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From: kernel test robot <lkp@intel.com>
To: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
	linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Cc: kbuild-all@lists.01.org,
	"Matthew Wilcox (Oracle)" <willy@infradead.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v9 74/96] mm/workingset: Convert workingset_refault to take a folio
Date: Thu, 6 May 2021 04:17:27 +0800	[thread overview]
Message-ID: <202105060454.QWwnGhDV-lkp@intel.com> (raw)
In-Reply-To: <20210505150628.111735-75-willy@infradead.org>

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Hi "Matthew,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20210505]
[cannot apply to hnaz-linux-mm/master xfs-linux/for-next tip/perf/core shaggy/jfs-next block/for-next linus/master asm-generic/master v5.12 v5.12-rc8 v5.12-rc7 v5.12]
[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]

url:    https://github.com/0day-ci/linux/commits/Matthew-Wilcox-Oracle/Memory-folios/20210506-014108
base:    29955e0289b3255c5f609a7564a0f0bb4ae35c7a
config: nds32-defconfig (attached as .config)
compiler: nds32le-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/b1883a3797e1623bf783141c25482fee16e1031c
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Matthew-Wilcox-Oracle/Memory-folios/20210506-014108
        git checkout b1883a3797e1623bf783141c25482fee16e1031c
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=nds32 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

   In file included from mm/workingset.c:8:
   include/linux/memcontrol.h: In function 'folio_uncharge_cgroup':
   include/linux/memcontrol.h:1213:42: error: parameter name omitted
    1213 | static inline void folio_uncharge_cgroup(struct folio *)
         |                                          ^~~~~~~~~~~~~~
   mm/workingset.c: In function 'unpack_shadow':
   mm/workingset.c:201:15: warning: variable 'nid' set but not used [-Wunused-but-set-variable]
     201 |  int memcgid, nid;
         |               ^~~
   mm/workingset.c: In function 'workingset_refault':
>> mm/workingset.c:348:10: error: implicit declaration of function 'folio_memcg' [-Werror=implicit-function-declaration]
     348 |  memcg = folio_memcg(folio);
         |          ^~~~~~~~~~~
>> mm/workingset.c:348:8: warning: assignment to 'struct mem_cgroup *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
     348 |  memcg = folio_memcg(folio);
         |        ^
   cc1: some warnings being treated as errors


