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Message-ID: <202309250923.NEPT0ip2-lkp@intel.com>
Date: Mon, 25 Sep 2023 10:04:03 +0800
From: kernel test robot <lkp@...el.com>
To: riel@...riel.com, linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, kernel-team@...a.com,
linux-mm@...ck.org, akpm@...ux-foundation.org,
muchun.song@...ux.dev, mike.kravetz@...cle.com, leit@...a.com,
willy@...radead.org, Rik van Riel <riel@...riel.com>
Subject: Re: [PATCH 3/3] hugetlbfs: replace hugetlb_vma_lock with
invalidate_lock
Hi,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master v6.6-rc3 next-20230921]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/riel-surriel-com/hugetlbfs-extend-hugetlb_vma_lock-to-private-VMAs/20230923-030756
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20230922190552.3963067-4-riel%40surriel.com
patch subject: [PATCH 3/3] hugetlbfs: replace hugetlb_vma_lock with invalidate_lock
config: x86_64-randconfig-013-20230925 (https://download.01.org/0day-ci/archive/20230925/202309250923.NEPT0ip2-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230925/202309250923.NEPT0ip2-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309250923.NEPT0ip2-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from arch/x86/include/asm/bug.h:87,
from include/linux/bug.h:5,
from include/linux/thread_info.h:13,
from arch/x86/include/asm/preempt.h:9,
from include/linux/preempt.h:79,
from include/linux/spinlock.h:56,
from include/linux/mmzone.h:8,
from include/linux/gfp.h:7,
from include/linux/slab.h:16,
from fs/nfs/write.c:11:
include/linux/hugetlb.h: In function 'hugetlb_walk':
>> include/linux/hugetlb.h:1285:42: error: dereferencing pointer to incomplete type 'struct hugetlb_vma_lock'
1285 | WARN_ON_ONCE(!lockdep_is_held(&vma_lock->rw_sema) &&
| ^~
include/asm-generic/bug.h:111:25: note: in definition of macro 'WARN_ON_ONCE'
111 | int __ret_warn_on = !!(condition); \
| ^~~~~~~~~
include/linux/hugetlb.h:1285:17: note: in expansion of macro 'lockdep_is_held'
1285 | WARN_ON_ONCE(!lockdep_is_held(&vma_lock->rw_sema) &&
| ^~~~~~~~~~~~~~~
vim +1285 include/linux/hugetlb.h
185d8dcce62020 Rik van Riel 2023-09-22 1265
9c67a20704e763 Peter Xu 2022-12-16 1266 /*
9c67a20704e763 Peter Xu 2022-12-16 1267 * Safe version of huge_pte_offset() to check the locks. See comments
9c67a20704e763 Peter Xu 2022-12-16 1268 * above huge_pte_offset().
9c67a20704e763 Peter Xu 2022-12-16 1269 */
9c67a20704e763 Peter Xu 2022-12-16 1270 static inline pte_t *
9c67a20704e763 Peter Xu 2022-12-16 1271 hugetlb_walk(struct vm_area_struct *vma, unsigned long addr, unsigned long sz)
9c67a20704e763 Peter Xu 2022-12-16 1272 {
9c67a20704e763 Peter Xu 2022-12-16 1273 #if defined(CONFIG_HUGETLB_PAGE) && \
9c67a20704e763 Peter Xu 2022-12-16 1274 defined(CONFIG_ARCH_WANT_HUGE_PMD_SHARE) && defined(CONFIG_LOCKDEP)
9c67a20704e763 Peter Xu 2022-12-16 1275 struct hugetlb_vma_lock *vma_lock = vma->vm_private_data;
9c67a20704e763 Peter Xu 2022-12-16 1276
9c67a20704e763 Peter Xu 2022-12-16 1277 /*
9c67a20704e763 Peter Xu 2022-12-16 1278 * If pmd sharing possible, locking needed to safely walk the
9c67a20704e763 Peter Xu 2022-12-16 1279 * hugetlb pgtables. More information can be found at the comment
9c67a20704e763 Peter Xu 2022-12-16 1280 * above huge_pte_offset() in the same file.
9c67a20704e763 Peter Xu 2022-12-16 1281 *
9c67a20704e763 Peter Xu 2022-12-16 1282 * NOTE: lockdep_is_held() is only defined with CONFIG_LOCKDEP.
9c67a20704e763 Peter Xu 2022-12-16 1283 */
9c67a20704e763 Peter Xu 2022-12-16 1284 if (__vma_shareable_lock(vma))
9c67a20704e763 Peter Xu 2022-12-16 @1285 WARN_ON_ONCE(!lockdep_is_held(&vma_lock->rw_sema) &&
9c67a20704e763 Peter Xu 2022-12-16 1286 !lockdep_is_held(
9c67a20704e763 Peter Xu 2022-12-16 1287 &vma->vm_file->f_mapping->i_mmap_rwsem));
9c67a20704e763 Peter Xu 2022-12-16 1288 #endif
9c67a20704e763 Peter Xu 2022-12-16 1289 return huge_pte_offset(vma->vm_mm, addr, sz);
9c67a20704e763 Peter Xu 2022-12-16 1290 }
9c67a20704e763 Peter Xu 2022-12-16 1291
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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