From: kernel test robot <lkp@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: oe-kbuild-all@lists.linux.dev,
Linux Memory Management List <linux-mm@kvack.org>,
Muhammad Usama Anjum <usama.anjum@collabora.com>
Subject: [linux-next:master 8126/8345] fs/proc/task_mmu.c:2105:3: error: implicit declaration of function 'pagemap_scan_backout_range'; did you mean 'pagemap_scan_push_range'?
Date: Wed, 27 Sep 2023 17:21:07 +0800 [thread overview]
Message-ID: <202309271719.sXq960r2-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 18030226a48de1fbfabf4ae16aaa2695a484254f
commit: 9ce57107e2c4448860ac500e6080f576fabc7081 [8126/8345] fs-proc-task_mmu-implement-ioctl-to-get-and-optionally-clear-info-about-ptes-fix-2
config: i386-randconfig-003-20230927 (https://download.01.org/0day-ci/archive/20230927/202309271719.sXq960r2-lkp@intel.com/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230927/202309271719.sXq960r2-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309271719.sXq960r2-lkp@intel.com/
All errors (new ones prefixed by >>):
fs/proc/task_mmu.c: In function 'pagemap_scan_thp_entry':
>> fs/proc/task_mmu.c:2105:3: error: implicit declaration of function 'pagemap_scan_backout_range'; did you mean 'pagemap_scan_push_range'? [-Werror=implicit-function-declaration]
pagemap_scan_backout_range(p, start, end);
^~~~~~~~~~~~~~~~~~~~~~~~~~
pagemap_scan_push_range
cc1: some warnings being treated as errors
vim +2105 fs/proc/task_mmu.c
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2068
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2069 static int pagemap_scan_thp_entry(pmd_t *pmd, unsigned long start,
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2070 unsigned long end, struct mm_walk *walk)
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2071 {
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2072 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2073 struct pagemap_scan_private *p = walk->private;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2074 struct vm_area_struct *vma = walk->vma;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2075 unsigned long categories;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2076 spinlock_t *ptl;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2077 int ret = 0;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2078
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2079 ptl = pmd_trans_huge_lock(pmd, vma);
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2080 if (!ptl)
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2081 return -ENOENT;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2082
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2083 categories = p->cur_vma_category |
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2084 pagemap_thp_category(p, vma, start, *pmd);
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2085
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2086 if (!pagemap_scan_is_interesting_page(categories, p))
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2087 goto out_unlock;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2088
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2089 ret = pagemap_scan_output(categories, p, start, &end);
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2090 if (start == end)
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2091 goto out_unlock;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2092
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2093 if (~p->arg.flags & PM_SCAN_WP_MATCHING)
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2094 goto out_unlock;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2095 if (~categories & PAGE_IS_WRITTEN)
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2096 goto out_unlock;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2097
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2098 /*
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2099 * Break huge page into small pages if the WP operation
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2100 * needs to be performed on a portion of the huge page.
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2101 */
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2102 if (end != start + HPAGE_SIZE) {
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2103 spin_unlock(ptl);
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2104 split_huge_pmd(vma, pmd, start);
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 @2105 pagemap_scan_backout_range(p, start, end);
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2106 /* Report as if there was no THP */
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2107 return -ENOENT;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2108 }
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2109
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2110 make_uffd_wp_pmd(vma, start, pmd);
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2111 flush_tlb_range(vma, start, end);
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2112 out_unlock:
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2113 spin_unlock(ptl);
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2114 return ret;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2115 #else /* !CONFIG_TRANSPARENT_HUGEPAGE */
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2116 return -ENOENT;
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2117 #endif
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2118 }
3fa00ae945d61a Muhammad Usama Anjum 2023-08-21 2119
:::::: The code at line 2105 was first introduced by commit
:::::: 3fa00ae945d61a07a53f7609dc86e7c832d7c535 fs/proc/task_mmu: implement IOCTL to get and optionally clear info about PTEs
:::::: TO: Muhammad Usama Anjum <usama.anjum@collabora.com>
:::::: CC: Andrew Morton <akpm@linux-foundation.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2023-09-27 9:21 UTC|newest]
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