Re: [RFC][PATCH v3 4/6] aio: Don't inherit aio ring memory at fork
flat view
From: Andrea Arcangeli <hidden>
Date: 2009-04-14 13:41:09
Also in:
linux-fsdevel, linux-mm, lkml
On Tue, Apr 14, 2009 at 03:20:20PM +0900, KOSAKI Motohiro wrote:
In addition, This patch has good side effect. it also fix "get_user_pages() vs fork" problem.
Yes, patches like 3/6, 4/6, and 6/6 are the side effect of not fixing the core race in gup and spreading the new rwsem around the gup users, instead of sticking to a page-granular PG_flag touched at the same time atomic_inc runs on page->_count. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>