vim +/folio_memcg +348 mm/workingset.c

   272	
   273	/**
   274	 * workingset_refault - evaluate the refault of a previously evicted folio
   275	 * @page: the freshly allocated replacement folio
   276	 * @shadow: shadow entry of the evicted folio
   277	 *
   278	 * Calculates and evaluates the refault distance of the previously
   279	 * evicted folio in the context of the node and the memcg whose memory
   280	 * pressure caused the eviction.
   281	 */
   282	void workingset_refault(struct folio *folio, void *shadow)
   283	{
   284		bool file = folio_is_file_lru(folio);
   285		struct mem_cgroup *eviction_memcg;
   286		struct lruvec *eviction_lruvec;
   287		unsigned long refault_distance;
   288		unsigned long workingset_size;
   289		struct pglist_data *pgdat;
   290		struct mem_cgroup *memcg;
   291		unsigned long eviction;
   292		struct lruvec *lruvec;
   293		unsigned long refault;
   294		bool workingset;
   295		int memcgid;
   296	
   297		unpack_shadow(shadow, &memcgid, &pgdat, &eviction, &workingset);
   298	
   299		rcu_read_lock();
   300		/*
   301		 * Look up the memcg associated with the stored ID. It might
   302		 * have been deleted since the folio's eviction.
   303		 *
   304		 * Note that in rare events the ID could have been recycled
   305		 * for a new cgroup that refaults a shared folio. This is
   306		 * impossible to tell from the available data. However, this
   307		 * should be a rare and limited disturbance, and activations
   308		 * are always speculative anyway. Ultimately, it's the aging
   309		 * algorithm's job to shake out the minimum access frequency
   310		 * for the active cache.
   311		 *
   312		 * XXX: On !CONFIG_MEMCG, this will always return NULL; it
   313		 * would be better if the root_mem_cgroup existed in all
   314		 * configurations instead.
   315		 */
   316		eviction_memcg = mem_cgroup_from_id(memcgid);
   317		if (!mem_cgroup_disabled() && !eviction_memcg)
   318			goto out;
   319		eviction_lruvec = mem_cgroup_lruvec(eviction_memcg, pgdat);
   320		refault = atomic_long_read(&eviction_lruvec->nonresident_age);
   321	
   322		/*
   323		 * Calculate the refault distance
   324		 *
   325		 * The unsigned subtraction here gives an accurate distance
   326		 * across nonresident_age overflows in most cases. There is a
   327		 * special case: usually, shadow entries have a short lifetime
   328		 * and are either refaulted or reclaimed along with the inode
   329		 * before they get too old.  But it is not impossible for the
   330		 * nonresident_age to lap a shadow entry in the field, which
   331		 * can then result in a false small refault distance, leading
   332		 * to a false activation should this old entry actually
   333		 * refault again.  However, earlier kernels used to deactivate
   334		 * unconditionally with *every* reclaim invocation for the
   335		 * longest time, so the occasional inappropriate activation
   336		 * leading to pressure on the active list is not a problem.
   337		 */
   338		refault_distance = (refault - eviction) & EVICTION_MASK;
   339	
   340		/*
   341		 * The activation decision for this folio is made at the level
   342		 * where the eviction occurred, as that is where the LRU order
   343		 * during folio reclaim is being determined.
   344		 *
   345		 * However, the cgroup that will own the folio is the one that
   346		 * is actually experiencing the refault event.
   347		 */
 > 348		memcg = folio_memcg(folio);
   349		lruvec = mem_cgroup_lruvec(memcg, pgdat);
   350	
   351		inc_lruvec_state(lruvec, WORKINGSET_REFAULT_BASE + file);
   352	
   353		/*
   354		 * Compare the distance to the existing workingset size. We
   355		 * don't activate pages that couldn't stay resident even if
   356		 * all the memory was available to the workingset. Whether
   357		 * workingset competition needs to consider anon or not depends
   358		 * on having swap.
   359		 */
   360		workingset_size = lruvec_page_state(eviction_lruvec, NR_ACTIVE_FILE);
   361		if (!file) {
   362			workingset_size += lruvec_page_state(eviction_lruvec,
   363							     NR_INACTIVE_FILE);
   364		}
   365		if (mem_cgroup_get_nr_swap_pages(memcg) > 0) {
   366			workingset_size += lruvec_page_state(eviction_lruvec,
   367							     NR_ACTIVE_ANON);
   368			if (file) {
   369				workingset_size += lruvec_page_state(eviction_lruvec,
   370							     NR_INACTIVE_ANON);
   371			}
   372		}
   373		if (refault_distance > workingset_size)
   374			goto out;
   375	
   376		folio_set_active_flag(folio);
   377		workingset_age_nonresident(lruvec, folio_nr_pages(folio));
   378		inc_lruvec_state(lruvec, WORKINGSET_ACTIVATE_BASE + file);
   379	
   380		/* Folio was active prior to eviction */
   381		if (workingset) {
   382			folio_set_workingset_flag(folio);
   383			/* XXX: Move to lru_cache_add() when it supports new vs putback */
   384			lru_note_cost_folio(folio);
   385			inc_lruvec_state(lruvec, WORKINGSET_RESTORE_BASE + file);
   386		}
   387	out:
   388		rcu_read_unlock();
   389	}
   390	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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  reply	other threads:[~2021-05-05 20:23 UTC|newest]

