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Date: Thu, 30 Aug 2007 03:34:12 +0530 From: Balbir Singh <balbir@...ux.vnet.ibm.com> To: Dave Hansen <haveblue@...ibm.com> CC: Andrew Morton <akpm@...ux-foundation.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux MM Mailing List <linux-mm@...ck.org>, David Rientjes <rientjes@...gle.com>, Linux Containers <containers@...ts.osdl.org>, Paul Menage <menage@...gle.com> Subject: Re: [-mm PATCH] Memory controller improve user interface Dave Hansen wrote: > On Wed, 2007-08-29 at 16:40 +0530, Balbir Singh wrote: >> >> @@ -352,7 +353,7 @@ int mem_container_charge(struct page *pa >> kfree(pc); >> pc = race_pc; >> atomic_inc(&pc->ref_cnt); >> - res_counter_uncharge(&mem->res, 1); >> + res_counter_uncharge(&mem->res, MEM_CONTAINER_CHARGE_KB); >> css_put(&mem->css); >> goto done; >> } > > Do these changes really need to happen anywhere besides the > user<->kernel boundary? Why can't internal tracking be in pages? I've thought about this before. The problem is that a user could set his limit to 10000 bytes, but would then see the usage and limit round to the closest page boundary. This can be confusing to a user. -- Warm Regards, Balbir Singh Linux Technology Center IBM, ISTL - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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