Hi,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
url: https://github.com/intel-lab-lkp/linux/commits/yangge1116-126-com/mm-compact... base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/1734157420-31110-1-git-send-email-yangge1116%40126... patch subject: [PATCH V2] mm, compaction: don't use ALLOC_CMA in long term GUP flow config: arm-randconfig-001-20241215 (https://download.01.org/0day-ci/archive/20241215/202412151325.svvh8EAB-lkp@i...) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 2dc22615fd46ab2566d0f26d5ba234ab12dc4bf8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241215/202412151325.svvh8EAB-lkp@i...)
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/202412151325.svvh8EAB-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from mm/vmscan.c:30: include/linux/mm_inline.h:47:41: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 47 | __mod_lruvec_state(lruvec, NR_LRU_BASE + lru, nr_pages); | ~~~~~~~~~~~ ^ ~~~ include/linux/mm_inline.h:49:22: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 49 | NR_ZONE_LRU_BASE + lru, nr_pages); | ~~~~~~~~~~~~~~~~ ^ ~~~ mm/vmscan.c:409:51: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 409 | size += zone_page_state(zone, NR_ZONE_LRU_BASE + lru); | ~~~~~~~~~~~~~~~~ ^ ~~~ mm/vmscan.c:1773:4: warning: arithmetic between different enumeration types ('enum vm_event_item' and 'enum zone_type') [-Wenum-enum-conversion] 1773 | __count_zid_vm_events(PGSCAN_SKIP, zid, nr_skipped[zid]); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:139:34: note: expanded from macro '__count_zid_vm_events' 139 | __count_vm_events(item##_NORMAL - ZONE_NORMAL + zid, delta) | ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~ mm/vmscan.c:2279:51: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 2279 | inactive = lruvec_page_state(lruvec, NR_LRU_BASE + inactive_lru); | ~~~~~~~~~~~ ^ ~~~~~~~~~~~~ mm/vmscan.c:2280:49: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 2280 | active = lruvec_page_state(lruvec, NR_LRU_BASE + active_lru); | ~~~~~~~~~~~ ^ ~~~~~~~~~~
mm/vmscan.c:5822:61: error: too many arguments to function call, expected 3, have 4
5822 | if (compaction_suitable(zone, sc->order, sc->reclaim_idx, 0)) | ~~~~~~~~~~~~~~~~~~~ ^ include/linux/compaction.h:111:20: note: 'compaction_suitable' declared here 111 | static inline bool compaction_suitable(struct zone *zone, int order, | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 112 | int highest_zoneidx) | ~~~~~~~~~~~~~~~~~~~ mm/vmscan.c:6050:61: error: too many arguments to function call, expected 3, have 4 6050 | if (!compaction_suitable(zone, sc->order, sc->reclaim_idx, 0)) | ~~~~~~~~~~~~~~~~~~~ ^ include/linux/compaction.h:111:20: note: 'compaction_suitable' declared here 111 | static inline bool compaction_suitable(struct zone *zone, int order, | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 112 | int highest_zoneidx) | ~~~~~~~~~~~~~~~~~~~ mm/vmscan.c:6239:3: warning: arithmetic between different enumeration types ('enum vm_event_item' and 'enum zone_type') [-Wenum-enum-conversion] 6239 | __count_zid_vm_events(ALLOCSTALL, sc->reclaim_idx, 1); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:139:34: note: expanded from macro '__count_zid_vm_events' 139 | __count_vm_events(item##_NORMAL - ZONE_NORMAL + zid, delta) | ~~~~~~~~~~~~~ ^ ~~~~~~~~~~~ 7 warnings and 2 errors generated.
vim +5822 mm/vmscan.c
5778 5779 /* 5780 * Reclaim/compaction is used for high-order allocation requests. It reclaims 5781 * order-0 pages before compacting the zone. should_continue_reclaim() returns 5782 * true if more pages should be reclaimed such that when the page allocator 5783 * calls try_to_compact_pages() that it will have enough free pages to succeed. 5784 * It will give up earlier than that if there is difficulty reclaiming pages. 5785 */ 5786 static inline bool should_continue_reclaim(struct pglist_data *pgdat, 5787 unsigned long nr_reclaimed, 5788 struct scan_control *sc) 5789 { 5790 unsigned long pages_for_compaction; 5791 unsigned long inactive_lru_pages; 5792 int z; 5793 5794 /* If not in reclaim/compaction mode, stop */ 5795 if (!in_reclaim_compaction(sc)) 5796 return false; 5797 5798 /* 5799 * Stop if we failed to reclaim any pages from the last SWAP_CLUSTER_MAX 5800 * number of pages that were scanned. This will return to the caller 5801 * with the risk reclaim/compaction and the resulting allocation attempt 5802 * fails. In the past we have tried harder for __GFP_RETRY_MAYFAIL 5803 * allocations through requiring that the full LRU list has been scanned 5804 * first, by assuming that zero delta of sc->nr_scanned means full LRU 5805 * scan, but that approximation was wrong, and there were corner cases 5806 * where always a non-zero amount of pages were scanned. 5807 */ 5808 if (!nr_reclaimed) 5809 return false; 5810 5811 /* If compaction would go ahead or the allocation would succeed, stop */ 5812 for (z = 0; z <= sc->reclaim_idx; z++) { 5813 struct zone *zone = &pgdat->node_zones[z]; 5814 if (!managed_zone(zone)) 5815 continue; 5816 5817 /* Allocation can already succeed, nothing to do */ 5818 if (zone_watermark_ok(zone, sc->order, min_wmark_pages(zone), 5819 sc->reclaim_idx, 0)) 5820 return false; 5821
5822 if (compaction_suitable(zone, sc->order, sc->reclaim_idx, 0))
5823 return false; 5824 } 5825 5826 /* 5827 * If we have not reclaimed enough pages for compaction and the 5828 * inactive lists are large enough, continue reclaiming 5829 */ 5830 pages_for_compaction = compact_gap(sc->order); 5831 inactive_lru_pages = node_page_state(pgdat, NR_INACTIVE_FILE); 5832 if (can_reclaim_anon_pages(NULL, pgdat->node_id, sc)) 5833 inactive_lru_pages += node_page_state(pgdat, NR_INACTIVE_ANON); 5834 5835 return inactive_lru_pages > pages_for_compaction; 5836 } 5837