Thread overview: 108+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-05 15:04 [PATCH v9 00/96] Memory folios Matthew Wilcox (Oracle)
2021-05-05 15:04 ` [PATCH v9 01/96] mm: Optimise nth_page for contiguous memmap Matthew Wilcox (Oracle)
2021-05-05 17:24   ` Vlastimil Babka
2021-05-05 15:04 ` [PATCH v9 02/96] mm: Make __dump_page static Matthew Wilcox (Oracle)
2021-05-05 15:04 ` [PATCH v9 03/96] mm/debug: Factor PagePoisoned out of __dump_page Matthew Wilcox (Oracle)
2021-05-05 15:04 ` [PATCH v9 04/96] mm/page_owner: Constify dump_page_owner Matthew Wilcox (Oracle)
2021-05-05 15:04 ` [PATCH v9 05/96] mm: Make compound_head const-preserving Matthew Wilcox (Oracle)
2021-05-05 15:04 ` [PATCH v9 06/96] mm: Constify get_pfnblock_flags_mask and get_pfnblock_migratetype Matthew Wilcox (Oracle)
2021-05-05 15:04 ` [PATCH v9 07/96] mm: Constify page_count and page_ref_count Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 08/96] mm: Fix struct page layout on 32-bit systems Matthew Wilcox (Oracle)
2021-05-05 17:33   ` Vlastimil Babka
2021-05-05 15:05 ` [PATCH v9 09/96] mm: Introduce struct folio Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 10/96] mm: Add folio_pgdat and folio_zone Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 11/96] mm/vmstat: Add functions to account folio statistics Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 12/96] mm/debug: Add VM_BUG_ON_FOLIO and VM_WARN_ON_ONCE_FOLIO Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 13/96] mm: Add folio reference count functions Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 14/96] mm: Add folio_put Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 15/96] mm: Add folio_get Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 16/96] mm: Add folio flag manipulation functions Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 17/96] mm: Add folio_young() and folio_idle() Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 18/96] mm: Handle per-folio private data Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 19/96] mm/filemap: Add folio_index, folio_file_page and folio_contains Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 20/96] mm/filemap: Add folio_next_index Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 21/96] mm/filemap: Add folio_offset and folio_file_offset Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 22/96] mm/util: Add folio_mapping and folio_file_mapping Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 23/96] mm: Add folio_mapcount Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 24/96] mm/memcg: Add folio wrappers for various functions Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 25/96] mm/filemap: Add folio_unlock Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 26/96] mm/filemap: Add folio_lock Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 27/96] mm/filemap: Add folio_lock_killable Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 28/96] mm/filemap: Add __folio_lock_async Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 29/96] mm/filemap: Add __folio_lock_or_retry Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 30/96] mm/filemap: Add folio_wait_locked Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 31/96] mm/swap: Add folio_rotate_reclaimable Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 32/96] mm/filemap: Add folio_end_writeback Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 33/96] mm/writeback: Add folio_wait_writeback Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 34/96] mm/writeback: Add folio_wait_stable Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 35/96] mm/filemap: Add folio_wait_bit Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 36/96] mm/filemap: Add folio_wake_bit Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 37/96] mm/filemap: Convert page wait queues to be folios Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 38/96] mm/filemap: Add folio private_2 functions Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 39/96] fs/netfs: Add folio fscache functions Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 40/96] mm: Add folio_mapped Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 41/96] mm/workingset: Convert workingset_activation to take a folio Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 42/96] mm/swap: Add folio_activate Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 43/96] mm/swap: Add folio_mark_accessed Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 44/96] mm/rmap: Add folio_mkclean Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 45/96] mm: Add kmap_local_folio Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 46/96] mm: Add flush_dcache_folio Matthew Wilcox (Oracle)
2021-05-05 23:35   ` kernel test robot
2021-05-06  2:33     ` Matthew Wilcox
2021-05-05 15:05 ` [PATCH v9 47/96] mm: Add arch_make_folio_accessible Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 48/96] mm/memcg: Remove 'page' parameter to mem_cgroup_charge_statistics Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 49/96] mm/memcg: Use the node id in mem_cgroup_update_tree Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 50/96] mm/memcg: Convert commit_charge to take a folio Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 51/96] mm/memcg: Add folio_charge_cgroup Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 52/96] mm/memcg: Add folio_uncharge_cgroup Matthew Wilcox (Oracle)
