Messages in this thread | | | Date | Sun, 12 Sep 1999 14:50:16 +0200 (CEST) | From | Andrea Arcangeli <> | Subject | Re: [patch] show_buffers() resurrection |
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On Sun, 12 Sep 1999, David S. Miller wrote:
>It can violate the strict buffer cache locking order if the sequence >of events is just right.
??? trylock is always safe. You can deadlock _only_ spinning on the lock. As far as you don't spin you can do everything you want at any time.
And BTW lru_list_lock is the first one to grab, so you can grab it at any time, and if somebody is just grabbing it plus something else then you'll find the lru_list_lock as just busy and you'll giveup in trylock.
Andrea
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