btrfs: remove the fs_info argument to btrfs_submit_bio

btrfs_submit_bio can derive it trivially from bbio->inode, so stop
bothering in the callers.
Reviewed-by: NJosef Bacik <josef@toxicpanda.com>
Reviewed-by: NJohannes Thumshirn <johannes.thumshirn@wdc.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/bio.c

@@ -155,7 +155,7 @@ static void btrfs_end_repair_bio(struct btrfs_bio *repair_bbio,
 			goto done;
 		}
 
-		btrfs_submit_bio(fs_info, &repair_bbio->bio, mirror);
+		btrfs_submit_bio(&repair_bbio->bio, mirror);
 		return;
 	}
 
@@ -223,7 +223,7 @@ 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(fs_info, repair_bio, mirror);
+	btrfs_submit_bio(repair_bio, mirror);
 	return fbio;
 }
 
@@ -600,10 +600,10 @@ static bool btrfs_wq_submit_bio(struct btrfs_bio *bbio,
 	return true;
 }
 
-static bool btrfs_submit_chunk(struct btrfs_fs_info *fs_info, struct bio *bio,
-			       int mirror_num)
+static bool btrfs_submit_chunk(struct bio *bio, int mirror_num)
 {
 	struct btrfs_bio *bbio = btrfs_bio(bio);
+	struct btrfs_fs_info *fs_info = bbio->inode->root->fs_info;
 	struct btrfs_bio *orig_bbio = bbio;
 	u64 logical = bio->bi_iter.bi_sector << 9;
 	u64 length = bio->bi_iter.bi_size;
@@ -676,9 +676,9 @@ static bool btrfs_submit_chunk(struct btrfs_fs_info *fs_info, struct bio *bio,
 	return true;
 }
 
-void btrfs_submit_bio(struct btrfs_fs_info *fs_info, struct bio *bio, int mirror_num)
+void btrfs_submit_bio(struct bio *bio, int mirror_num)
 {
-	while (!btrfs_submit_chunk(fs_info, bio, mirror_num))
+	while (!btrfs_submit_chunk(bio, mirror_num))
 		;
 }
 

fs/btrfs/bio.h

@@ -88,8 +88,7 @@ static inline void btrfs_bio_end_io(struct btrfs_bio *bbio, blk_status_t status)
 /* Bio only refers to one ordered extent. */
 #define REQ_BTRFS_ONE_ORDERED			REQ_DRV
 
-void btrfs_submit_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
-		      int mirror_num);
+void btrfs_submit_bio(struct bio *bio, int mirror_num);
 int btrfs_repair_io_failure(struct btrfs_fs_info *fs_info, u64 ino, u64 start,
 			    u64 length, u64 logical, struct page *page,
 			    unsigned int pg_offset, int mirror_num);

fs/btrfs/compression.c

@@ -402,7 +402,7 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start,
 
 		if (submit) {
 			ASSERT(bio->bi_iter.bi_size);
-			btrfs_submit_bio(fs_info, bio, 0);
+			btrfs_submit_bio(bio, 0);
 			bio = NULL;
 		}
 		cond_resched();
@@ -698,7 +698,7 @@ void btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
 	btrfs_bio(comp_bio)->file_offset = file_offset;
 
 	ASSERT(comp_bio->bi_iter.bi_size);
-	btrfs_submit_bio(fs_info, comp_bio, mirror_num);
+	btrfs_submit_bio(comp_bio, mirror_num);
 	return;
 
 fail:

fs/btrfs/disk-io.c

@@ -702,7 +702,7 @@ int btrfs_validate_metadata_buffer(struct btrfs_bio *bbio,
 void btrfs_submit_metadata_bio(struct btrfs_inode *inode, struct bio *bio, int mirror_num)
 {
 	bio->bi_opf |= REQ_META;
-	btrfs_submit_bio(inode->root->fs_info, bio, mirror_num);
+	btrfs_submit_bio(bio, mirror_num);
 }
 
 #ifdef CONFIG_MIGRATION

fs/btrfs/inode.c

@@ -2697,14 +2697,12 @@ blk_status_t btrfs_extract_ordered_extent(struct btrfs_bio *bbio)
 
 void btrfs_submit_data_write_bio(struct btrfs_inode *inode, struct bio *bio, int mirror_num)
 {
-	btrfs_submit_bio(inode->root->fs_info, bio, mirror_num);
+	btrfs_submit_bio(bio, mirror_num);
 }
 
 void btrfs_submit_data_read_bio(struct btrfs_inode *inode, struct bio *bio,
 			int mirror_num, enum btrfs_compression_type compress_type)
 {
-	struct btrfs_fs_info *fs_info = inode->root->fs_info;
-
 	if (compress_type != BTRFS_COMPRESS_NONE) {
 		/*
 		 * btrfs_submit_compressed_read will handle completing the bio
@@ -2714,7 +2712,7 @@ void btrfs_submit_data_read_bio(struct btrfs_inode *inode, struct bio *bio,
 		return;
 	}
 
-	btrfs_submit_bio(fs_info, bio, mirror_num);
+	btrfs_submit_bio(bio, mirror_num);
 }
 
 /*
@@ -7795,7 +7793,7 @@ static void btrfs_dio_submit_io(const struct iomap_iter *iter, struct bio *bio,
 	dip->bytes = bio->bi_iter.bi_size;
 
 	dio_data->submitted += bio->bi_iter.bi_size;
-	btrfs_submit_bio(btrfs_sb(iter->inode->i_sb), bio, 0);
+	btrfs_submit_bio(bio, 0);
 }
 
 static const struct iomap_ops btrfs_dio_iomap_ops = {
@@ -9960,7 +9958,6 @@ int btrfs_encoded_read_regular_fill_pages(struct btrfs_inode *inode,
 					  u64 file_offset, u64 disk_bytenr,
 					  u64 disk_io_size, struct page **pages)
 {
-	struct btrfs_fs_info *fs_info = inode->root->fs_info;
 	struct btrfs_encoded_read_private priv = {
 		.inode = inode,
 		.file_offset = file_offset,
@@ -9990,7 +9987,7 @@ int btrfs_encoded_read_regular_fill_pages(struct btrfs_inode *inode,
 			if (!bytes ||
 			    bio_add_page(bio, pages[i], bytes, 0) < bytes) {
 				atomic_inc(&priv.pending);
-				btrfs_submit_bio(fs_info, bio, 0);
+				btrfs_submit_bio(bio, 0);
 				bio = NULL;
 				continue;
 			}