Messages in this thread | | | From | Oliver Neukum <> | Subject | Re: [RFC][PATCH] PM: Force GFP_NOIO during suspend/resume (was: Re: [linux-pm] Memory allocations in .suspend became very unreliable) | Date | Mon, 18 Jan 2010 18:00:38 +0100 |
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Am Sonntag, 17. Januar 2010 14:55:55 schrieb Rafael J. Wysocki: > +void mm_force_noio_allocations(void) > +{ > + /* Wait for all slowpath allocations using the old mask to complete */ > + down_write(&gfp_allowed_mask_sem); > + saved_gfp_allowed_mask = gfp_allowed_mask; > + gfp_allowed_mask &= ~(__GFP_IO | __GFP_FS); > + up_write(&gfp_allowed_mask_sem); > +}
In addition to this you probably want to exhaust all memory reserves before you fail a memory allocation and forbid the OOM killer to run.
Regards Oliver
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