On Mon, May 06, 2013 at 11:36:43AM +0800, Lingzhu Xiang wrote: > On 05/04/2013 04:23 AM, gregkh@xxxxxxxxxxxxxxxxxxx wrote: > > > > The patch below does not apply to the 3.9-stable tree. > > If someone wants it applied there, or to any other stable or longterm > > tree, then please email the backport, including the original git commit > > id to <stable@xxxxxxxxxxxxxxx>. > > > > thanks, > > > > greg k-h > > > > ------------------ original commit in Linus's tree ------------------ > > > > From a0a9434dd50aac5971d63207ff1e25e69c9abdb3 Mon Sep 17 00:00:00 2001 > > From: Hugh Dickins <hughd@xxxxxxxxxx> > > Date: Tue, 23 Apr 2013 11:20:35 +0100 > > Subject: [PATCH] ARM: 7701/1: mm: Allow arch code to control the user page > > table ceiling > > > > On architectures where a pgd entry may be shared between user and kernel > > (e.g. ARM+LPAE), freeing page tables needs a ceiling other than 0. This > > patch introduces a generic USER_PGTABLES_CEILING that arch code can > > override. It is the responsibility of the arch code setting the ceiling > > to ensure the complete freeing of the page tables (usually in > > pgd_free()). > > > > [catalin.marinas@xxxxxxx: commit log; shift_arg_pages(), asm-generic/pgtables.h changes] > > > > Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx> > > Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx> > > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > > Cc: <stable@xxxxxxxxxxxxxxx> # 3.3+ > > Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> > > This patch looks like a duplicate of > > 6ee8630e02be6dd89926ca0fbc21af68b23dc087 mm: allow arch code to control the user page table ceiling. > > What's going on? What's going on is that we didn't know that akpm would push it, so a week before the merge window Catalin sent me the patches and I merged them into my tree, but never pushed the tree out before akpm sent them. I wasn't going to rebase my tree to get rid of them. -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html