int ret = -EBUSY; VM_BUG_ON_PAGE(!page_count(page), page); WARN_RATELIMIT(PageTail(page), "trying to isolate tail page"); if (PageLRU(page)) { struct zone *zone = page_zone(page); struct lruvec *lruvec; spin_lock_irq(&zone->lru_lock); lruvec = mem_cgroup_page_lruvec(pa...
intret = -EINVAL; /*Only take pages on the LRU. */ if (!PageLRU(page)) returnret; /*Compaction should not handle unevictable pages but CMA can do so */ if(PageUnevictable(page) && !(mode &ISOLATE_UNEVICTABLE)) returnret; ret= -EBUSY; if(mode & (ISOLATE_CLEAN|ISOLATE_ASYNC_...
LruMap<String, JobEntity> jobMaps = LruMap();_joinOnDart(String url, Illusts illusts, String fileName) async { final result = await taskPersistProvider.getAccount(url); final result = await fetcher.taskPersistProvider.getAccount(url); ...
During memory pressure (scenarios in which memory is running low), the kernel returns the memory that's used for the page cache so that applications can use that memory.In the free output, the available column indicates how much memory is available for processes to consume. This valu...
903 order等于compound_order(page) 905 如果此条件成立可能性大(为编译器优化)(order < Free memory management - zoned buddy allocator. )则low_pfn加等于1UL左移order位的值减1 907 转到:isolate_fail 915 如果非PageLRU(page)则 920 如果此条件成立可能性小(为编译器优化)(__PageMovable(page))...
During memory pressure (scenarios in which memory is running low), the kernel returns the memory that's used for the page cache so that applications can use that memory.In the free output, the available column indicates how much memory is available for processes to consume. This value is...
isolate_lru_page isolate_lru_pageintisolate_lru_page(struct page *page){int ret = -EBUSY;VM_BUG_ON_PAGE(!page_count(page), page);WARN_RATELIMIT(PageTail(page), "trying toisolatetail page");i #endif #ifdef 原创 sunlei0625 2023-05-30 00:20:28 ...
isolate_lru_pageint isolate_lru_page(struct page *page){int ret = -EBUSY;VM_BUG_ON_PAGE(!page_count(page), page);WARN_RATELIMIT(PageTail(page), "trying to isolate tail page");i #endif #ifdef 原创 sunlei0625 2023-05-30 00:20:28 74阅读 isolate_lru_pages static unsigned long...
Linux kernel uses free (unused) memory to cache I/O requests for better response times. This process is called apage cache. During memory pressure (scenarios in which memory is running low), the kernel returns the memory that's used for thepage cacheso that applications can use th...
Linux kernel uses free (unused) memory to cache I/O requests for better response times. This process is called apage cache. During memory pressure (scenarios in which memory is running low), the kernel returns the memory that's used for thepage cacheso that applications can use that me...