2021-05-05 20:24   ` kernel test robot
2021-05-05 15:05 ` [PATCH v9 53/96] mm/memcg: Convert mem_cgroup_track_foreign_dirty_slowpath to folio Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 54/96] mm/writeback: Rename __add_wb_stat to wb_stat_mod Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 55/96] flex_proportions: Allow N events instead of 1 Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 56/96] mm/writeback: Change __wb_writeout_inc to __wb_writeout_add Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 57/96] mm/writeback: Convert test_clear_page_writeback to __folio_end_writeback Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 58/96] mm/writeback: Add folio_start_writeback Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 59/96] mm/writeback: Add folio_mark_dirty Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 60/96] mm/writeback: Use __set_page_dirty in __set_page_dirty_nobuffers Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 61/96] mm/writeback: Add __folio_mark_dirty Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 62/96] mm/writeback: Add filemap_dirty_folio Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 63/96] mm/writeback: Add folio_account_cleaned Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 64/96] mm/writeback: Add folio_cancel_dirty Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 65/96] mm/writeback: Add folio_clear_dirty_for_io Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 66/96] mm/writeback: Add folio_account_redirty Matthew Wilcox (Oracle)
2021-05-05 15:05 ` [PATCH v9 67/96] mm/writeback: Add folio_redirty_for_writepage Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 68/96] mm/filemap: Add i_blocks_per_folio Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 69/96] mm/filemap: Add folio_mkwrite_check_truncate Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 70/96] mm/filemap: Add readahead_folio Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 71/96] block: Add bio_add_folio Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 72/96] block: Add bio_for_each_folio_all Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 73/96] mm/lru: Add folio_lru and folio_is_file_lru Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 74/96] mm/workingset: Convert workingset_refault to take a folio Matthew Wilcox (Oracle)
2021-05-05 20:17   ` kernel test robot [this message]
2021-05-05 20:57     ` Matthew Wilcox
2021-05-05 15:06 ` [PATCH v9 75/96] mm/lru: Add folio_add_lru Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 76/96] mm/page_alloc: Add __alloc_folio, __alloc_folio_node and alloc_folio Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 77/96] mm/filemap: Add filemap_alloc_folio Matthew Wilcox (Oracle)
2021-05-06  0:00   ` kernel test robot
2021-05-06  2:28     ` Matthew Wilcox
2021-05-05 15:06 ` [PATCH v9 78/96] mm/filemap: Add folio_add_to_page_cache Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 79/96] mm/filemap: Convert mapping_get_entry to return a folio Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 80/96] mm/filemap: Add filemap_get_folio and find_get_folio Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 81/96] mm/filemap: Add filemap_get_stable_folio Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 82/96] iomap: Convert to_iomap_page to take a folio Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 83/96] iomap: Convert iomap_page_create " Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 84/96] iomap: Convert iomap_page_release " Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 85/96] iomap: Convert iomap_releasepage to use " Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 86/96] iomap: Convert iomap_invalidatepage " Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 87/96] iomap: Pass the iomap_page into iomap_set_range_uptodate Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 88/96] iomap: Use folio offsets instead of page offsets Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 89/96] iomap: Convert bio completions to use folios Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 90/96] iomap: Convert readahead and readpage to use a folio Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 91/96] iomap: Convert iomap_page_mkwrite " Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 92/96] iomap: Convert iomap_write_begin and iomap_write_end to folios Matthew Wilcox (Oracle)
2021-05-05 21:36   ` kernel test robot
2021-05-05 22:10     ` Matthew Wilcox
2021-05-05 15:06 ` [PATCH v9 93/96] iomap: Convert iomap_read_inline_data to take a folio Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 94/96] iomap: Convert iomap_write_end_inline " Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 95/96] iomap: Convert iomap_add_to_ioend " Matthew Wilcox (Oracle)
2021-05-05 15:06 ` [PATCH v9 96/96] iomap: Convert iomap_do_writepage to use " Matthew Wilcox (Oracle)

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