| vmscan.c (d1d8a3b4d06d8c9188f2b9b89ef053db0bf899de) | vmscan.c (8927f6473e56e32e328ae8ed43736412f7f76a4e) |
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| 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds 4 * 5 * Swap reorganised 29.12.95, Stephen Tweedie. 6 * kswapd added: 7.1.96 sct 7 * Removed kswapd_ctl limits, and swap out as many pages as needed 8 * to bring the system back to freepages.high: 2.4.97, Rik van Riel. --- 1228 unchanged lines hidden (view full) --- 1237 1238/* 1239 * Same as remove_mapping, but if the page is removed from the mapping, it 1240 * gets returned with a refcount of 0. 1241 */ 1242static int __remove_mapping(struct address_space *mapping, struct page *page, 1243 bool reclaimed, struct mem_cgroup *target_memcg) 1244{ | 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds 4 * 5 * Swap reorganised 29.12.95, Stephen Tweedie. 6 * kswapd added: 7.1.96 sct 7 * Removed kswapd_ctl limits, and swap out as many pages as needed 8 * to bring the system back to freepages.high: 2.4.97, Rik van Riel. --- 1228 unchanged lines hidden (view full) --- 1237 1238/* 1239 * Same as remove_mapping, but if the page is removed from the mapping, it 1240 * gets returned with a refcount of 0. 1241 */ 1242static int __remove_mapping(struct address_space *mapping, struct page *page, 1243 bool reclaimed, struct mem_cgroup *target_memcg) 1244{ |
| 1245 struct folio *folio = page_folio(page); |
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| 1245 int refcount; 1246 void *shadow = NULL; 1247 1248 BUG_ON(!PageLocked(page)); 1249 BUG_ON(mapping != page_mapping(page)); 1250 1251 if (!PageSwapCache(page)) 1252 spin_lock(&mapping->host->i_lock); --- 31 unchanged lines hidden (view full) --- 1284 page_ref_unfreeze(page, refcount); 1285 goto cannot_free; 1286 } 1287 1288 if (PageSwapCache(page)) { 1289 swp_entry_t swap = { .val = page_private(page) }; 1290 mem_cgroup_swapout(page, swap); 1291 if (reclaimed && !mapping_exiting(mapping)) | 1246 int refcount; 1247 void *shadow = NULL; 1248 1249 BUG_ON(!PageLocked(page)); 1250 BUG_ON(mapping != page_mapping(page)); 1251 1252 if (!PageSwapCache(page)) 1253 spin_lock(&mapping->host->i_lock); --- 31 unchanged lines hidden (view full) --- 1285 page_ref_unfreeze(page, refcount); 1286 goto cannot_free; 1287 } 1288 1289 if (PageSwapCache(page)) { 1290 swp_entry_t swap = { .val = page_private(page) }; 1291 mem_cgroup_swapout(page, swap); 1292 if (reclaimed && !mapping_exiting(mapping)) |
| 1292 shadow = workingset_eviction(page, target_memcg); | 1293 shadow = workingset_eviction(folio, target_memcg); |
| 1293 __delete_from_swap_cache(page, swap, shadow); 1294 xa_unlock_irq(&mapping->i_pages); 1295 put_swap_page(page, swap); 1296 } else { 1297 void (*freepage)(struct page *); 1298 1299 freepage = mapping->a_ops->freepage; 1300 /* --- 9 unchanged lines hidden (view full) --- 1310 * We also don't store shadows for DAX mappings because the 1311 * only page cache pages found in these are zero pages 1312 * covering holes, and because we don't want to mix DAX 1313 * exceptional entries and shadow exceptional entries in the 1314 * same address_space. 1315 */ 1316 if (reclaimed && page_is_file_lru(page) && 1317 !mapping_exiting(mapping) && !dax_mapping(mapping)) | 1294 __delete_from_swap_cache(page, swap, shadow); 1295 xa_unlock_irq(&mapping->i_pages); 1296 put_swap_page(page, swap); 1297 } else { 1298 void (*freepage)(struct page *); 1299 1300 freepage = mapping->a_ops->freepage; 1301 /* --- 9 unchanged lines hidden (view full) --- 1311 * We also don't store shadows for DAX mappings because the 1312 * only page cache pages found in these are zero pages 1313 * covering holes, and because we don't want to mix DAX 1314 * exceptional entries and shadow exceptional entries in the 1315 * same address_space. 1316 */ 1317 if (reclaimed && page_is_file_lru(page) && 1318 !mapping_exiting(mapping) && !dax_mapping(mapping)) |
| 1318 shadow = workingset_eviction(page, target_memcg); 1319 __delete_from_page_cache(page, shadow); | 1319 shadow = workingset_eviction(folio, target_memcg); 1320 __filemap_remove_folio(folio, shadow); |
| 1320 xa_unlock_irq(&mapping->i_pages); 1321 if (mapping_shrinkable(mapping)) 1322 inode_add_lru(mapping->host); 1323 spin_unlock(&mapping->host->i_lock); 1324 1325 if (freepage != NULL) 1326 freepage(page); 1327 } --- 3561 unchanged lines hidden --- | 1321 xa_unlock_irq(&mapping->i_pages); 1322 if (mapping_shrinkable(mapping)) 1323 inode_add_lru(mapping->host); 1324 spin_unlock(&mapping->host->i_lock); 1325 1326 if (freepage != NULL) 1327 freepage(page); 1328 } --- 3561 unchanged lines hidden --- |