Re: [PATCH] mm: avoid livelock on !__GFP_FS allocations

From: David Rientjes
Date: Wed Oct 26 2011 - 02:12:09 EST


On Tue, 25 Oct 2011, David Rientjes wrote:

> Ok, so __GFP_NORETRY it is. Just make sure that when
> pm_restrict_gfp_mask() masks off __GFP_IO and __GFP_FS that it also sets
> __GFP_NORETRY even though the name of the function no longer seems
> appropriate anymore.
>

Or, rather, when pm_restrict_gfp_mask() clears __GFP_IO and __GFP_FS that
it also has the same behavior as __GFP_NORETRY in should_alloc_retry() by
setting a variable in file scope.
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