From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp2.linux-foundation.org ([207.189.120.14]:42580 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754601AbXKMCJM (ORCPT ); Mon, 12 Nov 2007 21:09:12 -0500 Message-Id: <200711130209.lAD293oT021305@imap1.linux-foundation.org> Subject: + arch_rebalance_pgtables-call.patch added to -mm tree From: akpm@linux-foundation.org Date: Mon, 12 Nov 2007 18:09:03 -0800 Sender: linux-arch-owner@vger.kernel.org To: mm-commits@vger.kernel.org Cc: schwidefsky@de.ibm.com, benh@kernel.crashing.org, linux-arch@vger.kernel.org List-ID: The patch titled arch_rebalance_pgtables call has been added to the -mm tree. Its filename is arch_rebalance_pgtables-call.patch *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this ------------------------------------------------------ Subject: arch_rebalance_pgtables call From: Martin Schwidefsky In order to change the layout of the page tables after an mmap has crossed the adress space limit of the current page table layout a architecture hook in get_unmapped_area is needed. The arguments are the address of the new mapping and the length of it. Cc: Benjamin Herrenschmidt Signed-off-by: Martin Schwidefsky Cc: Signed-off-by: Andrew Morton --- mm/mmap.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff -puN mm/mmap.c~arch_rebalance_pgtables-call mm/mmap.c --- a/mm/mmap.c~arch_rebalance_pgtables-call +++ a/mm/mmap.c @@ -36,6 +36,10 @@ #define arch_mmap_check(addr, len, flags) (0) #endif +#ifndef arch_rebalance_pgtables +#define arch_rebalance_pgtables(addr, len) (addr) +#endif + static void unmap_region(struct mm_struct *mm, struct vm_area_struct *vma, struct vm_area_struct *prev, unsigned long start, unsigned long end); @@ -1421,7 +1425,7 @@ get_unmapped_area(struct file *file, uns if (addr & ~PAGE_MASK) return -EINVAL; - return addr; + return arch_rebalance_pgtables(addr, len); } EXPORT_SYMBOL(get_unmapped_area); _ Patches currently in -mm which might be from schwidefsky@de.ibm.com are git-s390.patch s390-cmm-remove-unused-binary-sysctls.patch git-scsi-misc.patch add-mm-argument-to-pte-pmd-pud-pgd_free.patch config_highpte-vs-sub-page-page-tables.patch arch_rebalance_pgtables-call.patch taskstats-scaled-time-cleanup.patch unexport-asm-pageh.patch sanitize-the-type-of-struct-useru_ar0.patch add-cmpxchg_local-to-s390.patch