[Devel] Re: [PATCH] add_timer -> mod_timer() in dst_run_gc()

David Miller davem at davemloft.net
Wed Aug 9 02:26:12 PDT 2006

From: Kirill Korotaev <dev at openvz.org>
Date: Wed, 09 Aug 2006 13:01:32 +0400

> F.e. timer has fired on CPU2, but the handler was preeempted
> by an irq before dst_lock is tried.
> Meanwhile, someone on CPU1 adds an entry to gc list and
> starts the timer.
> If CPU2 was preempted long enough, this timer can expire
> simultaneously with resuming timer handler on CPU1, arriving
> exactly to the situation described.

Makes sense.

Patch applied, thanks.

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