On 02/06/2012 03:49 PM, Andrew Morton wrote:
On Mon, 6 Feb 2012 11:40:08 -0800 (PST)
Hugh Dickins<hughd@xxxxxxxxxx> wrote:
I get this lockdep warning from swapping load on linux-next
(20120201 but I expect the same from more recent days):
The patch looks good as a standalone optimisation/cleanup. The lack of
clarity on the lockdep thing is a concern - I have a feeling we'll be
bitten again.
Very strange, kswapd does not seem to be holding any locks
when calling balance_pgdat...
I assume it must be this line in kswapd() that's causing
lockdep to trigger:
lockdep_set_current_reclaim_state(GFP_KERNEL);
This fix seems to be applicable to mainline?
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