From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 2/5] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory
Date: Fri, 26 Sep 2014 05:01:04 -0700 [thread overview]
Message-ID: <20140926120104.GA10574@infradead.org> (raw)
In-Reply-To: <1411697952-24741-3-git-send-email-david@fromorbit.com>
On Fri, Sep 26, 2014 at 12:19:09PM +1000, Dave Chinner wrote:
> From: Dave Chinner <dchinner@redhat.com>
>
> The XLOG_UNMOUNT_TRANS case skips the transaction, despite the fact
> an unmount record is always in a standalone transaction. Hence
> whenever we come across one of these we need to free the transaction
> structure associated with it as there is no commit record that
> follows it.
>
> Signed-off-by: Dave Chinner <dchinner@redhat.com>
Looks good,
Reviewed-by: Christoph Hellwig <hch@lst.de>
> @@ -3600,8 +3605,10 @@ xlog_recover_ophdr_to_trans(
> * on this opheader is allocate a new recovery container to hold
> * the recovery ops that will follow.
> */
> - if (ohead->oh_flags & XLOG_START_TRANS)
> + if (ohead->oh_flags & XLOG_START_TRANS) {
> + ASSERT(be32_to_cpu(ohead->oh_len) == 0);
> xlog_recover_new_tid(rhp, tid, be64_to_cpu(rhead->h_lsn));
> + }
> return NULL;
.. but I suspect this hunk fits better into the previous patch.
Also shouldn't we handle any sort of on disk corruption more gracefully?
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next prev parent reply other threads:[~2014-09-26 12:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-26 2:19 [PATCH 0/5 v2] xfs: clean up xlog_recover_process_data Dave Chinner
2014-09-26 2:19 ` [PATCH 1/5] xfs: refactor xlog_recover_process_data() Dave Chinner
2014-09-26 11:42 ` Christoph Hellwig
2014-09-26 23:22 ` Dave Chinner
2014-09-26 2:19 ` [PATCH 2/5] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory Dave Chinner
2014-09-26 12:01 ` Christoph Hellwig [this message]
2014-09-26 23:27 ` Dave Chinner
2014-09-26 2:19 ` [PATCH 3/5] xfs: fix double free in xlog_recover_commit_trans Dave Chinner
2014-09-26 2:19 ` [PATCH 4/5] xfs: reorganise transaction recovery item code Dave Chinner
2014-09-26 12:05 ` Christoph Hellwig
2014-09-26 2:19 ` [PATCH 5/5] xfs: refactor recovery transaction start handling Dave Chinner
2014-09-26 12:08 ` Christoph Hellwig
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