From mboxrd@z Thu Jan 1 00:00:00 1970 From: kbuild test robot Subject: Re: [PATCH 1/7] Revert "mm: take i_mmap_lock in unmap_mapping_range() for DAX" Date: Thu, 1 Oct 2015 16:35:50 +0800 Message-ID: <201510011627.eAfVmtFF%fengguang.wu@intel.com> References: <1443685599-4843-2-git-send-email-david@fromorbit.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kbuild-all@01.org, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, ross.zwisler@linux.intel.com, willy@linux.intel.com, dan.j.williams@intel.com, kirill.shutemov@linux.intel.com, linux-nvdimm@lists.01.org, jack@suse.cz, linux-kernel@vger.kernel.org To: Dave Chinner Return-path: Content-Disposition: inline In-Reply-To: <1443685599-4843-2-git-send-email-david@fromorbit.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Hi Dave, [auto build test results on v4.3-rc3 -- if it's inappropriate base, please ignore] reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) >> fs/dax.c:626:50: sparse: incorrect type in argument 1 (different address spaces) fs/dax.c:626:50: expected void *page fs/dax.c:626:50: got void [noderef] * vim +626 fs/dax.c 610 result = VM_FAULT_NOPAGE; 611 spin_unlock(ptl); 612 } else { 613 sector = bh.b_blocknr << (blkbits - 9); 614 length = bdev_direct_access(bh.b_bdev, sector, &kaddr, &pfn, 615 bh.b_size); 616 if (length < 0) { 617 result = VM_FAULT_SIGBUS; 618 goto out; 619 } 620 if ((length < PMD_SIZE) || (pfn & PG_PMD_COLOUR)) 621 goto fallback; 622 623 if (buffer_unwritten(&bh) || buffer_new(&bh)) { 624 int i; 625 for (i = 0; i < PTRS_PER_PMD; i++) > 626 clear_page(kaddr + i * PAGE_SIZE); 627 count_vm_event(PGMAJFAULT); 628 mem_cgroup_count_vm_event(vma->vm_mm, PGMAJFAULT); 629 result |= VM_FAULT_MAJOR; 630 } 631 632 result |= vmf_insert_pfn_pmd(vma, address, pmd, pfn, write); 633 } 634 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation