workqueue: add to_delayed_work() helper function
It is a fairly common operation to have a pointer to a work and to need a pointer to the delayed work it is contained in. In particular, all delayed works which want to rearm themselves will have to do that. So it would seem fair to offer a helper function for this operation. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Greg KH <greg@kroah.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds
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e4c2ff1cf2
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bf6aede712
@@ -1882,7 +1882,7 @@ static void hifn_clear_rings(struct hifn_device *dev, int error)
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static void hifn_work(struct work_struct *work)
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{
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struct delayed_work *dw = container_of(work, struct delayed_work, work);
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struct delayed_work *dw = to_delayed_work(work);
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struct hifn_device *dev = container_of(dw, struct hifn_device, work);
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unsigned long flags;
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int reset = 0;
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