block: convert to errseq_t based writeback error tracking

This is a very minimal conversion to errseq_t based error tracking
for raw block device access. Just have it use the standard
file_write_and_wait_range call.

Note that there are internal callers that call sync_blockdev
and the like that are not affected by this. They'll continue
to use the AS_EIO/AS_ENOSPC flags for error reporting like
they always have for now.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeff Layton <jlayton@redhat.com>

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 4d62fe771587949093e5d0db261e0cd29f678b8b..bcb0be6e423a5d711c4ca5a07d07816e0c457737 100644 (file)
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -624,7 +624,7 @@ int blkdev_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
        struct block_device *bdev = I_BDEV(bd_inode);
        int error;
        
-       error = filemap_write_and_wait_range(filp->f_mapping, start, end);
+       error = file_write_and_wait_range(filp, start, end);
        if (error)
                return error;