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[retry] Hold reference while timer is running and during expiry callback

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Guarantee that a retry timer cannot go out of scope while the timer is
running, and provide a guarantee to the expiry callback that the timer
will remain in scope during the entire callback (similar to the
guarantee provided to interface methods).

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2010-09-02 03:34:04 +01:00
parent 25447294d5
commit 28934eef81
10 changed files with 31 additions and 14 deletions
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2
src/net/aoe.c
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@@ -439,7 +439,7 @@ int aoe_attach ( struct ata_device *ata, struct net_device *netdev,
if ( ! aoe )
return -ENOMEM;
ref_init ( &aoe->refcnt, aoe_free );
timer_init ( &aoe->timer, aoe_timer_expired );
timer_init ( &aoe->timer, aoe_timer_expired, &aoe->refcnt );
aoe->netdev = netdev_get ( netdev );
memcpy ( aoe->target, netdev->ll_broadcast, sizeof ( aoe->target ) );
aoe->tag = AOE_TAG_MAGIC;