From mboxrd@z Thu Jan 1 00:00:00 1970 From: mina86@mina86.com (Michal Nazarewicz) Date: Tue, 14 Jun 2011 20:40:46 +0200 Subject: [PATCH 08/10] mm: cma: Contiguous Memory Allocator added In-Reply-To: <201106142030.07549.arnd@arndb.de> References: <1307699698-29369-1-git-send-email-m.szyprowski@samsung.com> <201106141803.00876.arnd@arndb.de> <201106142030.07549.arnd@arndb.de> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org > On Tuesday 14 June 2011 18:58:35 Michal Nazarewicz wrote: >> Is having support for multiple regions a bad thing? Frankly, >> removing this support will change code from reading context passed >> as argument to code reading context from global variable. Nothing >> is gained; functionality is lost. On Tue, 14 Jun 2011 20:30:07 +0200, Arnd Bergmann wrote: > What is bad IMHO is making them the default, which forces the board > code to care about memory management details. I would much prefer > to have contiguous allocation parameters tuned automatically to just > work on most boards before we add ways to do board-specific hacks. I see those as orthogonal problems. The code can have support for multiple contexts but by default use a single global context exported as cma_global variable (or some such). And I'm not arguing against having ?contiguous allocation parameters tuned automatically to just work on most boards?. I just don't see the reason to delete functionality that is already there, does not add much code and can be useful. -- Best regards, _ _ .o. | Liege of Serenely Enlightened Majesty of o' \,=./ `o ..o | Computer Science, Michal "mina86" Nazarewicz (o o) ooo +----------ooO--(_)--Ooo--