Re: [PATCH 05/10] writeback: support > 1 flusher thread per bdi

From: Jens Axboe
Date: Mon Jul 06 2009 - 08:22:24 EST


On Mon, Jul 06 2009, Artem Bityutskiy wrote:
> Jens Axboe wrote:
>> +static struct bdi_work *bdi_alloc_work(struct super_block *sb, long nr_pages,
>> + enum writeback_sync_modes sync_mode)
>> +{
>> + struct bdi_work *work;
>> +
>> + work = kmalloc(sizeof(*work), GFP_ATOMIC);
>> + if (work)
>> + bdi_work_init(work, sb, nr_pages, sync_mode);
>> - wb_start_writeback(&bdi->wb, sb, nr_pages, sync_mode);
>> + return work;
>> +}
>
> Since the caller of this function handles kmalloc failure gracefully,
> should we also pass __GFP_NOWARN flag to kmalloc() here, in order to
> avoid large and scary no-memory complaints?

Sure, it can't hurt.

--
Jens Axboe

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