Re: [PATCH] jbd2: get rid of open coded allocation retry loop

From: Theodore Ts'o
Date: Mon Jun 15 2015 - 15:47:22 EST


On Mon, Jun 15, 2015 at 04:17:34PM +0200, Michal Hocko wrote:
> insert_revoke_hash does an open coded endless allocation loop if
> journal_oom_retry is true. It doesn't implement any allocation fallback
> strategy between the retries, though. The memory allocator doesn't know
> about the never fail requirement so it cannot potentially help to move
> on with the allocation (e.g. use memory reserves).
>
> Get rid of the retry loop and use __GFP_NOFAIL instead. We will lose the
> debugging message but I am not sure it is anyhow helpful.
>
> Do the same for journal_alloc_journal_head which is doing a similar
> thing.
>
> Signed-off-by: Michal Hocko <mhocko@xxxxxxx>

Thanks, applied.

- Ted
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