On Thu, Jun 23, 2016 at 11:09:52AM +0200, David Sterba wrote:
> On Wed, Jun 22, 2016 at 06:32:06PM -0700, Liu Bo wrote:
> > This is similar to btrfs_submit_compressed_read(), if we fail after
> > bio is allocated, then we can use bio_endio() and errors are saved
> > in bio->bi_error. But please note that we don't return errors to
> > its caller because the caller assumes it won't call endio to cleanup
> > on error.
>
> This sounds strange, where do we notice that some of the bios failed?
bio_endio()
-> end_compressed_bio_write()
-> end_compressed_writeback()
-> mapping_set_error(inode->i_mapping, -EIO);
Thanks,
-liubo
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