On Thu, 11 Mar 2010, Avi Kivity wrote: > On 03/11/2010 10:51 AM, Jan Kiszka wrote: > > > > > Thanks for pointing out! Since which kernel can we rely on the implicit > > set_page_private? > > Um, git blame shows it goes all the way back to 2.6.12. So it was redundant > all along. Not that it matters at all, but no, that was just the dawning of the git age. prep_new_page() started initializing page->private in 2.6.0-test3: <akpm@xxxxxxxx> [PATCH] initialise page->private From: Nathan Scott <nathans@xxxxxxx> XFS wants to use page->private as a bitmap of uptodate indicators for sub-page-sized blocks (which is one of the things ->provate was intended for). But someone needs to initialise ->private somewhere. best to do it in the page allocator, so the zeroness of a new page's ->private becomes a system-wide thing. Hugh -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>