_context *bioc, struct bio *bio, u64 logical)