Messages in this thread | | | Date | Fri, 15 May 2009 13:11:44 +0200 | From | Michał Nazarewicz <> | Subject | Re: [PATCH] Physical Memory Management [0/1] |
| |
> On Fri, 2009-05-15 at 12:47 +0200, Michał Nazarewicz wrote: >> I cannot create a huge page SysV shared memory segment >> with pages of specified size, can I?
On Fri, 15 May 2009 13:03:34 +0200, Peter Zijlstra wrote: > Well, hugetlbfs is a fs, so you can simply create a file on there and > map that shared -- much saner interface than sysvshm if you ask me.
It's not a question of being sane or not, it's a question of whether X server supports it and it doesn't. X can read data from Sys V shm to avoid needles copying (or sending via unix socket or whatever) pixmaps (or whatever) and so PMM lets it read from continuous blocks without knowing or carying about it.
-- Best regards, _ _ .o. | Liege of Serenly Enlightened Majesty of o' \,=./ `o ..o | Computer Science, Michał "mina86" Nazarewicz (o o) ooo +-<m.nazarewicz@samsung.com>-<mina86@jabber.org>-ooO--(_)--Ooo--
-- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |