count_vm_event(PGSCAN_DIRECT_THROTTLE); if (!(gfp_mask & __GFP_FS)) /* 如果分配标志禁止了文件系统操作,则将要进行内存回收的进程设置为TASK_INTERRUPTIBLE状态,然后加入到node的pgdat->pfmemalloc_wait,并且会设置超时时间为1s * 1.allow_direct_reclaim(pgdat)为真时被唤醒,而1s没超时,返回剩余timeou...
/* * 对lru链表进行处理 * lru: lru链表的类型 * nr_to_scan: 需要扫描的页框数量,此值 <= 32,当链表长度不足32时,就为链表长度 * lruvec: lru链表描述符,与lru参数结合就得出待处理的lru链表 * sc: 扫描控制结构 */ static unsigned long shrink_list(enum lru_list lru, unsigned long nr_to_sc...
53444#从启动到现在回收DMA存储区用于其它目的的页面数pgscan_kswapd_high0#从启动到现在kswapd后台进程扫描的高址存储区页面数pgscan_kswapd_normal579051#从启动到现在kswapd后台进程扫描的普通存储区页面数pgscan_kswapd_dma59593#从启动到现在kswapd后台进程扫描的DMA存储区页面数pgscan_direct_high0#从启动到现在高...
如果该page frame没有共享(page flag设定PG_direct flag),那么page->pte.direct直接命中pte entry,调用try_to_unmap_one来进行unmap的操作。如果映射到了多个虚拟地址空间,那么沿着pte_chain依次调用try_to_unmap_one来进行unmap的操作。 五、女娲补天 虽然Rik van Riel开辟了逆向映射的新天地,但是,天和地都有着...
*/adrp x0,swapper_pg_dir mov_q x5,KIMAGE_VADDR+TEXT_OFFSET// compile time __va(_text)add x5,x5,x23// add KASLR displacementcreate_pgd_entry x0,x5,x3,x6 adrp x6,_end// runtime __pa(_end)adrp x3,_text// runtime __pa(_text)sub x6,x6,x3// _end - _textadd x6,x6,x5/...
adrp x0, swapper_pg_dir mov_q x5, KIMAGE_VADDR + TEXT_OFFSET // compile time __va(_text) add x5, x5, x23 // add KASLR displacement create_pgd_entry x0, x5, x3, x6 adrp x6, _end // runtime __pa(_end) adrp x3, _text // runtime __pa(_text) ...
adrp x0, swapper_pg_dir mov_q x5, KIMAGE_VADDR + TEXT_OFFSET // compile time __va(_text) add x5, x5, x23 // add KASLR displacement create_pgd_entry x0, x5, x3, x6 adrp x6, _end // runtime __pa(_end) adrp x3, _text // runtime __pa(_text) ...
[root@centos6 ~]#partx -a /dev/sda BLKPG: Device or resource busy error adding partition 1 BLKPG: Device or resource busy error adding partition 2 BLKPG: Device or resource busy error adding partition 3 BLKPG: Device or resource busy error adding partition 4 BLKPG: Device or resource ...
ftp://ftp.gnupg.org/gcrypt/libgcrypt/ Dependency: libgcrypt Install Guide: make > cp vpnc /usr/local/sbin > cp vpnc-disconnect /usr/local/sbin mkdir /etc/vpnc -> cp vpnc-script /etc/vpnc/ mkdir /var/run/vpnc Example /etc/vpnc.conf: ...
pgcli - Pgcli is a command line interface for Postgres with auto-completion and syntax highlighting. PostgreSQL - PostgreSQL is a powerful, open source object-relational database system with more than 15 year development. PostgreSQL is not controlled by any corporation or other private entity and...