ext2: replace bh_submit_read() helper with bh_read()

Bugzilla: https://bugzilla.redhat.com/2160719
Tested: xfstests
Upstream Status: upstream

commit 28cf755
Author: Zhang Yi <yi.zhang@huawei.com>
    
    bh_submit_read() and the uptodate check logic in bh_uptodate_or_lock()
    has been integrated in bh_read() helper, so switch to use it directly.
    
    Link: https://lkml.kernel.org/r/20220901133505.2510834-14-yi.zhang@huawei.com
    Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
    Reviewed-by: Jan Kara <jack@suse.cz>
    Reviewed-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    (cherry picked from commit 28cf755)
    Signed-off-by: Lukas Czerner <lczerner@redhat.com>

Signed-off-by: Lukas Czerner <lczerner@redhat.com>

Author: Lukas Czerner

fs/ext2/balloc.c

@@ -128,6 +128,7 @@ read_block_bitmap(struct super_block *sb, unsigned int block_group)
 	struct ext2_group_desc * desc;
 	struct buffer_head * bh = NULL;
 	ext2_fsblk_t bitmap_blk;
+	int ret;
 
 	desc = ext2_get_group_desc(sb, block_group, NULL);
 	if (!desc)
@@ -141,10 +142,10 @@ read_block_bitmap(struct super_block *sb, unsigned int block_group)
 			    block_group, le32_to_cpu(desc->bg_block_bitmap));
 		return NULL;
 	}
-	if (likely(bh_uptodate_or_lock(bh)))
+	ret = bh_read(bh, 0);
+	if (ret > 0)
 		return bh;
-
-	if (bh_submit_read(bh) < 0) {
+	if (ret < 0) {
 		brelse(bh);
 		ext2_error(sb, __func__,
 			    "Cannot read block bitmap - "